D 1369 d radiation-curable secondary coating for optical fibre

FIELD: chemistry.

SUBSTANCE: radiation-curable secondary coating composition contains a mixture of secondary coating oligomers which is mixed with a first diluent monomer; a second diluent monomer; an optional third diluent monomer; an antioxidant; a first photoinitiator; a second photoinitiator; and, optionally, a slide-enhancing additive or a mixture of slide-enhancing additives; wherein said mixture of secondary coating oligomers contains: α) Omega-oligomer; and β) Upsilon-oligomer; wherein said Omega-oligomer is synthesised from reaction of α1) hydroxyl-containing (meth)acrylate; α2) isocynate; α3) polyether polyol; and α4) tripropylene glycol; in the presence of α5) a polymerisation inhibitor; and α6) a catalyst; to obtain an Omega-oligomer; wherein said catalyst is selected from a group comprising copper naphthenate, cobalt naphthenate, zinc naphthenate, triethylamine, triethylenediamine, 2-methyltriethylenediamine, dibutyl tin dilaurate, metal carboxylates, sulphonic acids, catalysts based on amines or organic bases, zirconium and titanium alkoxides and ionic liquid salts of phosphonium, imidazolium and pyridinium; and wherein said Upsilon-oligomer is epoxy diacrylate. The method of applying the coating onto an optical fibre involves operation of a glass drawing column to obtain optical glass fibre; applying a radiation-curable primary coating composition onto said optical glass fibre; optional exposure of said radiation-curable primary coating composition to radiation in order to cure said coating; applying a radiation-curable secondary coating composition in paragraph 1 onto said optical glass fibre; and exposing said radiation-curable secondary coating composition to radiation in order to said coating.

EFFECT: obtaining optical fibre and a conductor having a cured secondary coating.

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[0001] This patent application claims the priority of provisional patent application U.S. No. 60/874723, "radiation Curable secondary coating D for optical fiber", filed December 14, 2006.

The technical field to which the invention relates.

[0002] the Present invention relates to radiation curable coatings for use as a secondary coating for optical fibers coated with the aforementioned coating optical fibers and methods for producing optical fibers with the floor.

The level of technology

[0003] Optical fibers typically cover two or more radiation-curable coatings. These coatings are usually applied to the optical fiber in a liquid form and then exposed to radiation to effect the curing. The type of exposure that can be used for curing coatings, must be such as to be able to initiate the polymerization of one or more radiation-curable components such coatings. Radiation suitable for curing such coatings are well known and include ultraviolet radiation ("UV") and electron beam ("E"). The preferred type of radiation for curing coatings applied when obtaining an optical fiber with a coating that is UV.

[0004] Coating that is in contact directly the NGOs with optical fiber, called primary coating, and a coating that covers the primary coating, referred to as the secondary coating. In the field of radiation curable coatings for optical fibers is known that the primary coatings are softer than the secondary coating. One of the benefits of this composition, is the increased resistance to microshell.

[0005] Microengine are sharp, but microscopic curvature of the optical fiber involving local axial displacement on a few micrometers and spatial wavelengths of a few millimeters. Microengine can be caused by thermal stress and/or mechanical shearing forces. If they are present, microengine weaken the ability of the signal transmission optical fiber coating. Weakening is an undesirable decrease of the signal transmitted by the optical fiber.

[0006] a Relatively soft primary coating provides resistance to the emergence of microthiol, which leads to reduction in the ability to the signal transmission optical fiber with the coating and is therefore undesirable. Microengine are sharp, but microscopic curvature of the optical fiber involving local axial displacement of several micrometers and a length space, Breakfast is the only waves of a few millimeters. Microengine can be caused by thermal stress and/or mechanical shearing forces. Coatings can provide protection from shear forces, thereby protecting the optical fiber from the appearance of microthiol, but by reducing the diameter of the coating decreases the degree of protection. The relationship between coverage and protection from the transverse stress, which leads to the formation of microthiol, is discussed, for example, in the works of D. Gloge, "Optical-fiber packaging and its influence on fiber straightness and loss", Bell System Technical Journal, Vol.54, 2, 245 (1975); W.B. Gardner, "Microbending Loss in Optical Fibers", Bell System Technical Journal, Vol.54, No. 2, p.457 (1975); T. Yabuta, "Structural Analysis of Jacketed Optical Fibers Under Lateral Pressure", J. Lightwave Tech., Vol.LT-I, No.4, p.529 (1983); L.L. Blyler, "Polymer Coatings for Optical Fibers", Chemtech, p.682 (1987); J. Baldauf, "Relationship of Mechanical Characteristics of Dual Coated Single Mode Optical Fibers and Microbending Loss", IEICE Trans. Commun., Vol.E76-B, No.4, 352 (1993); and K.Kobayashi, "Study of Microbending Loss in Thin Coated Fibers and Fiber Ribbons", IWCS, 386 (1993). More solid outer primary coating, that is, the secondary coating provides resistance to manipulation efforts, such as efforts that occur when laying fiber coated in tape and/or the laying of cable.

[0007] the Composition of the secondary coating of the optical fibers typically contain, prior to curing, the mixture of the ethylene-unsaturated compounds, often consisting of one or more oligomers which are dissolved or dispersed in a liquid ethylene-nenas is on the thinner, and photoinitiators. The composition of the coating is usually applied to the optical fiber in a liquid form and then exposed to actinic radiation to effect the cure.

[0008] In many of these compositions are applied urethane oligomer having reactive end groups and the polymer main chain. Compositions usually contain reactive diluents, photoinitiators in order to make the composition UV, and other suitable additives.

[0009] In published PCT patent application WO 2005/026228 A1, published, 24.03.2005 some, "Curable Liquid Resin Composition, in the name of inventors Sugimoto, Kamo, Shigemoto, Komiya and Steeman, described and claimed curable liquid polymer composition comprising: (A) a urethane(meth)acrylate having a structure derived from the polyol, and srednecenovogo molecular weight of 800 g/mol or more, but less than 6000 g/mol, and (B) a urethane(meth)acrylate having a structure derived from a polyol, and srednecenovogo molecular weight of 6000 g/mol or more, but less than 20,000 g/mol, and the total amount of the component (a) and component (b) is 20-95 wt.% from the curable liquid polymer composition, and the content of component (C) is 0.1-30 wt.% from the total mass of the component (a) and component (B).

[0010] it Was proposed a variety of materials for use as the polymer main zauryadnogo oligomer. For example, the urethane oligomers used polyols, such as hydrocarbon polyols, simple polyether polyols, polycarbonate polyols and complex polyether polyols. Complex polyether polyols are particularly attractive because of their commercial availability, resistance to oxidation and versatility, allowing you to adapt the characteristics of the coating by modification of the main chain. The use of complex polyether polyols of the polymer main chain in urethaneacrylate the oligomer described, for example, in U.S. patents№5146531, 6023547, 6584263, 6707977, 6775451 and 6862392, as well as the European patent 539030 A.

[0011] the Problems of cost, use and processing of urethane precursors led to the use of basurmanova oligomers in the coating compositions. For example, basurmanova complex preferability oligomers used in the radiation curable compositions of coatings for optical fibres. In the Japan patent 57-092552 (Nitto Electric) described the coating material of the optical fiber containing poliafito(meth)acrylate, where koinopolitia main chain has an average molecular weight of 300 or more. In the application for patent in Germany 04 12 68 60 Al (Bayer) described a matrix material for tricholimnas tape consisting of lozhnopolaugitionah oligomer, 2-(N-butyl-carbamyl)acrylate as actionresponse diluent and 2-hydroxy-2-methyl-1-phenylpropane-1-it as photoinitiator. In the patent application of Japan No. 10-243227 (publication No. 2000-072821) described curable liquid polymer composition containing lozhnopolojitelny oligomer, which consists of a simple polyetherdiol having as the active end groups of the two dicyclomine or anhydrides and ending with hydroxyethyl acrylate. In U.S. patent 6714712 B2 describes radiation-curable coating composition containing lozhnopolojitelny and/or Alcide(meth)acrylate oligomer containing polyacidic the remainder or its anhydride, optionally a reactive diluent, and, optionally, photoinitiator. Also, in the article, Mark D. Soucek and Aaron N. Johnson described the use hexahydrophthalic acid hydrolytic stability, "New Intramolecular Effect Observed for Polyesters: An Anomeric Effect," JCT Research, Vol.1, No. 2, p.111 (April 2004).

[0012] US-B-6630242 describes radiation-curable composition for coating optical fibers. Example 9 this document describes how to obtain colored outer primary coatings (also known as secondary coverage). However, none of these outer primary coating does not contain described here alpha oligomer, obtained using tripropyleneglycol.

[0013] Despite attempts in the prior art to develop a coating composition containing basurmanova oligomers, there still needs the ü in the secondary coatings which are cheap, thus satisfying many different desirable requirements, such as improved utverjdaemogo and high speed curing and flexibility in application, while still achieving the desirable physical characteristics of different applied coatings.

[0014] Although the currently available number of secondary coatings, it is advisable to offer new secondary coatings that have superior technological and/or operational characteristics in comparison with existing coatings.

The invention

[0015] the First aspect of the claimed invention now is a radiation-curable composition of the secondary coating, and said composition contains:

A) a mixture of oligomers of the secondary coating, which is mixed with

B) a first monomer-diluent;

C) a second monomer-diluent;

D) optionally, a third monomer-diluent;

(E) an antioxidant;

F) the first photoinitiator;

G) a second photoinitiator; and

H) optional, improves the slip additive or a blend of improving slip additives;

these mixture of oligomers secondary coating contains:

α) omega-oligomer; and

β) Upsilon-oligomer;

and mentioned the omega oligomer synthesized by the reaction:

α1) GI is oxycodonesee (meth)acrylate;

α2) isocyanate;

α3) simple polyetherpolyols; and

α4) tripropyleneglycol; in the presence of

α5) inhibitor of polymerization; and

α6) catalyst;

obtaining omega-oligomer;

these catalyst selected from the group consisting of copper naphthenate, cobalt naphthenate, zinc naphthenate, triethylamine, triethylenediamine, 2-methyldiethanolamine, dilaurate dibutylamine, carboxylates of metals, sulfonic acid catalysts based on amines or organic bases, alkoxides of zirconium and titanium and ionic liquid phosphonium salts of imidazole and pyridinium; and

these Upsilon-oligomer is epoxidized.

