Coating composition comprising compound with bicyclo-ortho-ester functional groups, compound with isocyanate functional groups, and compound with thiol functional groups

FIELD: protective coatings.

SUBSTANCE: invention provides coating composition comprising first compound containing at least one bicyclo-ortho-ester functional group, second compound containing at least two isocyanate groups, and third compound containing at least one thiol group.

EFFECT: enlarged assortment of coatings.

19 cl, 10 tbl, 30 ex

 

The present invention relates to a composition for coating comprising a first compound containing at least one bicyclo-ortho-ester group and a second compound containing at least two isocyanate groups.

The above-mentioned composition for coatings known from WO 97/31073. Found that when using such a composition for applying a transparent coating on some substrates foaming is observed at relatively small thickness of the film.

The present invention relates to the composition of the aforementioned type that does not have this drawback. For this reason, the composition for coatings mentioned in the opening paragraph, characterized in that it comprises a third compound containing at least one Tilney group.

The use of compounds with thiol functional groups in the composition for coating of the present invention provides coatings with little or no foaming and film thickness up to at least about 60 μm defect-free film. This thickness of the coating layer constituting at least about 60 microns, will lead to such properties, which are known to specialists in this field, is preferred for the transparent coating, such as a good protection of the underlying layer(s) of the coating, gloss, hardness. Cu is IU, composition for coating of the present invention have a low amount of VOC, good attitude viability to the drying time, reduced influx of composition for coating on a substrate and a high capacity to increase thickness.

Composition for coating comprising a compound containing at least one bicyclo-ortho-ester group (bicyclo-ortho-ester or shortly denoted as BOÉ), represents a composition containing hidden hydroxyl group. In the presence of water or moisture in the air group BOÉ will be either hydrolyzed with the formation of hydroxyl groups. This reaction is also known as the release. In the release process is allocated a small number or not stands out quite volatile components. When BOÉ group is released so it is impossible to obtain a homopolymer BOÉ groups by cationic polymerization. However, the released hydroxyl group can interact with the isocyanate groups of the second connection with the formation of Poperechnaya polymer.

U.S. patent 4788083 discloses a composition for coating comprising a mixture of polyol and MDI and a molar excess of the compound with a thiol functional groups in relation to the catalyst based on tin compounds. Under molar excess means that the cat is the lyst-based compounds tin add a sufficient number of compounds with thiol functional groups, to be viable in an open vessel polyol-polyisocyanate mixture was at least twice the viability of the same mixture containing only the catalyst based on tin compounds.

Unexpectedly, it was found that the presence of compounds with thiol functional groups in the composition for coating of the present invention does not increase viability at all, but actually reduces it. Moreover, the speed of cross-linkage composition for coating of the present invention is the same as that of the composition for coating, which does not contain compounds with thiol functional groups. And yet there is a decrease in foaming when the composition for coating of the present invention.

Under BOÉ groups include groups having a structure according to formula I

in which

X and Z may be the same or different and selected from linear or branched ALK(EN)yanovych groups with 1-4 carbon atoms, optionally containing oxygen atom or nitrogen;

Y not mean anything or selected independently of X and Z from linear or branched ALK(EN)yanovych groups with 1-4 carbon atoms, optionally containing oxygen atom or nitrogen;

R1and R2may be the same Il is different and selected from the group

monovalent radicals comprising hydrogen, hydroxyl, ALK(EN)ilen group containing 1-30 carbon atoms, whereby these groups can be linear or branched and may optionally contain one or more heteroatoms and groups, selected from among groups such as oxygen, nitrogen, sulfur, phosphorus, sulfon, sulfoxy and ester, optionally substituted epoxypropoxy, cyano, amino, thiol, hydroxyl, halogen, a nitro-group, phosphorus, sulfoxylates, amido, ether groups, complex ether groups, urea, urethane, thioester complex, thioamide, amide, carboxyl, carbonyl, aryl and acyl groups, and

divalent radicals, including

ALK(EN)renovia group containing 1-10 carbon atoms, whereby these groups can be linear or branched and may optionally contain one or more heteroatoms or groups selected from among groups such as oxygen, nitrogen, sulfur, phosphorus, sulfon, sulfoxy, and ester, optionally substituted epoxypropoxy, cyano, amido, thiol, hydroxyl, halogen, a nitro-group, phosphorus, sulfoxylates, amido, simple ester group, a complex ester group, a urea, urethane, sluinotify, thioamide, amide, carboxyl, carbonyl, aryl and acyl groups the mi; ester groups; ether groups; amide groups; complex thioester group; thioamide group, urethane group, urea group, and a simple single connection.

Preferably X, Y and Z represent methylene. R1and R2in this case, connected with the formation of 2,6,7-dioxabicyclo[2.2.2]octane moiety. In the case where both of the radical R1and R2represent monovalent radicals, BOÉ group, as defined by formula I, is the same as in connection with BOÉ functional group. Monovalent radicals R1and R2may be the same or different and are preferably selected from the group comprising hydrogen, hydroxyl, and linear or branched ALK(EN)ilen group containing 1-20 carbon atoms, optionally substituted by one or more hydroxyl groups and optionally containing an ester group. Examples of such groups are: methyl, methylol, ethyl, Atila, propyl, propylon, butyl, pentyl, hexyl, heptyl, octyl, nonyl, decyl, undecyl, -CH2-CH2-O-CO1-20ALK(EN)ilen group, and mixtures thereof.

Preferably R1means a linear or branched ALK(EN)yl, containing 1-20 carbon atoms, optionally substituted by hydroxyl, whereas R2means methyl or ethyl. Conversely, R1can mean methyl, ethyl, PR is drank, butyl, pentyl, hexyl, heptyl, octyl, nonyl, decyl, undecyl and their mixtures, whereas R2may indicate matilal, ethyl, atilol or-CH2-CH2-O-CO1-20-ALK(EN)ilen group.

When one or both of R1or R2groups selected divalent moiety that can form high-molecular compounds with BOÉ functional groups. They can represent adducts or polymers, including several BOÉ groups. Thus, two BOÉ group can form adduct when choosing a monovalent radical to one of the two R1and R2groups and divalent radical to another. BOÉ groups will then be connected together through a divalent radical. BOÉ group can also be linked via a divalent radicals to Monomeric or oligomeric compounds. Such compounds with BOÉ functional groups are described, for example, in the above U.S. patent 4338240. For example, two BOÉ groups can be attached to a dimeric fatty acid, for example, Pripol 1009 from Unichema. Conversely, in the above configuration BOÉ group can act as side groups or end groups in the polymer chain. The polymers can be, for example, polyesters, polyethers, polyacrylates, polyamides or polyurethanes. When divalent radical represents a single bond, BOÉ of gruppeprisoedinilas directly to the polymer. When both R1and R2groups are divalent, BOÉ group can be introduced into the main chain of the polymer or they may serve to connect two polymer chains together. Preferably one or both of R1and R2group selected from the group comprising ester, a simple ester, urethane, simple communication and ALK(EN)renovia group containing 1-10 carbon atoms, which may be linear or branched and may contain one or more ester, ether or urethane groups.

In addition to the connection with BOÉ-functional groups composition for coating of the present invention includes a second compound containing at least two isocyanate groups. Examples of compounds comprising at least two isocyanate groups are aliphatic, alicyclic and aromatic polyisocyanates, such as trimethylenediamine, 1,2-propylenediene, tetramethyldisilane,

2,3-butylenediamine, hexamethylenediisocyanate,

octamethyltrisiloxane, 2,4-trimethylhexamethylenediamine,

2,4,4-trimethylhexamethylenediamine, dodecyltrimethoxysilane,

α,α'-dipropionyl simple ether diisocyanate,

1,3-cyclopentanedione, 1,2-cyclohexanedimethanol,

1,4-cyclohexanediethanol,

4-methyl-1,3-cyclohexanediol the NAT,

4,4'-dicyclohexylthiourea,

3,3'-dimethyl-4,4'-dicyclohexylthiourea, m - and

n-delete the entry, 1,3 - and 1,4-bis(isocyanatomethyl)benzene,

1,5-dimethyl-2,4-bis(isocyanatomethyl)benzene,

1,3,5-triisocyanate, 2,4 - and 2,6-colorvision,

2,4,6-colortransparent, α,α,α',α'-tetramethyl o-, m - and

p-cialisdiscount, 4,4'-diphenyldiisocyanate,

4,4'-diphenyldiisocyanate,

3,3'-dichloro-4,4'-diphenyldiisocyanate,

naphthalene-1,5-diisocyanate, isophoronediisocyanate and

transdenominational and mixtures of the above

polyisocyanates.

In addition, such compounds may represent adducts of polyisocyanates, for example, biuret, isocyanurate, allophanate, uretdione and mixtures thereof. Examples of such adducts is the adduct of two molecules of hexamethylenediisocyanate or isophorondiisocyanate with diola, such as ethylene glycol, the adduct of 3 molecules of hexamethylenediisocyanate with 1 molecule of water, the adduct of 1-th molecule of trimethylolpropane with 3 molecules of isophorondiisocyanate, adduct 1 molecule pentaerythritol with 4 molecules colordistance, isocyanurate of hexamethylenediisocyanate, available from Bayer under Torgovyi trademark Desmodur® N3390 and Desmodur® N3600, uretdione of hexamethylenediisocyanate, available from Bayer under the trademark Desmodur® N3400, allophanate exam the televiziunea, available from Bayer under the trademark Desmodur® LS2101, and isocyanurate isophorondiisocyanate available from the company Hbls under the trade name Vestanat® T1890E. Also suitable for use are (co)polymers of monomers with functional isocyanate groups, such as α,α'-dimethyl-m-isopropylbenzenesulfonyl. In the end, the above-mentioned isocyanates and adducts may be present in the form of blocked isocyanates, what is known specialists in this field.

In addition to compounds with functional BOÉ-groups and a polyisocyanate compound composition for coating according to the invention includes a third compound containing at least one Tilney group. Preferably the connection with functional Tilney group contains at least two tirinya group. In addition Tilney group the third compound may also contain other reactive groups such as hydroxyl and carboxyl groups. Compounds with thiol functional groups is described in U.S. patent 4788083, which is included in this description by reference. Examples of third compounds containing at least one Tilney group include dodecylmercaptan, mercaptoethanol, 1,3-propanedithiol, 1,6-hexanedithiol, methylthiophenol, 2-mercaptohexanol acid, esters of 2-measurement is tokunou acid, 3-mercaptopropionic acid, esters of 3-mercaptopropionic acid, 2-mercaptopropionic acid, esters of 2-mercaptopropionic acid, 11-mercaptoundecanoic acid and esters of 11-mercaptoundecanoic acid. Esters can be formed by all types of compounds with functional hydroxyl groups, oligomers and polymers. Preferably use trimethylolpropane three(3 mercaptopropionate) and pentaerythritol tetrakis(3-mercaptopropionate).

In another embodiment, the compound comprising at least one Tilney group can have, for example, the structure according to the following formula:

T[(C3H6O)nCH2CHOHCH2SH]3where T means triol such as trimethylolpropane, or glycerol, and n is 1-100. An example of such a compound is commercially available from the company Cognis product under the trademark Capcure® 3/800.

Connection with thiol functional groups is used in an amount of from 0.1 to 10 wt.%, preferably from 0.5 to 5 wt.%, more preferably in an amount of from 1 to 3 wt.% in relation to the number of connections BOÉ-functional groups.

In addition to the disclosed compounds with BOÉ functional groups solentiname functional groups and thiol functional groups in the composition for coatings according to nastasemarian may be other compounds. Such connections may be the main binder and/or reactive diluents, including reactive group which can undergo cross-linking under the influence of the aforementioned compounds with functional hydroxyl, thiol and/or isocyanate groups. Examples include binders with functional hydroxyl groups, for example, a complex polyether polyols such as described in the book H.Wagner c et al., Lackkunstharze, 5th ed., 1971 (Carl Hanser Verlag, Munich), simple polyether polyols polyacrylonitrile, poliuretanoviy, acetobutyrate cellulose, epoxy resin with a hydroxyl functional groups, Alcide and centromere polyols such as described in WO 93/17060. In addition, there may be oligomers and monomers with hydroxyl functional groups, such as castor oil and trimethylolpropane. In the end, may be present ketone resins, esters of aspergillomas acids and compounds with hidden or not hidden functional amino groups, such as oxazolidone, catimini, aldimine, diimine, secondary amines and polyamine. These and other compounds known to specialists in this area and mentioned among others in U.S. patent 5214086.

The ratio of isocyanate groups to hydroxyl and tilenum groups lies in the range from 50 to 300 equiv.% preferably from 70 to 20 EQ.%.

The invention further includes a method of cross-linkage composition for coating of the present invention. In particular, hidden hydroxyl group BOÉ-functional compounds must be released and the formed hydroxyl group and already present tirinya groups should interact with the isocyanate groups of the second compound to provide a cross-linking composition for coating of the present invention.

The release of latent hydroxyl groups BOÉ-compounds occurs under the action of water in the form of, for example, moisture in the air or water added. This release is preferably catalyzed by a first catalyst selected from the group of Lewis acids, such as AlCl3, SbCl5BF3, BCl3, BeCl2, FeCl3, FeBr3, SnCl4, TiCl4, ZnCl2and ZrCl4and their complexes, for example BF3Et2O, BF5-2CH3COOH, BF3-2H2O, BF3-H3PO4BF3-(CH3)2O, BF3-THF, BF3-2CH3OH, BF3-2C2H5OH and BF3-C6H5CH2and acids Branstad. Preferably use acid Bronsted having a pKa<3, such as mono - or dialkylphosphate, carboxylic acids containing at least one atom of chlorine and/or fluorine, alkyl or arylsulfonate KIS the PTA or (alkyl)phosphoric acid, more preferably methanesulfonate acid, para-toluensulfonate acid, optionally substituted naphthalenesulfonate acid, dodecylbenzenesulfonic acid, dibutylester, trichloroacetic acid, phosphoric acid and mixtures thereof.