[0016] the Second aspect of the claimed now of the invention is a method of coating an optical fiber, including:

a) column extraction of glass with receiving optical fiber;

b) coating on said optical fiber radiation-curable composition of the primary coating;

c) optionally contacting the mentioned radiation-curable composition of the primary coating with radiation for curing of the coating;

d) coating on said optical fiber radiation-curable composition of the secondary coating under paragraph 1; and

(e) contacting mentioned curing of the doctrine of the composition of the secondary coating to radiation to cure the coating.

[0017] a Third aspect of the claimed invention now is a variant in which the work mentioned column extraction of glass is performed with a linear speed between 750 meters/minute and 2100 meters/minute.

[0018] the Fourth aspect of the claimed invention now is wire covered with the first and second layer and the first layer is utverjdenie radiation curable primary coating that is in contact with the outer surface of the wire, and the second layer is utverjdenie radiation curable secondary coating of the claimed invention now in contact with the outer surface of the primary coating,

this utverjdenie secondary coating on the wire has the following properties after initial cure and after one month aging at 85°C and a relative humidity of 85%:

A) A % RAU of from 80% to 98%;

B) in-situ modulus of between 0,60 GPA 1.90 GPA; and

C) Twithtubes from 50°C to 80°C.

[0019] the Fifth aspect of the claimed invention now is an optical fiber coated with the first and second layer and the first layer is utverjdenie radiation curable primary coating that is in contact with the outer surface of the optical fiber and the second layer is utverjdenie radiation curable secondary coating for Savino is from now to the invention, in contact with the outer surface of the primary coating,

this utverjdenie secondary coating on the optical fiber has the following properties after initial cure and after one month aging at 85°C and a relative humidity of 85%:

A) A % RAU of from 80% to 98%;

B) in-situ modulus of between 0,60 GPA 1.90 GPA; and

C) Twithtubes from 50°C to 80°C.

Detailed description of the invention

[0020] throughout this patent application the following abbreviations have the following meanings:

AbbreviationValue
EIT2,6-di-tert-butyl-p-cresol, supplied Fitz Chem.
CASmeans the registration number of the Chemical Abstracts.
CN-120Zepoxidized, supplied by Sartomer.
DABCO1,4-diazabicyclo[2.2.2]octane, supplied by Air Products.
DBTDLdilaurate dibutylamine supplied OMG Americas.
NOPEhydroxyethylacrylate supplied by BASF.
NRA hexahydrophthalic anhydride supplied by Milliken Chemical.
Irgacure 1841-hydroxycyclohexane from Ciba Geigy.
Irganox 1035thiodiethyl-bis(3,5-di-tert-butyl-4-hydroxyhydrocinnamate), supplied by Ciba Geigy.
SR-506isobutylacetate available as SR-506 from Sartomer.
Photomer 4066the acrylate of ethoxylated Nonylphenol, supplied by Cognis.
Pluracol 1010polypropylenglycol (MM=1000)supplied by BASF.
SR-306HPdiacrylate tripropyleneglycol (TPGDA), supplied by Sartomer.
SR-349diacrylate ethoxylated bisphenol a supplied
Sartomer.
TDIthe 80/20 mixture of 2,4 - and 2,6-isomers colordistance supplied by BASF.
IPDIisophorondiisocyanate supplied by Bayer.
TPO2,4,6-trimethylbenzenesulfonamide supplied the Chitech.

[0021] the First aspect of the claimed invention now is a radiation-curable composition of the secondary coating, and said composition contains:

A) a mixture of oligomers of the secondary coating, which is mixed with

B) a first monomer-diluent;

C) a second monomer-diluent;

D) optionally, a third monomer-diluent;

E) an antioxidant;

F) the first photoinitiator;

G) a second photoinitiator; and

H) optional, improves the slip additive or a blend of improving slip additives;

these mixture of oligomers secondary coating contains:

α) omega-oligomer; and

β) Upsilon-oligomer;

and mentioned the omega oligomer synthesized by the reaction:

α1) hydroxyl-containing (meth)acrylate;

α2) isocyanate;

α3) simple polyetherpolyols; and

α4) tripropyleneglycol; in the presence of

α5) inhibitor of polymerization; and

α6) catalyst;

obtaining omega-oligomer;

these catalyst selected from the group consisting of copper naphthenate, cobalt naphthenate, zinc naphthenate, triethylamine, triethylenediamine, 2-methyldiethanolamine, dilaurate dibutylamine, carboxylates of metals, sulfonic acid catalysts based on amines or organic bases, alkoxides of zirconium and titanium and an ionic liquid salt f is stone, imidazole and pyridinium; and

these Upsilon-oligomer is epoxidized.

[0022] the omega oligomer get the reaction of the hydroxyl-containing (meth)acrylate, isocyanate, simple polyetherpolyols and tripropyleneglycol in the presence of a polymerization inhibitor and a catalyst.

[0023] the hydroxyl-containing (meth)acrylate used to obtain omega-oligomer, may be of any suitable type, but preferably is hydroxyalkyl(meth)acrylate, such as hydroxyethylacrylate (NEA), or is an acrylate selected from the group consisting of polypropylenglycol (RRA), tripropyleneglycol (TPGMA), caprolactone acrylate and pentaerythritoltetranitrate (for example, SR-444). It is preferable NEA. When receiving the omega-hydroxyl-containing oligomer (meth)acrylate may be added to the reaction mixture in an amount of 2 wt.% up to 20 wt.%, and, preferably, from 5 to 7 wt.%, calculated on the total weight of the composition of the coating.

[0024] the Isocyanate may be of any suitable type, for example aromatic or aliphatic, but is preferably a diisocyanate. Suitable diisocyanates known in the art and include, for example, isophorondiisocyanate (IPDI), colorvision (TDI). Preferably, the diisocyanate is TDI.

[0025] When the floor is attachment omega-isocyanate oligomer may be added to the reaction mixture in a quantity of 2 wt.% up to 20 wt.%, and, preferably, from 7 to 9 wt.%, calculated on the total weight of the composition of the coating.

[0026] a Simple polyetherpolyols can be selected from the group consisting of polyethylene glycol and polypropylenglycol. Preferably, a simple polyetherpolyols is polypropylenglycol with srednecenovogo molecular weight of from 300 g/mol to 5000 g/mol, and more preferably-polypropylenglycol with srednecenovogo molecular weight of about 1000 (e.g., polypropylenglycol Pluracol R, supplied by BASF). When receiving omega-oligomer simple polyetherpolyols can be added to the reaction mixture in an amount of 2 wt.% to 36 wt.%, and, preferably, from 15 to 18 wt.%, calculated on the total weight of the composition of the coating.

[0027] Tripropyleneglycol (TPG) commercially available, for example, from Dow Chemical. When receiving omega-oligomer tripropyleneglycol can be added to the reaction mixture in amounts of 0.1 wt.% up to 5 wt.%, and, preferably, from 0.3 to 0.6 wt.%, calculated on the total weight of the composition of the coating.

[0028] Obtaining omega-oligomer is carried out in the presence of a polymerization inhibitor, which is used for inhibiting polymerization of acrylate in the reaction time. Many different inhibitors known in the art and can be applied upon receipt of Oleg the measure, including, but not limited to, bottled hydroxytoluene (BHT), hydroquinone and its derivatives, such as simple methyl ether of hydroquinone and 2,5-dibutylamino; 3,5-di-tert-butyl-4-hydroxytoluene; methyl-di-tert-butylphenol; 2,6-di-tert-butyl-p-cresol; and the like. The preferred polymerization inhibitor is BHT. When receiving omega-oligomer polymerization inhibitor may be added to the reaction mixture in amounts comprising from 0.001 wt.% to 1.0 wt.%, and, preferably, from 0.01 to 0.03 wt.%, calculated on the total weight of the composition of the coating.

[0029] Obtaining omega-oligomer is carried out in the presence of a catalyst, such as catalyst oreanization.

[0030] Suitable catalysts are well known in the art and can be selected from the group including copper naphthenate, cobalt naphthenate, zinc naphthenate, triethylamine, triethylenediamine, 2-methyldiethanolamine, dilaurate dibutyrate (DBTDL); carboxylates of metals, including, but not limited to: vismutorganicheskikh catalysts, such as neodecanoic bismuth, CAS 34364-26-6; neodecanoate zinc CAS 27253-29-8; neodecanoate zirconium, AS 39049-04-2; and 2-zinc ethylhexanoate, CAS 136-53-8; sulfonic acids, including but not limited to, dodecylbenzenesulfonic acid, CAS 27176-87-0; and methansulfonate acid, CAS 75-75-2; catalysts based on amines or the organic bases, including, but not limited to: 1,2-dimethylimidazole, AS 1739-84-0; and diazabicyclo[2.2.2]octane (DABCO), AS 280-57-9 (strong base); and triphenylphosphine; alkoxides of zirconium and titanium, including, but not limited to, piperonyl zirconium (tetramethylsilane), CAS 1071-76-7; and piperonyl titanium (tetrabutyltin)CAS 5593-70-4; and ionic liquid phosphonium salts of imidazole and pyridinium, such as, but not limited to, hexaflurophosphate trihexy(tetradecyl)phosphonium, AS No. 374683-44-0; acetate 1-butyl-3-methylimidazole, CAS No. 284049-75-8; and chloride N-butyl-4-methylpyridine, CAS No. 125652-55-3; and tetradecyl(trihexy)phosphonium available as Cyphosil 101.

[0031] the Catalyst is preferably a catalyst based on amines, more preferably, the catalyst is DABCO.