The first catalyst may be blocked, if this is desirable, which leads to the separation of the Lewis acid or Bronsted under the action of, for example, electromagnetic radiation (light or UV), heat or moisture. Forming the acid photoinitiator described also in the book G.Li Bassi et al., "Photoinitiators for the Simultaneous Generation of Free Radicals and Acid Hardening Catalysts", Radcure '86 Proceedings, for example, 2-methyl-1-[4-(methylthio)phenyl]-2-[4-methylphenylsulphonyl] propane-1-he (MDT) from Fratelli Lamberti Spa, Varese, Italy. Conversely, there can be used compounds, forming a Lewis acid such as Irgacure® 261 from Ciba Geigy and complex trimethylbenzenesulfonyl ether.

The first catalyst may be used alone or in a mixture of catalysts in effective amounts. In principle, would be sufficient to hydrolysis, at least part of the connection BOÉ-functional groups. Enough can be the amount of the first catalyst relative to compounds with BOÉ-functional groups from 0 to 10 wt.%. Will contain preferably from 0.3 to 8 wt.%, more preferably from 0.5 to 6 mA is.%.

The interaction of the released hydroxyl groups of compounds with BOÉ functional groups, isocyanate groups of the second compound and the thiol groups of the third connection preferably takes place under the action of the second catalyst. Such catalysts are well-known experts in this field. The second catalyst is used in amounts of from 0 to 10 wt.%, preferably from 0.001 to 5 wt.%, more preferably in quantities of from 0.01 to 1 wt.% calculated on the dry matter (i.e. the number of connections BOÉ functional groups, compounds with isocyanate functional groups, compounds with thiol functional groups and optionally other compounds containing reactive group).

Examples of the second catalyst include dimethylvaleric tin, dibutylthiourea tin, dibutylthiourea tin, octoate tin, octoate zinc chelate of aluminum and dimethylvaleric tin.

Composition for coating according to the invention may be part of a composite system, such as may be used a three-component system. For example, one component may include a connection to BOÉ-functional groups and a compound with a thiol functional groups. The second component may include a connection with the isocyanate functional groups. The third component may on the part of the catalyst for the hydrolysis of compounds with BOÉ-functional groups. Preferably the first component also includes a catalyst for interaction between isocyanate and relatively reactive isocyanate groups.

More preferred is a three-component system, in which the first component may include a connection to BOÉ-functional groups, the second component may include a connection with the isocyanate functional groups and the third component may include a catalyst for the hydrolysis of compounds with BOÉ-functional groups and a compound with a thiol functional groups. Preferably the first component also includes a catalyst for interaction between isocyanate and relatively reactive isocyanate groups.

Conversely, the composition of the coating may be part of a four-part system in which the first component may include a connection to BOÉ-functional groups, the second component may include a connection with the isocyanate functional groups and the third component may include a catalyst for the hydrolysis of compounds with BOÉ-functional groups, and the fourth component includes a connection with thiol functional groups. The catalyst interaction isocyanate and reactive relative to the isocyanate groups may be present in the first, second, third or fourth component.

In addition to t the th, such a composition for coating, as described, can contain conventional additives, such as solvents, pigments, fillers, leveling agents, emulsifiers, defoamers and rheology modifiers, reducing agents, antioxidants, HALS stabilizers, UV stabilizers, water trap, such as molecular sieves, and agents that prevent the delamination of the mixture.

Coating the substrate can be carried out by any method known to specialists in this field, for example by rolling, spraying, kstewangel, pouring, dipping and rolling. Preferably the composition for coating, such as described above, is applied by spraying.

Composition for coating of the present invention can be applied to any substrate. The substrate may be, for example, metal, such as iron, steel and aluminum, plastic, wood, glass, synthetic material, paper, leather or other coating layer. Another coating layer may include a composition for coating of the present invention, or it may be a different composition for coating. Composition for coating of the present invention is particularly distinguished by the fact that they can be used for transparent coatings (top basic coatings, water-based and solvent-based), basic coatings, pigmented ve is hnic coatings, primers and fillers. The composition is particularly suitable for use as polishing agents for cars & vehicles and for finishing larger vehicles, such as trains, trucks, buses and airplanes.

Applied composition for coating can be overiden very effectively at a temperature of, for example, 0-50°C. If desired, the composition for coating can be overiden, for example, at a temperature in the range of 50-120°C.

Preferred is the use of the composition for coating of the present invention as a transparent coating. Transparent coating must be highly transparent and have good adhesion to the core layer of the coating. It is also necessary that the transparent coating did not change vneshnetorgovye quality primary coverage due to spots, i.e. discoloration of the primary coating as a result of its dissolution composition for sheer coverage, or due to yellowing clear coating under the action of external conditions. The transparent coating composition for coating of the present invention does not have the above disadvantages. If the composition for coating forms a transparent coating, the primary coating may be a conventional primary coating known in the field of coatings. Examples are the main cover on the Snov, solvents, for example, Autobase® from Akzo Nobel Car Refinishes BV, and basic coating, water based, for example, Autowave® from Akzo Nobel Car Refinishes BV. In addition, the primary coating may include pigments (coloured pigments, gas metallizing and/or mother-of-pearl), waxes, solvents, rheology modifiers, neutralizing agents, and defoamers. Additionally, there may be used the main cover with a high content of dry residue. They represent, for example, coatings based on polyols, Iminov and isocyanates. A composition for a transparent coating applied to the surface of the primary coating, and then utverjdayut. Can be included intermediate stage of curing the primary coating.

The invention is explained with the following examples.

In the examples used the following abbreviations:

pentaerythritol tetrakis(3-mercaptopropionate): PENTA (SH)4

trimethylolpropane Tris(3-mercaptopropionate): TMPTMP

dibutyltindilaurate tin: DBTL

dodecylbenzensulfonate acid: DDBSA

amoxicilpin: EUR

amoxicillin/Solvesso 100: EEP/S

In the examples, the following compounds.

Byk 300, Byk 322, Byk 331, Byk Byk 344 and 390 are rheology modifiers from Byk Chemie.

Nacure 5076 represents 70%DDBSA in isopropanol from King Industries.

The FIRST is 4-ethyl-1-(C5-11alkyl)-2,6,7-dioxabicyclo[2.22]octane, obtained according to WO 97/31073, example 6.

Capcure® 3/800 represents the connection with thiol functional groups from the company Cognis.

Tinuvin 1130 is UV stabilizer from the company Ciba-Geigy.Tinuvin 123 is HALS stabilizer from the company Ciba-Geigy.

Solvesso 100 is a mixture of aromatic solvents from Exxon company.

Desmodur® N3300 represents an aliphatic polyisocyanate based isocyanurate of hexamethylenediisocyanate from Bayer.

Vestanat® T1890E represents a cycloaliphatic polyisocyanate based isocyanurate isophorondiisocyanate from the company Hbls.

Unless specifically indicated, all properties of compositions for coatings and films formed is measured as follows.

Viscosity is measured in a DIN Cup for solution number 4 in accordance with DIN 53211-1987. The viscosity is shown in seconds.

The thickness of the dry layer is measured in accordance with ISO 2808.

Examples 1-20 and comparative examples A-J

Three compositions for transparent coatings 1 and 2 and the comparative composition A (SRSA) are obtained according to the recipe shown in table 1, all weights are given in grams. Connection with thiol functional groups contained in the first component.