[0032] the Catalyst can be used in a free, soluble and homogeneous state, or may be associated with inert agents such as silica gel or crosslinked divinyl macrostate resin, and used in heterogeneous able to be filtered by the completion of the synthesis of the oligomer. When receiving omega-oligomer catalyst may be added to the reaction mixture in any suitable amount, preferably from 0.001 wt.% up to 1 wt.%, and preferably from 0.06 to 0.1 wt.%, calculated on the total weight of the composition of the coating.

Upsilon-oligomer

[0033] Upsilon-oligomer made the focus of epoxidized. Preferably, the Ypsilon-aromero is appoximately oligomer based on bisphenol a, such as oligomer CN120 or CN120Z sold by Sartomer. More preferably, the Ypsilon-oligomer is CN120Z.

[0034] Upsilon-oligomer may be present in the coating composition in amounts of 1 wt.% up to 50 wt.%, and, preferably, from 20 wt.% up to 25 wt.%, calculated on the total weight of the composition of the coating.

Curing radiation, the composition of the secondary coating

[0035] the omega oligomer and Upsilon-oligomer according to the invention is mixed with formation of a mixture of oligomers of the secondary coating, which is then mixed with the first, second and optional third monomer-solvent, then add the antioxidant, the first photoinitiator, the second photoinitiator and, optionally, to improve the slip additive or a blend of improving slip additives, with the formation of the radiation-curable composition of the secondary coating according to the invention. When receiving a radiation-curable composition of the secondary coating according to the invention usually first synthesize omega-oligomer, and then add Upsilon-oligomer with the formation of a mixture of oligomers of the secondary coating.

[0036] the First, second and optional third monomer diluent can be a monomer with low viscosity, having at least tofunctions group, capable of polymerization upon irradiation with actinic radiation. This functional group may have the same nature, as the group used in radiation-curable omega oligomer. Preferably, the functional group present in the monomer-solvent capable of copolymerisate with radiation-curable functional group present in the omega oligomer. More preferably, this radiation-curable functional group forms free radicals during curing, which can react with free radicals that are formed on the surface of the optical fiber with the processed surface.

[0037] for Example, the monomer-diluent may be a monomer or mixture of monomers having an acrylate or vinyl ester functional group and C4-C20is an alkyl or easy polyester group. Specific examples of such monomers diluents include hexylaniline, 2-ethyl hexyl acrylate, isobutylacetate, dellaquila, laurelcrest, stearylamine, 2-ethoxyacetylene, Laurelville ether, 2-ethylhexylacrylate ether, isodecyladipate (for example, SR-395, supplied by Sartomer), isooctadecyl, N-vinylcaprolactam, N-vinyl pyrrolidone, tripropyleneglycol (TPGMA), acrylamide and alkoxysilane derivatives, such as ethoxyline the config laurelcrest, the ethoxylated isodecyladipate and the like.

[0038] Another type of monomer-diluent that can be used is a compound having an aromatic group. Specific examples of the monomer-solvent having an aromatic group include phenyl acrylate ester of ethylene glycol, acrylate phenyl ether of polyethylene glycol, phenyl acrylate ester polypropylenglycol and alkyl substituted phenyl derivatives of the above monomers, such as acrylate nonylphenylether ether of polyethylene glycol. The preferred monomer-diluent is an ethoxylated nonylphenolic (e.g., Photomer 4066, supplied by Cognis; SR-504D, supplied by Sartomer).

[0039] the Monomer-diluent may also include a diluent having two or more functional groups capable of polymerization. Specific examples of such diluents include valdecilla hydrocarbons With2-C18, divinelvie esters hydrocarbons With4-C18triacrylate hydrocarbons With3-C18their polyester counterparts and the like, such as 1,6-hexanediamine, trimethylolpropane, hexaniacinate ether, diacrylate triethylene glycol, triacrylate of pentaerythritol, diacrylate ethoxylated bisphenol a, diacrylate tripropyleneglycol (TPGDA, such as SR-306; SR-306HP, supplied by Sartomer) and Tria is relat Tris-2-hydroxyethylmethacrylate (for example, SR-368, supplied by Sartomer).

[0040] the First monomer-diluent is preferably a monomer having an acrylate or vinyl ester functional group and C4-C20is an alkyl or easy polyester group, more preferably, the acrylate of ethoxylated Nonylphenol (e.g., Photomer 4066). The second monomer-diluent preferably is a compound having an aromatic group, more preferably, diacrylate ethoxylated bisphenol A (SR-349). Optional third monomer-diluent is preferably a monomer having two or more functional groups capable of polymerization, more preferably, diacrylate tripropyleneglycol (SR-306HP).

[0041] the Monomer-diluent may be added to the coating composition in amounts of 5 wt.% up to 75 wt.%, and, preferably, from 35 to 45 wt.%, calculated on the total weight of the composition of the coating. If you add first, second and third monomers, diluent, it is preferable that the amount of the first monomer-diluent ranged from 2 wt.% up to 30 wt.%, preferably, from 4 wt.% to 7 wt.%, the number of the second diluent ranged from 2 wt.% up to 50 wt.%, preferably, from 15 wt.% up to 25 wt.%, and the number of the third diluent ranged from 2 wt.% up to 50 wt.%, preferably, from 13 wt.% to 19 wt.%, in the calculation of the mass to the position of the coating.

[0042] the Antioxidant is a spatial shortness of phenolic compounds such as 2,6-di-tert-butyl-4-METHYLPHENOL, 2,6-di-tert-butyl-4-ethylphenol, 2,6-di-tert-butyl-4-n-butylphenol, 4-hydroxymethyl-2,6-di-tert-butylphenol, and such commercially available compounds, as thiodiethyl-bis(3,5-di-tert-butyl-4-hydroxyl)hydrocinnamate, octadecyl-3,5-di-tert-butyl-4-hydroxyhydrocinnamate, 1,6-hexamethylene-bis(3,5-di-tert-butyl-4-hydroxyhydrocinnamate) and tetrakis(methylene(3,5-di-tert-butyl-4-hydroxyhydrocinnamate))methane, all come Ciba Geigy as Irganox 1035, 1076, 259 and 1010, respectively. Other examples of relevant spatial difficult phenolic compounds include 1,3,5-trimethyl-2,4,6-Tris(3,5-di-tert-butyl-4-hydroxybenzyl)benzene and 4,4'-methylene-bis(2,6-di-tert-butylphenol), supplied by Ethyl Corporation as Ethyl 330 and 702, respectively. The preferred antioxidant is thiodiethyl-bis(3,5-di-tert-butyl-4-hydroxyl)hydrocinnamate (for example, Irganox 1035). The antioxidant may be added to the coating composition in an amount comprising from 0.001 wt.% up to 1 wt.%, and, preferably, from 0.3 wt.% to 0.7 wt.%.

[0043] the First photoinitiator can be photoinitiator type α-hydroxyketone, such as 1-hydroxycyclohexane (for example, Irgacure 184, supplied by Ciba Geigy; Chivacure 184, supplied Chitec Chemicals), 2-hydroxy-2-methyl-1-phenylpropane-1-the n (for example, Darocur 1173, supplied by Ciba Geigy), 2-benzyl-2-dimethylamino-1-(4-morpholinomethyl)butane-1-he, 2,2-dimethoxy-2-phenyl-acetophenone, 2-methyl-1-[4-(methylthio)phenyl]-2-(4-morpholinyl)-1-propanone, 2-methyl-1-[4-(methylthio)phenyl]-2-morpholinopropan-1-it (for example, Irgacure 907, supplied by Ciba Geigy), 4-(2 hydroxyethoxy)phenyl-2-hydroxy-2-propylketone-dimethoxy-phenylacetophenone, 1-(4-isopropylphenyl)-2-hydroxy-2-methyl-propane-1-it, 1-(4-dodecylphenyl)-2-hydroxy-2-methylpropan-1-he 4-(2-hydroxyethoxy)phenyl-2-(2-hydroxy-2-propyl)ketone. Preferably, the first photoinitiator is 1-hydroxycyclohexyl (for example, Irgacure 184).

[0044] the Second photoinitiator can be photoinitiator type phosphine oxide, such as 2,4,6-trimethylbenzoyl-diphenylphosphine (SRW; for example, LucirinTPO supplied by BASF; DarocurTPO, supplied by Ciba Geigy), bis(2,4,6-trimethylbenzoyl)phenylphosphine (for example, Irgacure 819, supplied by Ciba Geigy), or photoinitiator type besatisfied (VARO). Preferably, the second photoinitiator is TRO.

[0045] the First photoinitiator can be added to the coating composition in amounts of 0.1 wt.% to 7 wt.%, preferably, from about 1.75 wt.% up to 3.75 wt.%. The second photoinitiator can be added to the coating composition in amounts of 0.1 wt.% to 7 wt.%, preferably, from 0.5 wt.% up to 1 wt.%.

[0046] to Improve the sliding doba is key are available for sale. The preferred mixture improves the slip additive is a mixture sold by Dow Corning of siloxane DC-57, which is dimethylethyl(propyl-(poly(EO))acetate)siloxane (registration number CAS 70914-12-4), and sold by Dow Corning siloxane mixture DC-190, which is a mixture of from 40.0 to 70.0 wt.% dimethylethyl-(propyl(poly(EO)(PO))acetate)siloxane (registration number CAS 68037-64-9), from 30.0 to 60.0 wt.% acetate poly(ethylene oxide-propylene oxide)monoallyl ether (registration number CAS 56090-69-8) and less than 9,0 wt.% acetate simple polyetherpolyols (registration number CAS 39362-51-1). Improves slip additives can be added to the coating composition in amounts of 0.1 wt.% up to 1 wt.%, preferably from 0.35 wt.% to 0.75 wt.%.