5.50
Table 1

Compositions for transparent coatings
With the unity Composition 1Part 2Srast.
1The FIRST62,4062,9363.73
Tinuvin 1230.28--
Tinuvin 11300.55--
DBTL (10% in a mixture of butyl acetate/ xylene (1/1))6.296.346.42
EEP/S (1/1)16.0716.2016.41
EUR2.642.652.69
t-butanol (70% in butyl acetate)7.187.247.33
Byk 344 (10% EEP/S (1/1))2.392.412.44
Byk 390 (10% EEP/S (1/1))0.960.970.98
PENTA(SH)41.241.26-
2Desmodur® N330099.5099.5099.50
Vestanat® T1890E78.6078.6078.60
Butyl acetate5.505.50
EUR10.9010.9010.90
Solvesso 1005.505.505.50
3Nacure 50762.002.002.00

Compositions for transparent coatings have the same spray viscosity (18 sec), and are applied using a spray gun HPLV (Devibiss 1.3, the nozzle 110, 2.5 bar) for a few painted the main water-based coatings (Autowave®)that is dried for at least for 15 minutes. A clear coating is applied layers with increasing thickness. The clear coat is dried for 10 minutes at 60°C. the Composition of the basic water-based coatings are obtained with the use of commercially available toners brand Autowave®are listed in table 2A and 2B (the mass is given in grams). The results obtained for transparent coatings are presented in table 3. Indicators of expansion is determined by the minimum thickness of a layer of transparent coating which causes foaming. This parameter is determined visually.

td align="left">  
Table 2A

The compositions of Autowave® main cover
TonersYellow

NISER
Beige. VOL324Red-brown

Vallelunga

P1607:87
Rio Verde

OP369
Silver lunar dust

FEU9352
0999.319.041.19
101355.53
24278.5953.15
253353.85
29684.23
332GA79.9872.53
SSSSAt 41.0542.01
SSSSSAt 101.30
333DF14.93
SSZES28.90
ZZSRW
333PG106.61157.24
333PR
334WB
335
341
358346.02
379252.28
527
533.
537
568
575
579181.2244.11
665287.09398.93781.86
74411.19
777133.24
95221.83343.084.13
955222.58
971
Demi-water
Only924.62921.12931.49922.40917.39

Table 2B

The composition of the primary coating Autowave®
TonersBlue Ming

AULZ5L
Red Marseillebr>
OR:91
White Diamond

FEU411
Purple Kiruna

BMW4684
Black BMW9932
0991039.72
101111.21
242639.28266.75243.79801.07
253
296
332GA
SSSS0.46
SSSSS
333DF
SSZES
ZZSRW68.63Ȋ
333PG58.29
333PR233.44
334WB265.63
33513.13
341110.19
358
3792.12
527244.73
533106.55
53760.23
5683.71
57512.49
579
6653.1
744221.87
777
952
95589.7861.44
97169.95
Demi-water50
Only911.43924.871108.67924.93907.62

td align="center"> 43
Table 3

Determination of foaming systems main floor (OP)/transparent coating (PP)
ColorPM The strata. layer OP (µm)The strata. layer PP (μm)Mentals layer
AndWhite Diamond FEU411YEUR. comp. A3121-27246
1Cost2712-176Not VSP.
2Cost2611-206Not VSP.
InBlack BMW9932EUR. comp. A2525-27634
3Cost2114-202Not VSP
4Cost2312-19683
Purple Kiruna BMW46849EUR. comp. A2317-28131
5Cost2214-21680
6Cost2716-210Not VSP.
DRed Marseille OP549:91EUR. comp. A2113-26635
7Cost 3010-179145
8Cost2416-203149
EBlue Ming AULZ5LEUR. Costa2526-25241
9Cost2421-161144
10Cost2024-17894
FSilver lunar dust FEU9352EUR. Costa3012-28338
11Cost2910-188135
12Cost3213-191146
GRio Verde OP369EUR. Costa2720-27836
13Cost3515-19985
14Cost3824-17390
NRed-brown Vallelunga P1607:87EUR. Costa1820-275
15Cost2717-172135
16Cost2618-16986
IBisrepetita VOL324EUR. Costa2927-23741
17Cost3017-16790
18Cost3126-19679
JYellow NISER3EUR. Costa2416-24746
19Cost3019-16275
20Cost3316-20377
Task = layer thickness

Min. task. = minimum thickness of the layer at which to observe the occurrence of foaming.

The presented results clearly show that the addition of PENTA(SH)4to the composition for a transparent coating reduces foaming of this transparent coating in a wide range of colors of the primary coating. HALS and UV stabilizers is not affected n is the tendency to foaming. All transparent cover otverzhdajutsja enough after 10 minutes at 60°and show good resistance to solvents.

Examples 21-24 and comparative examples K-N

Three-component composition to obtain a transparent cover 3 and the comparative composition (Srsv) is prepared according to a formulation shown in table 4, all weights are given in grams. Connection with thiol functional groups contained in the first component.

Table 4

Compositions for transparent coating
ConnectionCompositionSrsv
1The FIRST64.3565.18
Tinuvin 1230.290.29
Tinuvin 11300.570.58
Byk 3220.570.58
DBTL (10% in a mixture of butyl acetate/ xylene (1/1))6.496.57
EEP/S (1/1)16.5616.78
Byk 331 (10% EEP)1.191.21
EEP8.70882
PENTA(SH)41.28-
2Desmodur® N330099.5099.50
Vestanat® T1890E78.6078.60
Butyl acetate5.505.50
EEP10.9010.90
Solvesso 1005.505.50
3Nacure 50762.002.00

A clear coating is applied by spraying on the main floor, water based Autowave®they are painted on Peugeot 1607:87 (Rouge Vallelunga) in the same manner as described in example 1. The results are presented in table 5.

Table 5

Determination of foaming systems main floor (OP)/transparent coating (PP)
OPPMTask. OP (µm)Task. PP (μm)Mentals. CL.
ToAutobaseSRSA26-3114-25542
LSrsv J18-2714-220 37
21Cost23-328-224Not spin.
22Cost28-328-185Not spin.
MAutowaveSRSA32-3618-19742
NSrsv32-3620-21035
23Cost27-3721-23196
24Cost25-3811-24075

This experiment clearly shows that the minimum thickness at which foaming occurs, shifts from about 40 microns to at least 75 microns adding PENTA(SH)4and not depends on the primary coating. All transparent cover otverzhdajutsja enough after 10 minutes at 60°and show good resistance to solvents.

Examples 25 and 26

Three compositions for transparent coatings 4 and 5 are prepared according to the formulation shown in table 6, all weights are given in grams. Instead of PENTA(SH)4the first component is used TMPTMP.