[0047] In one embodiment, radiation-curable composition of the secondary coating is as follows:

Omega-oligomer
hydroxyl-containing (meth)acrylatefrom 5 to 7 wt.%
isocyanatefrom 7 to 9 wt.%
polyetherpolyolsfrom 15 to 18 wt.%
tripropyleneglycolabout the 0.3 to 0.6 wt.%
inhibitor of polymerizationfrom 0.01 to 0.03 wt.%
catalystfrom 0.06 to 0.1 wt.%
Upsilon-oligomer
epoxidizedfrom 20 to 25 wt.%
Monomers-thinners
the first monomer-diluentfrom 4 to 7 wt.%
the second monomer-diluentfrom 15 to 25 wt.%
the third monomer-diluentfrom 13 to 19 wt.%
Other additives
antioxidantfrom 0.3 to 0.7 wt.%
first photoinitiatorfrom about 1.75 to 3.75 wt.%
the second photoinitiatorfrom 0.5 to 1 wt.%
improves slip additives (optional)from 0.35 to 0.75 wt.%

[0048] In another embodiment, radiation-curable composition again what about the cover is the following:

Omega-oligomer32,08 wt.%
hydroxyl-containing (meth)acrylate (for example, NEA)of 6.49 wt.%
isocyanate (e.g., TDI)8,12 wt.%
polyetherpolyols (e.g., Pluracol P1010)16,89 wt.%
tripropyleneglycol0.48 wt.%
inhibitor of polymerization (e.g., BHT)0.02 wt.%
the catalyst (for example, DABCO)to 0.8 wt.%
Upsilon-oligomer
epoxidized (for example, CN120Z)22,27 wt.%
Monomers-thinners41,66 wt.%
the first monomer-diluent (for example, acrylate ethoxylated of nonylphenyl)5,66 wt.%
the second monomer-diluent (for example, diacrylate ethoxylated bisphenol a)20,00 wt.%
the third monomer-diluent (for example, d is the acrylate of tripropyleneglycol) 16.00 wt.%
Other additives4.50 wt.%
antioxidant (for example, Irganox 1035)0.5 wt.%
first photoinitiator (for example, Irgacure 184)to 2.75 wt.%
the second photoinitiator (e.g., TPO)0.75 wt.%
improves slip additives (e.g., DC-57+DC-190)0.5 wt.%
(to 0.17 wt.% + of 0.33 wt.%)
Only100,51 wt.%*
*0,51 other ingredients is not present, if there is an optional mixture improves slip additives

[0049] It is a secondary coverage for the claimed invention now designated as the secondary coating D.

[0050] Once found commercial primary coating, it can be applied directly to the surface of the optical fiber. Curable by radiation of the primary coating can be any commercially available radiation curable primary coating for optical fibers. Such commercially available radiation curable primary coating supplied by DSM Desotech Inc. and others, including, but not about rancevas them Hexion, Luvantix and PhiChem. As the primary coating in the present invention can be used, for example, coating, described in documents EP 2089333 B1, WO 2010/053532, US 6534557 and US 6306924.

[0051] the Stretching is done using the mode or "wet on dry"or "wet on wet". Mode "wet on dry" means that the liquid primary coating is applied wet, and then exposed radiation (irradiated) for curing the liquid primary coating to a hard layer on the wire. After the primary coating overiden cause secondary coating and then also utverjdayut. Mode "wet on wet" means that the liquid primary coating is applied wet, then wet cause secondary floor, and then both coverages, primary and secondary, utverjdayut.

[0052] the Preferred radiation, which is irradiated to effect the curing is ultraviolet.

[0053] If the secondary coating is transparent and not colored, it can be applied layer of the paint coating. If the second floor is painted, the coating layer of paint is usually not applied on the secondary floor. Regardless of cause if the ink coverage, a common practice is to place many of coated fibers along each other team in the tape, putting them on a radiation-curable matrix coating for UD is Rivonia many fibers in place, this team has the tape.

[0054] After overiden secondary coating, usually put a layer of "paint", and then covered and coated optical fiber laid along the other covered and coated optical fibers in a combined tape and use a radiation-curable matrix coating in order to hold the optical fibers in the desired position in this team the tape.

The properties of the secondary coating

[0055] the secondary coating obtained from the coating composition according to the invention, it is desirable to have properties such as elastic modulus, fracture energy and elongation, suitable for coating optical fibers. The secondary coating usually has the energy of destruction more than 12 j/m3, the secant modulus of less than 1500 MPa and Twithmore than 50°C. Preferably, the secondary coating has the energy of destruction more than 14 j/m3, the secant modulus of 200 MPa to 1200 MPa and Twithmore than 60°C. More preferably, the secondary coating has the energy of destruction more than 16 j/m3, the secant modulus of 400 MPa to 1000 MPa and Twithmore than 70°C.

[0056] the secondary coating preferably has an elongation of from 30% to 80%.

[0057] in Addition, preferably, the secondary coating shows the change in equilibrium modulus of elasticity of 20% or less when aged for 60 days at 85°C and a relative humidity of 85%. The module in which rugosity, as is well known, represents the rate of change of strain as a function of voltage. Graphically it is represented by the slope of the linear part of the diagram "stress-strain". The modulus of elasticity can be determined using any device suitable for obtaining the curve "stress-strain" pattern. Suitable for this analysis devices include produced Instron Inc. and, in particular, Instron 5564.

[0058] When determining the modulus of elasticity of hardened coating compositions in accordance with the invention, the sample utverzhdenii radiation compositions draw on a plate with obtaining a thin film or, alternatively, formed into a rod using a cylindrical pattern. The sample is then irradiated with radiation to effect the curing. From utverzhdenii film cut one (or more, if desired average value) of the sample film. A sample (samples should not contain major defects, such as holes, burrs, significant non-uniform thickness. Then the opposite edge of the sample added to the device. During testing, the first end of the sample remains stationary while the device moves the second end of the sample from the first to the so-called speed of the RAM. The speed of the RAM, which may be initially set at 2.54 cm/minute is (1 inch/minute) can be changed if it would be inappropriate for a particular sample, such as high modulus film is destroyed before an acceptable curve tension-deformation. After completing the settings starting the test device, allowing to obtain a curve of stress-strain, elastic modulus and other data. It is important to note that the fracture energy can be measured in several ways. One path includes the modulus of elasticity tensile energy of destruction, which is based on the ability of a material to absorb energy up to the break point and which is determined by measuring the area under the curve of the tension-deformation. Another way of measuring the energy of fracture is the fracture toughness, based on tensile strength, to determine where you want to start with a pre-defined infinitely sharp crack of a certain length and which is used for the critical stress intensity factor obtained from the resistance of a material to the propagation of cracks.

[0059] the examples below illustrate the invention.

EXAMPLES

[0060] test Method tensile strength, elongation and modulus Properties in tension (tensile strength, percentage elongation at break and modulus of elasticity) of solidified samples cured by radiation of the secondary is different coatings for optical fibers have on the films using a universal measuring device Instron model 4201, equipped with a suitable personal computer and software Instron to obtain the values for tensile strength, percent elongation at break and hewer or segment of the module. Samples are prepared for testing by curing 75-micrometer film of material using a UV processor Fusion. Settings UV processor the following:

Lamp: D

The intensity of 120 W/cm

Measuring the intensity of IL 390

The dose of 1.0 j/cm2

Atmosphere of nitrogen

The duration of conditioning at 50%humidity 16-24 hours.

[0061] Samples utverjdayut at 1.0 j/cm2in nitrogen atmosphere. Test samples having a width of 1.27 cm (0.5 inch) and a length of 12.7 cm (5 inches), cut from the film. The exact thickness of each sample is measured with a micrometer. For relatively soft coatings (e.g., having a modulus of elasticity less than about 10 MPa), the coating is applied and utverjdayut on a glass plate and the individual samples are cut with this glass plate with a scalpel. In the Instron device using a torque sensor 0.9 kg (2 lb) and calculate the modulus of elasticity of the 2.5%elongation with the fitting by method of least squares graph of stress-strain. Before the test cured film can stand under conditions of temperature 23±1°C and relative humidity of 50±5% for 16 to 24 hours.

[062] For a relatively hard surface coating applied to the film of Mylar (Mylar) and cut samples of 1.27-cm (0.5-inch) precision blade sampler Thwing Albert. In the Instron device using a torque sensor to 9.1 kg (20 pounds) and calculate the modulus of elasticity of the 2.5%elongation at intersecting at this point. Before the test cured film can stand under conditions of temperature 23±1°C and relative humidity of 50±5% for 16 to 24 hours. For test specimens the base length is 5.1 cm (2 inches), and the speed of the RAM is 2.54 cm/minute (1.00 inch/minute). All testing is carried out at a temperature of 23±1°C and relative humidity of 50±5%. All measurements determined from the average of at least 6 test specimens.

[0063] the Method of testing DMA

Dynamic Mechanical Analysis (DMA) is performed on the test samples with the use of the device RSA-II production Rheometric Scientific Inc. Free sample film (usually about 36 mm long, 12 mm wide and 0.075 mm thick) is inserted into the clamping device and the temperature is initially adjusted to 80°C and maintained at this for about five minutes. During the last period of exposure at 80°C the sample stretch for approximately 2.5% of its original length. Also during this time, identification information about the sample, its size and specific test methods introduced in the software (RSI Orchestrator)installed on the connected PC.

[0064] All tests are often carried out at the e 1.0 radian dynamic method step change temperature, having level 2°C, the cooling-off period of 5-10 seconds, the initial deformation of about 0,001 (ΔL/L), where L = the distance between the gap (and one such device RSA-II, L=22,4 mm) when activated options autonation and avtodetali. Autonation establish in order to ensure that the sample remains under the action of tensile forces throughout the entire test cycle, and autodermal set in order to allow deformation as the sample passes through the glass transition and softens. After 5 minutes of exposure, the temperature in a heating Cabinet for samples reduce the speed to 20°C before reaching the initial temperature, usually -80°C or -60°C. the Final temperature of the test cycle is introduced into the software before the start of the test cycle so that the data about the sample ranged from the region of the vitreous state through the transition region and far in the area of high elasticity.

[0065] Test cycle start and allow you to go to completion. After completion of the test cycle on the computer screen shows a plot of storage modulus tensile = E', loss modulus tensile = E" and tan δ, all depending on the temperature. The experimental data for each curve smooth out with use of the program software. This gr is fiquet identify three points, representing the transition:

[0066] 1) the temperature at which E'=1000 MPa;

[0067] 2) the temperature at which E'=100 MPa;

[0068] 3) the temperature peak on the curve of tan δ.