Table 6

Compositions for transparent coatings ConnectionCostCost1The FIRST62.33At 62.40 Tinuvin 1230.280.28 Tinuvin 11300.550.55 DBTL (10% in a mixture of butyl acetate/ xylene (1/1))6.286.29 EEP/S (1/1)16.0516.07 EEP2.632.64 t-butanol (70% in butyl acetate)7.177.18 Byk 344 (10 % EEP/S (1/1))2.392.39 Byk 390 (10 % EEP/S (1/1))0.960.96 TMPTMP1.361.242Desmodur® N330099.5099.50 Vestanat® T1890E78.6078.60 Butyl acetate5.505.50 EEP 10.9010.90 Solvesso 1005.505.503Nacure 50762.002.00

Compositions for transparent coatings 4 and 5 is sprayed on the main floor, water based, Autowave®painted Peugeot 1607:87 (Rouge Vallelunga), in the same manner as described in example 1. The results are presented in table 7.

Table 7

Determination of foaming systems main floor (OP)/transparent coating (PP)
Etc.PMTellp(µm)Tellp(µm)Mentall
2541630-9364
2651919-8562

These results clearly show that adding TMRTS to the composition for a transparent coating reduces the tendency to foaming of this transparent coating.

Example 27

Three-component composition for a transparent cover 6 get the recipe shown in table 8, all weights are given in grams. Instead of PENTA(SH)4the first component is used Capcure® 3/800.

Table 8

The composition of DL is transparent coating
ConnectionCost
1The FIRST63.92
Tinuvin 1230,30
Tinuvin 11300.60
DBTL (10% in a mixture of butyl acetate/xylene (1/1))7.69
Solvesso 1008.22
EEP7.65
t-butanol (70% in butyl acetate)7.36
Byk 344 (10 % EEP/S (1/1))2.20
Byk 390 (10 % EEP/S (1/1))0.91
Capcure® 3/8002.82
2Desmodur® N330099.50
Vestanat® T1890E78.60
Butyl acetate5.50
EEP10.90
Solvesso 1005.50
3Nacure 50762.00

Composition for transparent coating 6 is applied by spraying on the main floor, water based, Autowave®painted Peugeot 1607:87 (Rouge Vallelunga), in the same way as is isano in example 1. The minimum thickness of the layer in which you installed the foaming is 10 microns.

Examples 29 and 29

Three-component composition for a transparent cover 7 and a four-part composition for the transparent cover 8 is prepared according to a formulation shown in table 9, all weights are given in grams. Capcure® 3/800 used in the third and fourth components, respectively.

Table 9

Composition for transparent coating
ConnectionCostCost
1The FIRST63.963.9
EEP7.17.1
DBTL (10% in a mixture of butyl acetate/xylene (1/1))10.910.9
Tinuvin 11300.60.6
Tinuvin 1230.30.3
Butyl acetate5.45.4
Methoxypropylacetate3.68.8
Isopropanol5.2-
Byk 344 (10 % EEP/S (1/1))11
Byk 300 (10 % EEP/S (1/1))11
Byk 390 (10 % EEP/S (1/1))11
2Desmodur® N330099.599.5
Vestanat® T1890E78.678.6
Butyl acetate5.55.5
EEP10.910.9
Solvesso 1005.55.5
3Nacure 50762.02.0
Capcure® 3/8001.6-
Isopropanol0.4-
4Capcure® 3/800-2.5
Butyl acetate-1.5

Compositions for transparent coatings 7 and 8 is applied by spraying on the main floor, water based, Autowave®painted Daimler Benz 744, in the same manner as described in example 1. The minimum thickness of the layer in which you installed the foaming is 10 microns.

Example 30 and comparative example

Three-component composition for a transparent cover 9 and the comparative composition for transparent coating (SRSS) prepared by Retz is pure, presented in table 10, all weights are given in grams. Connection with thiol functional groups contained in the first component.

Table 10

Compositions for transparent coatings
ConnectionCostSRSS
1The FIRST64.3565.18
Tinuvin 1230.290.29
Tinuvin 11300.570.58
Byk 3220.570.58
DBTL (10% in a mixture of butyl acetate/ xylene (1/1))6.496.57
EEP/S (1/1)16.5616.78
Byk 331 (10% EEP)1.191.21
EEP8.708.82
PENTA(SH)41.28-
2Desmodur® N330099.5099.50
Vestanat® T1890E78.6078.60
Butyl acetate5.505.50
EEP10.9010.90
Solvesso 1005.505.50
3Nacure 50762.502.50

Change the viability of compositions for transparent coatings 9 and in table 10, appreciate time in the open vessel. The results are presented graphically in the form of the dependence of the viscosity changes with time, as shown in the drawing.

Suddenly the graph in the drawing shows that, rather than increasing, as suggested in U.S. patent 4788083, the viability of a composition for coating of the present invention is significantly reduced.

1. Composition for coating, including

a) a first compound containing at least one bicyclo-ortho-ester group having a structure according to formula I

in which X and Z may be the same or different and selected from linear or branched ALK(EN)yanovych groups with 1-4 carbon atoms, optionally containing oxygen atom or nitrogen;

Y not mean anything or chosen independently of X and Z from linear or branched ALK(EN)yanovych groups with 1-4 carbon atoms, optionally containing oxygen atom or nitrogen;

R1and R2may be the same or different is selected from the group of monovalent radicals, comprising hydrogen, hydroxyl, ALK(EN)ilen group containing 1-30 carbon atoms, this group can be linear or branched and may optionally contain one or more heteroatoms and groups, selected from among the group comprising oxygen, nitrogen, sulfur, phosphorus, sulfon, sulfoxy and ester, optionally substituted epoxypropoxy, cyano, amino, diagraphm, hydroxyl, halogen, a nitro-group, phosphorus, sulfoxylates, aminogroups, simple, essential, complex, ester, urea, urethane, thioester complex, thioamide, amide, carboxyl, carbonyl, aryl and acyl group, and divalent radicals, including ALK(EN)renovia group containing 1-10 carbon atoms, which groups may be linear or branched and may optionally contain one or more heteroatoms or groups selected from among the group comprising oxygen, nitrogen, sulfur, phosphorus, sulfon, sulfoxy and ester, optionally substituted epoxypropoxy, cyano, amino, diagraphm, hydroxyl, halogen, a nitro-group, phosphorus, sulfoxylates, amidon, simple, essential, complex, ester, urea, urethane, thioester complex, thioamide, amide, carboxyl, carbonyl, aryl and acyl groups, ester groups; ether groups; aminogroup; complex t the ester group; thioamide group, urethane group, urea group and a single bond,

b) a second compound containing at least two isocyanate groups, and

c) a third compound containing at least one Tilney group.

2. Composition for coating according to claim 1, wherein X, Y and Z denote methylene.

3. Composition for coating one or more of claims 1 and 2, characterized in that in the case where R1and R2represent monovalent radicals, they may be the same or different and selected from the group comprising hydrogen, hydroxyl, and linear or branched ALK(EN)ilen group containing 1-20 carbon atoms, optionally substituted by one or more hydroxyl group and optionally containing an ester group.

4. Composition for coating according to claim 3, wherein R1and R2may be the same or different and selected from the group comprising methyl, methylol, ethyl, Atila, propyl, propylon, butyl, pentyl, hexyl, heptyl, octyl, nonyl, decyl, undecyl and

-CH2-CH2-O-CO1-20ALK(EN)ilen group.

5. Composition for coating according to one or more of the preceding points, characterized in that the compound with the isocyanate functional groups selected from the group comprising biuret, isocyanurate, allophanate,uretdione and mixtures thereof.

6. Composition for coating according to one or more of the preceding points, characterized in that the compound with a thiol functional group contains at least two tirinya group.

7. Composition for coating according to claim 6, characterized in that the compound with a thiol functional groups selected from pentaerythritoltetranitrate(3-mercaptopropionate), trimethylolpropane(3-mercaptopropionate) and T[(C3H6O)nCH2CHOHCH2SH]3where T means triol, and n is 1-100.

8. Composition for coating according to one or more of the preceding points, characterized in that the compound with a thiol functional groups is used in an amount of from 0.1 to 10 wt.% per connection bicyclo-ortho-ester functional groups.

9. The method of curing the composition by one or more of the preceding paragraphs, namely, that hidden hydroxyl group bicyclo-ortho-ester groups will unlock in the presence of water, optionally in the presence of the first catalyst, and the fact that the formed hydroxyl group and present tirinya groups interact with the isocyanate groups of the second compound, optionally in the presence of the second catalyst.

10. The method according to claim 9, characterized in that the first catalyst is selected from the group of kislotnik or acids Branstad.

11. The method according to claim 10, characterized in that the acid Bronsted selected from the group comprising mono - and dialkylphosphate, carboxylic acid containing at least one atom of chlorine and/or fluorine, alkyl, or arylsulfonyl acid or (alkyl)phosphoric acid.

12. The method according to claim 11, characterized in that the acid Bronsted selected from the group comprising methansulfonate acid, paratoluenesulfonyl acid, optionally substituted naphthalenesulfonate acid, dodecylbenzenesulfonic acid, dibutylester, trichloroacetic acid, phosphoric acid and mixtures thereof.

13. The method according to one or more of p-12, characterized in that use anywhere from 0 to 10 wt.% the first catalyst per connection bicyclo-ortho-ester functional groups.

14. The method according to item 13, characterized in that use is from 0.3 to 8 wt.% the first catalyst.

15. The method according to one or more of PP-14, characterized in that the second catalyst selected from the group comprising dimethylvaleric tin, dibutylthiourea tin, dibutylthiourea tin, octoate tin, octoate zinc chelate of aluminum, dimethylvaleric tin and mixtures thereof.

16. The method according to item 15, wherein the second catalyst is contained in an amount of from 0.001 to 5 wt.%, calculated on the dry matter.

17. A three-component system for use as a coating, the ex is different, however, the first component includes at least one compound containing at least one bicyclo-ortho-ester group having a structure according to formula I

in which X and Z may be the same or different and selected from linear or branched ALK(EN)yanovych groups with 1-4 carbon atoms, optionally containing oxygen atom or nitrogen;

Y not mean anything or chosen independently of X and Z from linear or branched ALK(EN)yanovych groups with 1-4 carbon atoms, optionally containing oxygen atom or nitrogen;

R1and R2may be the same or different and selected from the group of monovalent radicals comprising hydrogen, hydroxyl, ALK(EN)ilen group containing 1-30 carbon atoms, this group can be linear or branched and may optionally contain one or more heteroatoms and groups, selected from among the group comprising oxygen, nitrogen, sulfur, phosphorus, sulfon, sulfoxy and ester, optionally substituted epoxypropoxy, cyano, amino, diagraphm, hydroxyl, halogen, a nitro-group, phosphorus, sulfoxylates, aminogroups, simple, essential, complex, ester, urea, urethane complex thioester, thioamide, amide, carboxyl, carbonyl, aryl and AC is through the group, and divalent radicals, including ALK(EN)renovia group containing 1-10 carbon atoms, which groups may be linear or branched and may optionally contain one or more heteroatoms or groups selected from among the group comprising oxygen, nitrogen, sulfur, phosphorus, sulfon, sulfoxy and ester, optionally substituted epoxypropoxy, cyano, amino, diagraphm, hydroxyl, halogen, a nitro-group, phosphorus, sulfoxylates, amidon, simple, essential, complex, ester, urea, urethane, thioester complex, thioamide, amide, carboxyl, carbonyl, aryl and acyl groups, ester groups; ether groups; aminogroup; complex thioester group; thioamide group, urethane group, urea group and a single bond, and the compound with a thiol functional groups, the second component includes at least one connection with isocyanate functional groups and the third component includes the first catalyst hydrolysis connection with bicyclo-ortho-ester functional groups.

18. A three-component system for use as a coating, characterized in that the first component includes at least one compound containing at least one bicyclo-ortho-ester group having the structure is according to formula I

in which X and Z may be the same or different and selected from linear or branched ALK(EN)yanovych groups with 1-4 carbon atoms, optionally containing oxygen atom or nitrogen;

Y not mean anything or chosen independently of X and Z from linear or branched ALK(EN)yanovych groups with 1-4 carbon atoms, optionally containing oxygen atom or nitrogen;

R1and R2may be the same or different and selected from the group of monovalent radicals comprising hydrogen, hydroxyl, ALK(EN)ilen group containing 1-30 carbon atoms, this group can be linear or branched and may optionally contain one or more heteroatoms and groups, selected from among the group comprising oxygen, nitrogen, sulfur, phosphorus, sulfon, sulfoxy and ester, optionally substituted epoxypropoxy, cyano, amino, diagraphm, hydroxyl, halogen, a nitro-group, phosphorus, sulfoxylates, aminogroups, simple, essential, complex, ester, urea, urethane complex thioester, thioamide, amide, carboxyl, carbonyl, aryl and acyl group, and divalent radicals, including ALK(EN)renovia group containing 1-10 carbon atoms, which groups may be linear or branched and may obazatelno to contain one or more heteroatoms and groups selected from among the group comprising oxygen, nitrogen, sulfur, phosphorus, sulfon, sulfoxy and ester, optionally substituted epoxypropoxy, cyano, amino, diagraphm, hydroxyl, halogen, a nitro-group, phosphorus, sulfoxylates, amidon, simple, essential, complex, ester, urea, urethane, thioester complex, thioamide, amide, carboxyl, carbonyl, aryl and acyl groups, ester groups; ether groups; aminogroup; complex thioester group; thioamide group, urethane group, urea group and a single bond, the second component includes at least one compound with isocyanate functional groups and the third component includes the first catalyst hydrolysis connection with bicyclo-ortho-ester functional groups and at least one compound with a thiol functional groups.