[0069] If the curve is tangent δ contains more than one peak, measure the temperature of each peak. One additional value obtained from this graph represents the minimum value for E' in the field of high elasticity. This value is recorded as the equilibrium modulus, E0.

[0070] the Method of testing sensitivity to water

The layer composition utverjdayut with getting the test strips of the cured UV coating dimensions 3.8 cm × 3.8 cm × 15-mm (1.5 inch × 1.5 inch and 0.6 mil). The test strip is weighed and placed in a bottle containing deionized water, which is then stored for 3 weeks at 23°C. at periodic intervals of time, for example 30 minutes, 1 hour, 2 hours, 3 hours, 6 hours, 1 day, 2 days, 3 days, 7 days, 14 days and 21 days, the test strip is removed from the vial and gently wipe dry with a paper towel and re-weighed. The percentage of water absorption is recorded as 100 × (weight after immersion - weight before immersion) / (weight before immersion). The peak absorption of water represents the highest value of water absorption reached a 3-week period of immersion. After a 3-week period and pytyvaya strip is dried in a heating Cabinet at 60°C for 1 hour, cool in a desiccator for 15 minutes and re-weighed. The percentage of recoverable water is recorded as 100 × (weight before immersion - weight after drying) / (weight before immersion). Sensitivity to water log |peak absorption of water| + |recoverable water|. Experience three test strips to improve the accuracy of the test.

[0071] test Method for refractive index of

The refractive index of the hardened compositions determined by the method of strips Becke, which entails matching the refractive index of thinly sliced strips utverzhdenii composition with immersion liquids with known properties of refraction. The test is carried out under a microscope at 23°C and using light with a wavelength of 589 nm.

[0072] test Method viscosity

The viscosity is measured using a Physica viscometer MS. Test samples are examined and, if there is an excessive amount of bubbles, take measures to remove most of the bubbles. No need to remove all the bubbles at this stage, because the loading of the sample introduces some amount of bubbles. The device is set up on the ordinary system of Z3, which is used. Samples are loaded into a disposable aluminum glass syringe for measuring 17 cm3. The sample in the Cup investigate and, if it contains excessively the number of bubbles, they removed the direct method, such as centrifugation, or leave it for sufficient to enter the time in order to allow the bubbles to exit the fluid volume. Bubbles on the upper surface of the liquid is acceptable. The pendulum gently immersed in the liquid in a measuring Cup and a glass pendulum set in the device. The temperature of the sample give the opportunity to be balanced with the temperature of the circulating fluid, after waiting for five minutes. Then the rotational speed is set at the desired value, which gives the desired shear rate. The desired value of the shear rate is easily determined by the average expert in the art based on the expected interval of the sample viscosity. The shear rate is usually 50 sec-1or 100 sec-1. The panel reads the value of viscosity, and if the viscosity varies slightly (less than 2% relative change) within 15 seconds, the measurement is complete. If not, then it is possible that the temperature has not reached the equilibrium value, or that the material is changed because of the shift. In the latter case, further testing under different shear rates to determine properties of the sample viscosity. The recorded results are average values of viscosity for the three test specimens. Results are recorded either in CP is x (SP), or in millipascal seconds (MPa·s).

EXAMPLE 1

[0073] the secondary coating D is obtained from the composition is radiation curable secondary coating according to the invention and appreciate.

[0074] the properties of the tensile strength of the cured secondary coating D experience on the rods according to the method described in U.S. patent No. 6862392.

[0075] the Rods get filled elastomeric transparent tubes from silicone rubber composition of the coating and exposure of this composition one Joule of UV radiation from the D lamp nitrogen purging.

[0076] If the tubes are rotated by 180°, there is no need to be cured of the tube in aluminum foil. If the tube does not rotate 180°, the tube needs to be cured on aluminum foil.

[0077] the Rods are removed from the tubes by gently pulling the tube from the end of the rod and cutting off an empty part of the tube with a razor blade. Then the end of the rod clamp forceps and the tube is slowly pulled away from the terminal.

[0078] the tensile Strength, elongation, modulus of tensile elasticity, fracture energy, Emaxand the viscosity of the secondary coating D experience in accordance with the test methods described in U.S. patent No. 6862392.

The results of the tests are presented below.

Tensile testSecondary is opening D
Tensile strength (MPa)54,4
% Elongation at break (%)37,6
The modulus of tensile elasticity (MPa)1137
The fracture energy (j/m3)113,7
Emax= %15,7
Viscosity at 25/35/44/54/64°C44,5
Test DMASecondary coverage D (C)
The pace. and E'=1000 MPa (°C)42,1
The pace. and E'=100 MPa (°C)82,9
The pace. and tangent δmax(C)77,9
The secondary coating D
Equally. moduleMPa
Equally. modulus (MPa)48,7 MPa
Test viscositySecondary coverage D (MPa·s)
25°C6831
35°C2406
45°C936
55°C445
65°C204

[0079] In the early years of the development of coatings of optical fibers all newly developed primary and secondary coatings were first tested on the properties of their utverzhdenii film, and then sent for evaluation to the columns of pulling the fiber. It was found that all of the coatings that were required to pull, at most 30% of them felt on the extraction column because of the high cost and difficulties with schedule planning. The time from the moment when the surface was first drawn up, until the moment when it is applied to fiberglass, usually accounted for approximately 6 months, which has slowed down the development cycle of the product.

[0080] In the technology of radiation hardened coatings for optical fibers, it is known that when either the primary coating, a secondary coating applied to the glass, its properties often differ from the properties of flat utverzhdenii film of the same coating. I believe that this is due to the fact that the coating on the fiber and flat film coatings have differences in sample size, geometry, intensity of UV radiation, the total dose in the received UV radiation, processing speed, the temperature of the substrate, the curing temperature and, possibly, conditions inert atmosphere of nitrogen.

[0081] in order to make possible the development of more reliable coverage and a shorter introduction, we developed equipment that would support curing, similar to the conditions existing at manufacturers of fiber. This type of alternative equipment for applying and curing should be easy to use, require low maintenance and give reproducible process parameters. Name of equipment - simulator extraction columns", hereinafter abbreviated as designated here as "CPI". Simulators exhaust columns are designed according to customer order and are based on a detailed study of the structural elements of the real pillars of glass fiber drawing. All measurements (position lamps, the distance between the rungs of the coating, the gaps between the steps of coating and UV lamps etc.) duplicated with columns of glass fiber drawing. This helps to simulate process conditions used in the industrial equipment of pulling the fiber.

[0082] One of the known CPI has five lamps Fusion F600 - two on the top step of the coating and three on the bottom. The second lamp at each stage can rotate the I different angles between 15-135°, allowing a more detailed study of the curing profile.

[0083] the "Core"used in the known CPI, is a stainless steel wires with a diameter of 130,0±1,0 μm. To assess the available applicators for pulling the fiber of different designs from different vendors. This configuration allows you to apply a coating on the optical fiber under conditions similar to those that take place at industrial enterprises.

[0084] the exhaust Simulator columns have been used to deepen the analysis of radiation-curable coatings for optical fiber. Method of measuring in-situ modulus of the primary coating, which can be used to determine the strength of the coating, the degree of curing and performance of fiber in different environments was presented in 2003 by the authors RAM Steeman, J.J.M. Slot, H.G.H. van Melick, A.A.F. v.d. Ven, H. Cao, and R. Johnson in the Materials of the 52nd International Symposium cable-wire products (the Proceedings of the 52nd IWCS), p.246 (2003). In 2004 Steeman with co-authors reported how the rheological profile of the coatings of the optical fibers at high shear rate can be used to predict the maintainability of the coatings at higher speeds stretching, see RAM Steeman, W. Zoetelief, N. Cao and M. Bulters, Proceedings of the 53rd IWCS, p.532 (2004). Simulator extraction columns can note the change for further study of the properties of the primary and secondary coating on the optical fiber.

[0085] These test methods are applicable for the secondary coating on the wire or coating on the optical fiber.

[0086] Method of testing a % RAU of the secondary coating

The degree of curing the outer coating on the optical fiber is determined using infrared spectroscopy with Fourier transform (FTIR with diamond ATR snap. The parameters of the device FTIR include: 100 jointly imposed scans, resolution 4 cm-1, DTGS detector spectral range 4000-650 cm-1and approximately 25%reduction in the default rate mirrors to improve the ratio of signal to noise ratio. Requires two spectra: one for the uncured liquid coating, which corresponds to the coating on the fiber, and one for the external coating on the fiber. Range of liquid coatings obtained after complete coverage of the diamond surface coating. The liquid must be from the same batch that was used for coating the fiber, but the minimum requirement is that it should have the same composition. The final format of the spectrum must be on the uptake.

[0087] the Fiber set on the diamond and on the fiber having a sufficient pressure in order to obtain a spectrum that is suitable for quantitative analysis. For maximum spectral intensity of the fiber should be placed in the center is lmasa parallel to the direction of the infrared beam. If one fiber have insufficient intensity, the diamond can be located 2-3 fibers parallel to each other and as close as possible. The final format of the spectrum must be on the uptake.

[0088] for the liquid, and to the cured coating measure the peak area as the peak of the double bond of the acrylate at 810 cm-1and control the peak in the field of 750-780 cm-1. The peak area determined using the method baseline, where the baseline is chosen tangent to the minima of the absorption on both sides of the peak. Then determine the area under the peak and above the base line. The limits of integration for liquid and cured sample are not identical, but similar, especially for the control of the peak.

[0089] the Ratio of the peak area of the acrylate to the square of the control peak defined as a liquid and cured samples. The degree of cure, expressed as a percentage reacted acrylate unsaturation (% RAU), calculated by the following equation:

where RLis the ratio of the square of the liquid sample, a RFis the ratio of the square of the cured coating.

[0090] the Method of testing in-situ modulus of the secondary coating

In-situ modulus of the secondary coating on the glass fiber or metal wire fiber with dual covered the eat (soft primary coating and a solid secondary coverage) measured in this test method. For preparation of a sample removed from the fiber layers covering length ~2 cm in the form of a solid tube cover from one end of the fiber with the coating, first immersing the fiber coated with the tool for removal of isolation in liquid N2for at least 10 seconds, and then pulling the tube cover fast movement, until the layers of the coating remain hard. Device DMA (Dynamic mechanical analysis): Rheometrics Solids Analyzer (RSA-II) is used to measure the elastic modulus of the secondary coating. In the case of a fiber with a double coating secondary coating has a higher modulus of elasticity than the primary coating; therefore, the contribution of the primary coating in the results of the dynamic tensile test carried out with a pipe coatings can be ignored. For RSA-II, in which adjustment of the distance between the two clamps is limited, the sample tube coatings may be shorter than the distance between the two clamps. A simple sample holder, made of metal plate, bent and hollow at the open end of the screw, are used for strong retention of the sample tube coating the bottom end. Shift the clamping device in the center of the lower clamp and tighten the clamp. Use tweezers to straighten the tube coating in a vertical position through the top clamp. Close and tighten the top clamp. CME is giving deformation correct as long until the pre-tension is not accounted for ~10 year

[0091] the Test was performed at room temperature (~23°C). When dynamic mode tensile test DMA frequency test set at 1.0 radians/second; the deformation is 5E-4. The geometry type of the selected cylindrical. The sample length equal to the length of the tube coatings between the upper edge of the metal clamping device and the lower clamp 11 mm in our test. The diameter (D) was administered equal to 0.16 mm according to the following equation:

where Rsand Rpare the outer radii of the secondary and primary coatings, respectively. For the calculation using the standard geometry of the fiber, Rs=122,5 μm and Rp=92,5 μm. Produce dynamic time base and write 5 experimental points of the storage modulus tensile means that the value E is the average of all experimental points. This measured module E is then further corrected by multiplying with a correction factor, which uses the actual geometry of the sample. The correction factor is as follows:. For optical fibers actual geometry of the sample, including the values of Rsand Rpmeasure on RK Fiber Geometry System. For the wire fibers values of Rsand Rpmeasured under a microscope. PR is entered the value of E is the average of three test specimens.

[0092] the Method of testing in-situ measurement of Tcthe primary and secondary coatings

The glass transition temperature (Twith) the primary and secondary coatings on glass or metal wire fiber (wire) with a double coating is measured by this method. These glass transition temperature denoted here as Twithtube".

[0093] To obtain a sample with a fiber draw layers covering length ~2 cm in the form of a solid tube of coating from one end of the fiber with the coating, first immersing the fiber coated with the tool for removal of isolation in liquid N2for at least 10 seconds, and then pulling the tube coatings quick movement, until the layers of coatings remain hard.

[0094] the Device DMA (Dynamic mechanical analysis): apply Rheometrics Solids Analyzer (RSA-II). In the case of RSA-II gap between the two clamps RSA-II can be extended up to 1 mm Gap initially set to the minimum level, adjusting the offset strain. A simple sample holder, made of metal plate, bent and hollow at the open end of the screw, are used for strong retention of the sample tube coating the bottom end. Shift the clamping device in the center of the lower clamp and tighten the clamp. Use tweezers to straighten the tube coatings to the vertical through the top clamp. Close the live and tighten the top clamp. Closed heat chamber and set temperature of a heating Cabinet at a value higher than Twithsecondary coverage, or 100°C, using liquid nitrogen as a medium for temperature control. When the temperature of the heating Cabinet has reached this value, the offset deformation correct up until the pre-tensioning was not in the range of 0 g to 0.3 g

[0095] When conducting dynamic tests DMA at step temperature change of the frequency of the test set at 1.0 radians/second; the deformation is 5E-3; a step change in temperature is 2°C, and the exposure time is 10 seconds. The geometry type of the selected cylindrical. Set geometry parameters were the same that were used for testing in-situ modulus of the secondary coating. The sample length equal to the length of the tube coatings between the upper edge of the metal clamping device and the lower clamp 11 mm in our test. The diameter (D) was administered equal to 0.16 mm according to the following equation:

where Rsand Rpare the outer radii of the secondary and primary coatings, respectively. For the calculation using the standard geometry of the fiber, Rs=122,5 μm and Rp=92,5 mm.

[0096] the Dynamic test at step temperature change is carried out from the initial temperature is s (in our test 100°C) to a temperature below T withprimary coverage or -80°C. After the test cycle peaks on the curve tangent (tan δ log Twithprimary coverage (corresponding to a lower temperature) and Twiththe secondary coating (corresponding to a higher temperature). It should be noted that the measured glass transition temperature, especially for the glass transition temperature of the primary coating should be considered as relative values of glass transition temperatures for the layers of coatings on the fiber due to the shift of the tan δ due to the complicated structure of the tube surfaces.

Examples of simulators exhaust columns

[0097] a commercially Available radiation curable primary coating and different ways now declared secondary coating applied to the wire using a simulator exhaust column. The wire is passed with five different linear velocity: 750 m/min, 1200 m/min to 1500 m/min, 1800 meters/minute and 2100 meters/minute.

[0098] the Stretching is done using the mode or "wet on dry"or "wet on wet". Mode "wet on dry" means that the liquid primary coating is applied wet, and then liquid primary coating utverjdayut to a hard layer on the wire. After the primary coating overiden cause secondary coating and then also utverjdayut. The mode of power is Noah on wet" means, liquid primary coating is applied wet, then wet cause secondary floor, and then both coverages, primary and secondary, utverjdayut.

[0099] Spend a lot of test cycles with a commercially available radiation curable primary coating and compositions claimed now the secondary coating. Utverjdenie secondary coating on the wire have on the initial % RAU, the initial in-situ modulus and the initial Twithof the tube. The wire coating is then subjected to aging for one month at 85°C and a relative humidity of 85%. Utverjdenie secondary coating on the wire then test on the % RAU, in-situ modulus and Twithtube.

[0100] the tuning of the exhaust simulator columns:

- use the die Seidle (Zeidl): S99 for 1° and S105 to 2°;

- speed 750, 1000, 1200,1500, 1800 and 2100 m/min;

- use the 5 lamps in the process of "wet on dry" and 3 lamps in the process of "wet on wet";

- (2) 93 W/cm2(600 W/inch2) UV lamp D Fusion is applied at 100% for 1°-governmental coatings;

- (3) 93 W/cm2(600 W/inch2) UV lamp D Fusion is applied at 100% for 2°-governmental coatings.

- Temperature for these two coatings is 30°C. the Die is also set to 30°C.

- The level of carbon dioxide is 7 liters/min at each filiere.

- The level of nitrogen is 20 liters/is in for each lamp.

- Pressure for 1°th coating is 1 bar at 25 m/min up to 3 bar at 1000 m/min

- Pressure for 2°th coating is 1 bar at 25 m/min and up to 4 bar at 1000 m/min

[0101] Utverjdenie radiation curable secondary coating on the wire has been having the following properties:

Linear speed (m/min)% RAU secondary coating (primary)% RAU secondary coating (1 month)
75090-9494-98
120086-9091-95
150082-8690-94
180083-8789-93
210080-8489-93
Linear speed (m/min)In-situ modulus secondary coating (HPa)In-situ modulus secondary coating (HPa) (1 month)
750 1,30-1,701,40-1,90
12001,00-1,401,50-1,70
15001,00-1,401,30-1,70
18001,00-1,401,10-1,50
21000,60-1,001,00-1,40
Linear speed (m/min)The values of Twiththe secondary tube (°C) (initial)The values of Twiththe secondary tube (°C) (1 month)
75068-8068-80
120065-6967-71
150060-6461-65
180061-6561-65
210050-5855-59

[0102] Therefore, it is possible to describe and claim the wire covered with the first and second layers and the first layer is overiden the e radiation-curable primary coating, which is in contact with the outer surface of the wire, and the second layer is utverjdenie radiation curable secondary coating of the claimed invention now in contact with the outer surface of the primary coating,

this utverjdenie secondary coating on the wire has the following properties after initial cure and after one month aging at 85°C and relative humidity of 85%:

A) A % RAU of from 80% to 98%;

B) in-situ modulus of between 0,60 GPA 1.90 GPA; and

C) Twithtubes from 50°C to 80°C.

[0103] Using this information, it is also possible to describe and to declare an optical fiber covered with the first and second layers and the first layer is utverjdenie radiation curable primary coating that is in contact with the outer surface of the optical fiber and the second layer is utverjdenie radiation curable secondary coating of the claimed invention now in contact with the outer surface of the primary coating,

this utverjdenie secondary coating on the optical fiber has the following properties after initial cure and after one month aging at 85°C and relative humidity of 85%:

A) A % RAU of from 80% to 98%;

B) in-situ modulus of between 0,60 GPA 1.90 GPA; and

C) Twithtubes from 50°C to 80°C.

[0104] Campisano above, curable by radiation of the primary coating can be any commercially available radiation curable primary coating for optical fibers. Such commercially available radiation curable primary coating supplied by DSM Desotech Inc. and others, including, but not limited to, Hexion, Luvantix and PhiChem.

[0105] the Use of terms in the singular in the context of describing the invention (especially in the context of the following claims) should be considered as related to a single and plural, if there is not specified or expressly contrary to the context. The terms "comprising", "having", "including" and "comprising" should be considered as a non-limiting terms (i.e. meaning "including, but not limited to,") unless otherwise stated. Specifying ranges of values here is intended to serve as a quick way to individually list each separate value falling within this range, if this is not specified, and each separate value is incorporated into the description, as if it had been listed here individually. All methods described here can be performed in any suitable order, if this is not specified or otherwise contrary to the context. The use of any and all examples, or exemplary expressions (EmOC is emer, "such as")provided here is intended merely to better illuminate the invention and does not impose restrictions on the scope of the invention unless stated otherwise. No expressions in the description should not be construed to indicate any claimed element as essential to the practical implementation of the invention.