19. A four-part system for use as a coating, characterized in that the first component includes at least one compound containing at least one bicyclo-ortho-ester group having a structure according to formula I

in which X and Z may be the same or different and selected from linear or branched ALK(EN)yanovych groups with 1-4 atoms is carbon, optionally containing an oxygen atom or nitrogen;

Y not mean anything or chosen independently of X and Z from linear or branched ALK(EN)yanovych groups with 1-4 carbon atoms, optionally containing oxygen atom or nitrogen;

R1and R2may be the same or different and selected from the group of monovalent radicals comprising hydrogen, hydroxyl, ALK(EN)ilen group containing 1-30 carbon atoms, this group can be linear or branched and may optionally contain one or more heteroatoms and groups, selected from among the group comprising oxygen, nitrogen, sulfur, phosphorus, sulfon, sulfoxy and ester, optionally substituted epoxypropoxy, cyano, amino, diagraphm, hydroxyl, halogen, a nitro-group, phosphorus, sulfoxylates, aminogroups, simple, essential, complex, ester, urea, urethane complex thioester, thioamide, amide, carboxyl, carbonyl, aryl and acyl group, and divalent radicals, including ALK(EN)renovia group containing 1-10 carbon atoms, which groups may be linear or branched and may optionally contain one or more heteroatoms or groups selected from among the group comprising oxygen, nitrogen, sulfur, phosphorus, sulfon, sulfoxy and ester, optional someseni what epoxypropoxy, cyano, amino, diagraphm, hydroxyl, halogen, a nitro-group, phosphorus, sulfoxylates, amidon, simple, essential, complex, ester, urea, urethane, thioester complex, thioamide, amide, carboxyl, carbonyl, aryl and acyl groups, ester groups; ether groups; aminogroup; complex thioester group; thioamide group, urethane group, urea group and a single bond, the second component includes at least one connection with isocyanate functional groups and the third component includes the first catalyst hydrolysis connection with bicyclo-ortho-ester functional groups and the fourth component includes a connection with thiol functional groups.



 

Same patents:

FIELD: polymer production.

SUBSTANCE: coating composition comprising at least one compound with at least two isocyanate functional groups; at least one compound reactive to isocyanate and having at least two groups reactive to isocyanate groups, which are selected from mercapto groups, hydroxyl groups and combinations thereof; and cocatalyst consisting of phosphine and Michael acceptor, amount of catalyst constituting from 0.05 to 20% of the weight of dry residue. Invention also describes a method for coating substance with indicated composition as well as coated substrate, and adhesive containing at least one compound with at least two isocyanate functional groups and at least one compound containing at least two above defined groups reactive to isocyanate groups. Moreover, invention discloses employment of composition for finishing of great vehicles and refinishing of motor cars. Composition is characterized by drying time at a level of 20 min, modulus of elasticity 1904, Persose hardness 303, and brightness (85°C) at a level of 100.

EFFECT: expanded coating assortment.

16 cl, 16 tbl, 48 ex

FIELD: protective coatings.

SUBSTANCE: invention relates to composition to form coatings with quick-setting surface at ambient temperature for use in re-finishing industry, in manufacture of clear coating, and as primer layer in multilayer coating. Composition contains at least one latent base-type photoactivator and base-catalyzed polymerizable or hardenable organic material including isocyanate-reactive groups bearing at least one thiol group.

EFFECT: enabled preparation of compositions, which can be UV hardened and are characterized by acceptable setting velocity at ambient temperature in locations not easily accessible for UV emission.

15 cl, 11 tbl, 10 ex

Polymer composition // 2263695

FIELD: polymerizing mixtures for making water-repellent and anticorrosive coats.

SUBSTANCE: proposed polymer composition contains polyester resins, styrene, hardening agent-peroxide compounds and accelerating agent, inert substances, gel-type binder, paraffins and poly-urethanes. Proposed composition increases service life of coat due to reduction of effect of aggressive factors of outside medium on characteristics of coat.

EFFECT: increased rate of polymerization without considerable stresses in coat; facilitated procedure of applying coats on base of this composition.

23 cl, 80 ex

FIELD: spray compositions for coating.

SUBSTANCE: the invention is pertaining to a composition used for coating including at least one isocyanate- reactive compound containing: a) at least one thiol group; b) at least one polyisocyanate-functional compound; and c) a catalytic agent containing at least one organometallic compound, in which as a metal is used a metal from groups 3-13 of Mendeleyev's periodic system of elements. The invention is also pertaining to usage of the composition for spray coating in the form of the transparent coating layer, to its use in the form of the transparent coating layer in a multilayer lacquer coating and to its use for a repeated finishing and for refinishing of the large-scale transportation means.

EFFECT: the invention ensures production of transparent coating layers used in multilayer lacquer coatings and refinishing of the large-scale transportation means.

11 cl, 17 ex

FIELD: polymer materials.

SUBSTANCE: composition contains 5-95% of alkali-swelled polymer prepared by stepped nucleus/shell-type polymerization and 95-5% of at least one polyurethane. Composition is suitable as priming in priming/transparent layer system, which is characterized by high mechanical properties, high "flop", good brightness, essentially lack of "penetration", and good waterproofness.

EFFECT: reduced coating drying time and number of layers.

8 cl, 3 tbl, 17 ex

FIELD: varnish-and-paint industry.

SUBSTANCE: invention relates to polyurethane coatings intended to be applied on a variety of surfaces (metal, wood, etc.). Composition comprises toluene solution of hydroxyl-containing component and toluene solution of polyisocyanate. Hydroxyl-containing component is oligoether obtained by in-melt reaction of tall oil with triethanolamine at 170-200°C and characterized by viscosity at most 10000 mPa·s, acid number at most 5.0 mg KOH/g and hydroxyl number 125-138 mg KOH/g. Oligoether-to-polyisocyanate ratio is 1:1.

EFFECT: enabled preparation of two-component lacquer with elevated light resistance, water resistance, and stability, which is suitable for anticorrosive coatings on metal products.

3 cl, 1 tbl

FIELD: corrosion prevention technologies.

SUBSTANCE: method includes serial application of layers of polymer compositions to metallic surface, while serial layers of polymer compositions are made with various thermal expansion coefficients. As said polymer composition polyurethane compound is used with special admixtures and filling agent, influencing thermal expansion coefficient of covering layer, and content of said filling agent in each following layer is set less than content of said filling agent in previous layer.

EFFECT: higher efficiency.

2 cl, 9 ex

FIELD: building materials, in particular polymer composition for sealing adhesive, coats, filling floors, etc.

SUBSTANCE: method includes blending at pH 7.5-13.0 of inorganic powder, water and technological additives: polymethylsiloxane, dioctylphtalate, chloroparaffin, followed by addition of polyisocyanate oligomer comprising 1.9-8.9 mass % of isocyanate groups. Method makes it possible to create fastness mode for carbolinic acid and its involvement in chain-elongation reaction without releasing of carbon dioxide.

EFFECT: composition of increased strength, flexibility and alternated characteristics.

4 ex

Resin composition // 2247087

FIELD: building industry, in particular polymer composition for sealing adhesives.

SUBSTANCE: claimed composition contains polyisocyanate oligomer comprising 1.9-8.9 mass % of isocyanate groups, water, polymethylsiloxane, dioctylphtalate, chloroparaffin, glycerol, and inorganic powder. Composition of present invention is useful in manufacturing of floor, roof cladding, etc.

EFFECT: composition if increased flexibility, strength, uniform surface flowing, improved wettability, adhesion, homogeneity, radiation resistance, and increased curing time.

4 ex

FIELD: optical engineering.

SUBSTANCE: invention, in particular, relates to UV solidifying composition based on urethane acrylates and containing 6.0-19.3 wt parts of hydroxyalkylacrylate and 1-5 wt parts of light initiator, said urethane acrylate base being mixture of 30.0-82.0 wt parts of interaction product of poly(oxypropylene glycol), 2,4-tolylenediisocyanate, hydroxypropyl acrylate, and 1,2-propylene glycol [molar ratio (1-2):(2-3):(2-2.1):(0.003-0.33)] with 4.7-60.0 wt parts of interaction product of 2,4-tolylenediisocyanate, hydroxypropyl acrylate, and 1,2-propylene glycol [molar ratio 1:(2.5:(0.004-0.065)]. Fiber light guide consisting of quartz optical fiber enrobed by above-defined composition is further described. Loss of light in light guide is thus lowered to 0.42-0.23 dB/km. Rupture strength is thus increased by 7.0 GPa.

EFFECT: increased rupture strength and reduced light loss.

2 cl, 1 tbl, 8 ex

FIELD: optical engineering.

SUBSTANCE: invention, in particular, relates to UV solidifying composition based on urethane acrylates and containing 6.0-19.3 wt parts of hydroxyalkylacrylate and 1-5 wt parts of light initiator, said urethane acrylate base being mixture of 30.0-82.0 wt parts of interaction product of poly(oxypropylene glycol), 2,4-tolylenediisocyanate, hydroxypropyl acrylate, and 1,2-propylene glycol [molar ratio (1-2):(2-3):(2-2.1):(0.003-0.33)] with 4.7-60.0 wt parts of interaction product of 2,4-tolylenediisocyanate, hydroxypropyl acrylate, and 1,2-propylene glycol [molar ratio 1:(2.5:(0.004-0.065)]. Fiber light guide consisting of quartz optical fiber enrobed by above-defined composition is further described. Loss of light in light guide is thus lowered to 0.42-0.23 dB/km. Rupture strength is thus increased by 7.0 GPa.

EFFECT: increased rupture strength and reduced light loss.

2 cl, 1 tbl, 8 ex

Resin composition // 2247087

FIELD: building industry, in particular polymer composition for sealing adhesives.

SUBSTANCE: claimed composition contains polyisocyanate oligomer comprising 1.9-8.9 mass % of isocyanate groups, water, polymethylsiloxane, dioctylphtalate, chloroparaffin, glycerol, and inorganic powder. Composition of present invention is useful in manufacturing of floor, roof cladding, etc.

EFFECT: composition if increased flexibility, strength, uniform surface flowing, improved wettability, adhesion, homogeneity, radiation resistance, and increased curing time.

4 ex

FIELD: building materials, in particular polymer composition for sealing adhesive, coats, filling floors, etc.

SUBSTANCE: method includes blending at pH 7.5-13.0 of inorganic powder, water and technological additives: polymethylsiloxane, dioctylphtalate, chloroparaffin, followed by addition of polyisocyanate oligomer comprising 1.9-8.9 mass % of isocyanate groups. Method makes it possible to create fastness mode for carbolinic acid and its involvement in chain-elongation reaction without releasing of carbon dioxide.

EFFECT: composition of increased strength, flexibility and alternated characteristics.

4 ex

FIELD: corrosion prevention technologies.

SUBSTANCE: method includes serial application of layers of polymer compositions to metallic surface, while serial layers of polymer compositions are made with various thermal expansion coefficients. As said polymer composition polyurethane compound is used with special admixtures and filling agent, influencing thermal expansion coefficient of covering layer, and content of said filling agent in each following layer is set less than content of said filling agent in previous layer.

EFFECT: higher efficiency.

2 cl, 9 ex

FIELD: varnish-and-paint industry.

SUBSTANCE: invention relates to polyurethane coatings intended to be applied on a variety of surfaces (metal, wood, etc.). Composition comprises toluene solution of hydroxyl-containing component and toluene solution of polyisocyanate. Hydroxyl-containing component is oligoether obtained by in-melt reaction of tall oil with triethanolamine at 170-200°C and characterized by viscosity at most 10000 mPa·s, acid number at most 5.0 mg KOH/g and hydroxyl number 125-138 mg KOH/g. Oligoether-to-polyisocyanate ratio is 1:1.

EFFECT: enabled preparation of two-component lacquer with elevated light resistance, water resistance, and stability, which is suitable for anticorrosive coatings on metal products.

3 cl, 1 tbl

FIELD: polymer materials.

SUBSTANCE: composition contains 5-95% of alkali-swelled polymer prepared by stepped nucleus/shell-type polymerization and 95-5% of at least one polyurethane. Composition is suitable as priming in priming/transparent layer system, which is characterized by high mechanical properties, high "flop", good brightness, essentially lack of "penetration", and good waterproofness.

EFFECT: reduced coating drying time and number of layers.

8 cl, 3 tbl, 17 ex

FIELD: spray compositions for coating.

SUBSTANCE: the invention is pertaining to a composition used for coating including at least one isocyanate- reactive compound containing: a) at least one thiol group; b) at least one polyisocyanate-functional compound; and c) a catalytic agent containing at least one organometallic compound, in which as a metal is used a metal from groups 3-13 of Mendeleyev's periodic system of elements. The invention is also pertaining to usage of the composition for spray coating in the form of the transparent coating layer, to its use in the form of the transparent coating layer in a multilayer lacquer coating and to its use for a repeated finishing and for refinishing of the large-scale transportation means.

EFFECT: the invention ensures production of transparent coating layers used in multilayer lacquer coatings and refinishing of the large-scale transportation means.

11 cl, 17 ex

Polymer composition // 2263695

FIELD: polymerizing mixtures for making water-repellent and anticorrosive coats.

SUBSTANCE: proposed polymer composition contains polyester resins, styrene, hardening agent-peroxide compounds and accelerating agent, inert substances, gel-type binder, paraffins and poly-urethanes. Proposed composition increases service life of coat due to reduction of effect of aggressive factors of outside medium on characteristics of coat.

EFFECT: increased rate of polymerization without considerable stresses in coat; facilitated procedure of applying coats on base of this composition.

23 cl, 80 ex

FIELD: protective coatings.

SUBSTANCE: invention relates to composition to form coatings with quick-setting surface at ambient temperature for use in re-finishing industry, in manufacture of clear coating, and as primer layer in multilayer coating. Composition contains at least one latent base-type photoactivator and base-catalyzed polymerizable or hardenable organic material including isocyanate-reactive groups bearing at least one thiol group.

EFFECT: enabled preparation of compositions, which can be UV hardened and are characterized by acceptable setting velocity at ambient temperature in locations not easily accessible for UV emission.

15 cl, 11 tbl, 10 ex

FIELD: polymer production.

SUBSTANCE: coating composition comprising at least one compound with at least two isocyanate functional groups; at least one compound reactive to isocyanate and having at least two groups reactive to isocyanate groups, which are selected from mercapto groups, hydroxyl groups and combinations thereof; and cocatalyst consisting of phosphine and Michael acceptor, amount of catalyst constituting from 0.05 to 20% of the weight of dry residue. Invention also describes a method for coating substance with indicated composition as well as coated substrate, and adhesive containing at least one compound with at least two isocyanate functional groups and at least one compound containing at least two above defined groups reactive to isocyanate groups. Moreover, invention discloses employment of composition for finishing of great vehicles and refinishing of motor cars. Composition is characterized by drying time at a level of 20 min, modulus of elasticity 1904, Persose hardness 303, and brightness (85°C) at a level of 100.

EFFECT: expanded coating assortment.

16 cl, 16 tbl, 48 ex

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