1. Curing radiation, the composition of the secondary coating, and said composition comprises:
A) a mixture of oligomers of the secondary coating, which is mixed with
B) a first monomer-diluent;
C) a second monomer-diluent;
D) optionally a third monomer-diluent;
(E) an antioxidant;
F) the first photoinitiator;
G) a second photoinitiator; and
H) does not necessarily improve the slip additive or a blend of improving slip additives;
these mixture of oligomers secondary coating contains:
α) omega-oligomer; and
β) Upsilon-oligomer;
and mentioned the omega oligomer synthesized by the reaction:
α1) hydroxyl-containing (meth)acrylate;
α2) isocyanate;
α3) simple polyetherpolyols; and
α4) tripropyleneglycol; in the presence of
α5) inhibitor of polymerization; and
α6) catalyst;
obtaining omega-oligomer;
these catalyst selected from the group consisting of copper naphthenate, cobalt naphthenate, zinc naphthenate, treat the Lamin, triethylenediamine, 2-methyldiethanolamine, dilaurate dibutylamine, carboxylates of metals, sulfonic acid catalysts based on amines or organic bases, alkoxides of zirconium and titanium, and ionic liquid phosphonium salts of imidazole and pyridinium; and
these Upsilon-oligomer is epoxidized.

2. The method of coating an optical fiber, which includes:
a) column extraction of glass with receiving optical fiber;
b) coating on said optical fiber radiation-curable composition of the primary coating;
c) optional communication mentioned radiation-curable composition of the primary coating with radiation for curing of the coating;
d) coating on said optical fiber radiation-curable composition of the secondary coating according to claim 1; and
(e) contacting mentioned radiation-curable composition of the secondary coating to radiation to cure the coating.

3. The method according to claim 2, in which the work mentioned column extraction of glass is performed with a linear speed between 750 m/min and 2100 m/min

4. The wire is covered with the first and second layer and the first layer is utverjdenie radiation curable primary coating that is in contact with the external surface is rnostly wire, and the second layer is utverjdenie radiation curable secondary coating according to claim 1, in contact with the outer surface of the primary coating,
this utverjdenie secondary coating on the wire has the following properties after initial cure and after one month aging at 85°C and a relative humidity of 85%:
A) A % RAU of from 80% to 98%;
B) in-situ modulus of between 0,60 GPA 1.90 GPA; and
C) Twithtubes from 50°C to 80°C.

5. The optical fiber coated with the first and second layer and the first layer is utverjdenie radiation curable primary coating that is in contact with the outer surface of the optical fiber and the second layer is utverjdenie radiation curable secondary coating according to claim 1, in contact with the outer surface of the primary coating,
this utverjdenie secondary coating on the optical fiber has the following properties after initial cure and after one month aging at 85°C and a relative humidity of 85%:
A) A % RAU of from 80% to 98%;
B) in-situ modulus of between 0,60 GPA 1.90 GPA; and
C) Twithtubes from 50°C to 80°C.

6. Curable by radiation of the secondary coating according to claim 1, in which said third diluent.



 

Same patents:

FIELD: chemistry.

SUBSTANCE: radiation-curable primary coating composition contains an oligomer, a diluent monomer; a photoinitiator; an antioxidant; and an adhesion promoter; wherein said oligomer is the reaction product of: a hydroxyethyl acrylate; an aromatic isocyanate; an aliphatic isocyanate; a polyol; a catalyst; and an inhibitor. Said oligomer has number-average molecular weight ranging from at least 4000 g/mol to less than or equal to 15000 g/mol; and wherein said catalyst is selected from a group comprising dibutyl tin dilaurate; metal carboxylates, sulphonic acids; catalysts based on amines or organic bases, zirconium and titanium alkoxides and ionic liquid salts of phosphonium, imidazolium and pyridinium.

EFFECT: obtaining a hardened film of said radiation-curable primary coating composition.

6 cl

FIELD: chemistry.

SUBSTANCE: invention relates to compositions for protective coating for window glass. The invention discloses a composition which contains a) one or more film-forming resins which contain acrylic and/or methacrylic functional fragments; b) one or more reactive diluents which contain an acrylate functional group; c) one or more compounds which promote adhesion of the composition to glass, which contain a product of a Michael reaction, having four or more siloxane groups, at least one acrylate group and a tertiary amine group; d) one or more filler substances, capable of endowing compositions with wear-resistance in solidified state; and e) one or more compounds which can react with a film-forming resin, which contain at least one acid fragment.

EFFECT: composition ensures high adhesion of the coating to adhesive substances on a structure in the absence of an undercoat.

16 cl, 5 dwg, 28 tbl, 38 ex

FIELD: chemistry.

SUBSTANCE: invention relates to processing polyvinyl chloride through dispersion, particularly to production of highly filled adhesive plastisols used in making protective coatings in motor-car construction, as anticorrosion protection of inner surfaces of metal structures. The method of producing highly filled plastisol based on polyvinyl chloride involves successive addition and mixture in a mixer of di(2-ethylhexyl)phthalate, triethylene glycol dimethacrylate, isopropylbenzene hydroperoxide, half of the given amount of kaolin, calcium strearate, polyvinyl chloride and the remaining amount of kaolin. Hexafunctional oligourethane acrylate, diatomite and NGZ-4 phosphate hydraulic fluid are added before adding polyvinyl chloride, and after adding the remaining amount of kaolin, a polysulphide oligomer - liquid thiocol II with weight ratio of SH groups of 1.7-2.6% and molecular weight of 2100 is added.

EFFECT: high degree of restoration of the thixotropic structure, extrusion, fire resistance and tensile strength of the polyvinyl chloride plastisol and the hardened material.

1 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to processing polyvinyl chloride through dispersion, particularly to production of highly filled adhesive plastisols used in making protective coatings in motor-car construction, as anticorrosion protection of inner surfaces of metal structures. The method of producing highly filled plastisol based on polyvinyl chloride involves successive addition and mixture in a mixer of di(2-ethylhexyl)phthalate, isopropylbenzene hydroperoxide, half of the given amount of kaolin, calcium strearate, polyvinyl chloride and the remaining amount of kaolin. Hexafunctional oligourethane acrylate, diatomite and NGZ-4 phosphate hydraulic fluid are added before adding polyvinyl chloride, and after adding the remaining amount of kaolin, a polysulphide oligomer - liquid thiocol II with weight ratio of SH groups of 1.7-2.6% and molecular weight of 2100 is added.

EFFECT: high degree of restoration of the thixotropic structure, extrusion, fire resistance and tensile strength of the polyvinyl chloride plastisol and the hardened material.

1 tbl

FIELD: chemistry.

SUBSTANCE: invention concerns method of obtaining polyurethanedi(met)acrylates applicable as binders for powder coatings applied on metal substrates, plastic parts, fiber-reinforced plastic parts. Polyurethanedi(met)acrylates are obtained by interaction of diisocyanate component, diol component and hydroxy-C2-C4-alkyl(met)acrylate at mol ratio of x:(x-1):2, where x takes any value from 2 to 5. 1,6-hexanediisocyanate comprises 50 to 80 mol % of diisocyanate component, and one or two diisocyanates selected out of defined diisocyanate group where mol content of respective diisocyanates amount to 100 mol % comprise(s) 20 to 50 mol %, so that each diisocyanate comprises at least 10 mol % of diisocyanate component. Diol component includes not more than four different diols, and at least one linear aliphatic alpha, omega-C2-C12-diol comprises 20 to 100 mol % of diol component, while at least one (cyclo)aliphatic diol different from linear aliphatic alpha, omega-C2-C12-diols comprises 0 to 80 mol %. Each diol of the diol component comprises at least 10 mol % of diol component, and mol content or respective diols amounts to 100 mol %. Due to the absence of solvent in polyurethanedi(met)acrylate production, further cleaning of end product is not required, thus increasing process product output.

EFFECT: higher acid resistance of coating films applied and solidified with the use of powder coatings containing claimed polyurethanedi(met)acrylates.

6 cl, 15 ex, 3 tbl

FIELD: chemistry.

SUBSTANCE: powdered coating agent contains solid particles of a resin-polyurathane binding substance with equivalent mass of olefinic double bonds ranging from 200 to 2000 and content of silicon bonded in alkoxy silane groups ranging from 1 to 10 mass % and a photoinitiator. In the method of obtaining a single layered or multilayered coating on substrates, in particular when obtaining multilayered coating for transportation equipment and their components (car body or car body components coating), at least one layer of this coating is deposited from a powdered coating agent. In that case, solidification of at least one layer of the above mentioned powdered coating is achieved through free-radical polymerisation of olefinic double bonds when irradiated with high energy radiation and through formation of siloxane atomic bridges under the effect of moisture.

EFFECT: obtaining a powdered coating, which is hard, has scratch resistance and good resistance to chemical effects.

8 cl, 1 tbl

FIELD: chemistry.

SUBSTANCE: aqueous composition for coatings has a rapid curing mechanism and allows cross-linking of poorly illuminated areas, the composition comprising (I) at least one polyisocyanate (A), (II) at least one polyurethane (B) containing from 0 to 0.53 mmole/g of active, according to Tserevitinov, hydrogen atoms and being a product of reaction of: (a) one or several polyisocyanates, (b1) one or more compounds with hydrophilising action having ion groups and/or groups transferable to ion groups, and/or non-ionic groups, (b2) one or more compounds capable of radical polymerisation and including unsaturated acrylate or methacrylate groups, (b3) if necessary, one or more polyols with an average molecular weight of 50-500 and a hydroxyl functionality more than or equal to 2 and less than or equal to 3, (b4) if necessary, one or more polyols with an average molecular weight of 500 to 13,000 g/mole and an average hydroxyl functionality of 1.5 to 2.5, and (b5) if necessary, one or more di- or polyamines, and (III) an initiator (C).

EFFECT: capable to cross-link poorly illuminated areas and to cause radical polymerisation.

8 cl, 15 ex, 8 tbl

FIELD: powder covers.

SUBSTANCE: invention relates to a powder cover composition and to a method for its preparing that forms cover with reduced luster after hardening. Composition comprises one or some cross-linked basic polymers: cross-linked polyester, cross-linked polyurethane, cross-linked acrylated polyether and their combinations, about from 5 to 60 wt.-%; cross-linked acrylic polymer with solidification point about from 40°C to 100°C, and about 0.1 to 10 wt.-% of one or some free-radical initiating agents. Additional reducing luster and improved smoothness can be obtained by addition spheroidal particles to the powder cover composition. Proposed compositions can be used for making covers on metallic backings, such as vehicle bodies and on nonmetallic backings, such as backings made of pressed wood materials with impregnation used for making table tops of different species.

EFFECT: improved and valuable properties of covers.

21 cl, 4 tbl

FIELD: polymers, covering compositions.

SUBSTANCE: invention relates to photoactivating aqueous-base covering composition. The proposed composition comprises the following components: a)(meth)acryloyl-functional polyurethane dispersion wherein this (meth)acryloyl-functional polyurethane comprises from 5 to 18 weight % of alkylene-oxide groups and (meth)acryloyl functionality represents a value in the range from 2 to 40, and b) UV-initiating agent. The presence of reactive diluting agent in the covering composition is preferable. (Meth)acryloyl-functional polyurethane can be prepared by carrying out the following interactions: a) at least one organic polyisocyanate; b) optionally, at least one organic compound comprising at least two isocyanate-reactive groups and having an average molecular mass in the range from 400 to 6000 Da; c) at least one isocyanate-reactive and/or isocyanate-functional compound comprising non-ionogenic dispersing groups; d) at least one isocyanate-reactive (meth)acryloyl-functional compound; e) optionally, at least one chain elongating agent comprising active hydrogen, and f) optionally, at least one compound comprising active hydrogen and ionic groups. Aqueous-base covering composition is useful especially for applying as a clear cover. Covers based on the proposed composition show resistance to water, solvents and scratches and flexibility and high adhesion also.

EFFECT: improved and valuable properties of composition.

15 cl, 12 tbl, 17 ex

The invention relates to compositions based on emulsified resins, curable by ultraviolet radiation, which includes: unmodified oligomers as the basis of composition, which determines the final properties of the cured product; curing agents consisting of polyfunctional monomers; photoinitiator initiating polymerization; additives to make the product special properties

FIELD: chemistry.

SUBSTANCE: radiation-curable primary coating composition contains an oligomer, a diluent monomer; a photoinitiator; an antioxidant; and an adhesion promoter; wherein said oligomer is the reaction product of: a hydroxyethyl acrylate; an aromatic isocyanate; an aliphatic isocyanate; a polyol; a catalyst; and an inhibitor. Said oligomer has number-average molecular weight ranging from at least 4000 g/mol to less than or equal to 15000 g/mol; and wherein said catalyst is selected from a group comprising dibutyl tin dilaurate; metal carboxylates, sulphonic acids; catalysts based on amines or organic bases, zirconium and titanium alkoxides and ionic liquid salts of phosphonium, imidazolium and pyridinium.

EFFECT: obtaining a hardened film of said radiation-curable primary coating composition.

6 cl

Coating composition // 2434909

FIELD: chemistry.

SUBSTANCE: coating composition contains oligobutadiene diol, mineral filler, trifunctional low molecular weight alcohol, polyisocyanate, urethane-formation catalyst and 2,4,6-tri-tertbutylphenol. The mineral filler additionally contains multifunctional filler which is a mixture of chemically co-deposited calcium carbonate and magnesium hydroxide.

EFFECT: obtaining coatings with improved dynamic and physical and mechanical properties.

2 tbl

Coating composition // 2433155

FIELD: chemistry.

SUBSTANCE: coating composition as a base contains hydroxyl-containing polybutadiene rubber with a microstructure, %: 1,-4-trans 10-15 and 1,2-links 85-90, molecular weight 1250-3200 and content of hydroxyl groups 0.82-2.36%, isocyanate curing agent, polyisocyanate, urethane-formation catalyst and an additional mixture of isomers of 3,5-dimethylthio-2,4- toluylenediamine and 3,5-dimethylthio-2,6-toluylenediamine in ratio of 75.5-81:18-20 or a mixture of 3,5-diethyl-2,4-toluylenediamine and 3,5-diethyl-2,6-toluylenediamine in ratio of 75.5-81:18-20.

EFFECT: high strength of the coating.

1 tbl

FIELD: construction.

SUBSTANCE: composition for sporting surfaces includes oligobutadienediol, a plasticiser, a mineral filler, trifunctional low-molecular alcohol, polymethylene polyphenylene polyisocyanate with content of isocyanate groups 29.5-31.0%, tin-organic catalyst, 2,4,6-tri-tretbutylphenol, polysulfide oligomer, isocyanate prepolymer, aromatic diamine, which is a mixture of 2,4- and 2,6-isomers of 3,5-dimethyl thiotoluyelene diamine at the ratio of 80:20, diatomite and technical carbon P-803.

EFFECT: improved dynamic and physical-mechanical parameters of surfaces.

2 tbl

FIELD: chemistry.

SUBSTANCE: composition for sports coatings contains oligobutadiene diol, a plasticiser, mineral filler, trifunctional low-molecular alcohol, polymethylene polyphenylene polyisocyanate with 29.5-31.0% content of isocyanate groups, an organotin catalyst, 2,4,6-tri-tertbutylphenol, polysulphide oligomer, isocynate prepolymer, aromatic diamine which is a mixture of 2,4- and 2,6-isomers of 3,5-dimethylthiotoluylenediamine in ratio of 80:20 and diatomite, technical carbon P-803 and light ageing stabiliser 2-(3'-tertbutyl-2'-hydroxy-5'-methylphenyl)-5-chlorobenzotriazole.

EFFECT: improved dynamic and physical-mechanical properties of coatings.

2 tbl

FIELD: chemistry.

SUBSTANCE: composition for sports coatings contains oligobutadiene diol, a plasticiser, mineral filler, trifunctional low-molecular alcohol, polymethylene polyphenylene polyisocyanate with 29.5-31.0% content of isocyanate groups, an organotin catalyst, 2,4,6-tri-tertbutylphenol, polysulphide oligomer, isocynate prepolymer, aromatic diamine which is a mixture of 2,4- and 2,6-isomers of 3,5-dimethylthiotoluylenediamine in ratio of 80:20 and diatomite, technical carbon P-803 and light ageing stabiliser 2-(2'-hydroxy-3',5'-diisopentylphenyl)benzatriazole.

EFFECT: improved dynamic and physical-mechanical properties of coatings.

2 tbl

FIELD: chemistry.

SUBSTANCE: composition for sports coatings contains oligobutadiene diol, a plasticiser, mineral filler, trifunctional low-molecular alcohol, polymethylene polyphenylene polyisocyanate with 29.5-31.0% content of isocyanate groups, an organotin catalyst, 2,4,6-tri-tertbutylphenol, polysulphide oligomer, isocynate prepolymer, aromatic diamine which is a mixture of 2,4- and 2,6-isomers of 3,5-dimethylthiotoluylenediamine in ratio of 80:20 and diatomite.

EFFECT: improved dynamic and physical-mechanical properties of coatings.

2 tbl

FIELD: chemistry.

SUBSTANCE: composition contains the following in pts.wt: 100 - copolymer of butadiene and piperylene with molecular weight 1200-3200 and content of hydroxyl groups 0.8-1.1%, 20-polymethylene polyphenyl isocyanate with content of isocyanate groups 29-31%, 70-100 - rubber crumbs, and 25-20 - high-molecular polyethylene with molecular weight 30000-800000.

EFFECT: high dynamic and physical-mechanical properties of the composition based on the filled foamed polyurethane.

1 ex, 2 tbl

Polymer composition // 2421495

FIELD: chemistry.

SUBSTANCE: composition contains isocyanate hardener, urethane-formation catalyst, a rubber base and a mixture of 2,4 and 2,6-isomers of 3,5-dimethylthiotoluylene diamine. The rubber base contains low-molecular hydroxyl-containing rubber, a plasticiser, filler, an antiageing agent and a pigment. The isocynate hardener is a prepolymer obtained by reacting 4,4'-diphenylmethane diisocayanate and oligodiene diol with molecular weight 2000-2200, content of hydroxyl groups of 1.2-1.9% with the ratio of isocyanate to hydroxl groups equal to 2:1 with content of isocyanate groups in the prepolymer equal to 4-5%.

EFFECT: obtaining coatings with high strength, hardness and elasticity.

6 cl, 2 dwg, 2 tbl

Polymer composition // 2421494

FIELD: chemistry.

SUBSTANCE: composition contains an isocynate hardener, urethane-formation catalyst, a rubber base and glycerin. The rubber base contains low-molecular hydroxyl-containing rubber, a plasticiser, filler, an antiageing agent and a pigment. The isocynate hardener is a prepolymer obtained by reacting 4,4'-diphenylmethane diisocayanate and oligodiene diol with molecular weight 2000-2200, content of hydroxyl groups of 1.2-1.9% with the ratio of isocyanate to hydroxl groups equal to 2:1 with content of isocyanate groups in the prepolymer equal to 4-5%.

EFFECT: composition enables to obtain coatings with high strength, hardness and elasticity.

6 cl, 2 tbl

FIELD: chemistry.

SUBSTANCE: radiation-curable primary coating composition contains an oligomer, a diluent monomer; a photoinitiator; an antioxidant; and an adhesion promoter; wherein said oligomer is the reaction product of: a hydroxyethyl acrylate; an aromatic isocyanate; an aliphatic isocyanate; a polyol; a catalyst; and an inhibitor. Said oligomer has number-average molecular weight ranging from at least 4000 g/mol to less than or equal to 15000 g/mol; and wherein said catalyst is selected from a group comprising dibutyl tin dilaurate; metal carboxylates, sulphonic acids; catalysts based on amines or organic bases, zirconium and titanium alkoxides and ionic liquid salts of phosphonium, imidazolium and pyridinium.

EFFECT: obtaining a hardened film of said radiation-curable primary coating composition.

6 cl

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