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Invention relates to application of coating on pipeline surface. Note here that this process comprises the steps that follow. Coating composition is made containing first component including at least one polyisocyanate and second component including at least 20 wt % of aliphatic cyclic secondary diamine with secondary amine substitutes not including ether groups. Note here that said aliphatic cyclic secondary diamine contains two hexyl rings bonded by bridge, or one hexyl ring. Note that said composition contains approx 15-45 vol % of inorganic filler particles. First and second components are combined to get a fluid mix. The latter is applied on pipeline inner surface and cured to make hardened coating. Besides, invention relates to two-component coating compositions containing aliphatic cyclic secondary diamine and to process of its application on the surfaces of pipeline (for example, for drinking water). |
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Silane-containing polyurea coatings Invention relates to a polyurea coating composition and a method for application thereof on a substrate. The composition includes a) an amino-functional component which includes: (i) an aspartate-based amino-functional resin; and (ii) a blocked primary amine; and (b) an isocyanate-functional component which includes: (i) a polyisocyanate with functionality greater than 2.0 and isocyanate equivalent weight greater than 300; and (ii) isocyanate silane or methacryloxysilane. |
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Emulsions and adhesives containing proteins, producing and using them Invention refers to an adhesive composition, a method for adhesion of a first product to a second one, a method for producing a first composite material and a product prepared with the use of the adhesive composition. The adhesive composition contains from 5% to 90% (wt/wt) of a reactive pre-polymer specified in a group consisting of polyisocyanate pre-polymer, epoxy bonding pre-polymer, latex pre-polymer or a combination thereof, and from 10% to 99% (wt/wt) of a recovered polypeptide composition dispersing by the reactive pre-polymer in water. The recovered polypeptide composition is made of corn, wheat, sunflower, cotton, rape, canola, castor-oil plant, soya, camomile, flax, jatropha, mallow, peanut, algae, tobacco, whey or a combination thereof. |
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Protein-containing foam materials, obtaining and application thereof Invention relates to polyurethane foam material, method of obtaining polyurethane foam material, premix for obtaining polyurethane material and product, containing foam material. Polyurethane foam material represents product of reaction of mixture: (a) isocyanate-based reagent; (b) optional compound, which reacts with isocyanate, and protein-containing composition, capable of reducing density of polyurethane foam material by at least 5% relative to polyurethane material, obtained from the same mixture but without protein-containing composition. |
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Polyurethane formulation with high green strength and gunnability Invention relates to a moisture-curable polyurethane formulation intended for joint sealing, method for producing a curable polyurethane formulation and method of bonding materials together using the formulation is also provided. A moisture-curable polyurethane formulation capable of curing to form a reaction product comprises: a) at least one isocyanate-terminated prepolymer wherein the NCO/OH mole ratio is within the range of 5 to 20, b) optionally, additional monomeric/polymeric isocyanate, c) at least one of (i) at least one of, or ii) a urea-based thixotropic additive compound produced by the in situ reaction of the excess of free isocyanate in the isocyanate-terminated prepolymer or the additional monomeric/polymeric isocyanate with an amine in the presence of a carrier in a NCO/NH2 equivalent ratio of at least 3, d) at least one rheology modifier or filler. The reaction product comprises more than 1 wt % of urea groups. The formulation is capable of reacting the components a, optionally b, c(i) or c(ii) and d. A method of adhering a first substrate to a second substrate comprising applying the polyurethane formulation to a first substrate and contacting the polyurethane formulation-applied first substrate surface with the second substrate. A method for bonding materials together which comprises applying the polyurethane formulation to a first substrate, bringing a second substrate in contact with the formulation applied to the first substrate, and subjecting the applied formulation to moisture which will allow the formulation to cure to an irreversible solid form. |
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Claimed invention relates to the field of coating compositions, namely it deals with the coating composition, which includes a composition of an amine hardening agent, containing a bis-aromatic secondary diamine, a bis-aromatic primary diamine and optionally a monoaromatic primary diamine. Described is the coating composition, containing: a) composition of the amine hardening agent, containing: (i) from 60 mol % to 90 mol % of the bis-aromatic secondary diamine, which has formula I, where each radical R1 is independent C1-C10 alkyl; (ii) from 10 mol % to 40 mol % of the bis-aromatic primary diamine, which has formula II, where each radical R2 is independent C1-C10 alkyl; and each radical R3 is independent chlorine, bromine, fluorine or hydrogen, and where mol % is based on the total amount of molar parts of the bis-aromatic secondary diamine and the bis-aromatic primary diamine; and (b) prepolymer, having free isocyanate (NCO)groups; with the molar ratio of the NCO groups in the prepolymer to amine (-NH2) groups in the composition of the amine solidifying agent being within the range from 0.8 to 2.0. Described is the coating composition, containing: a) composition of the amine hardening agent, containing: (i) not less than 50 mol % of the bis-aromatic secondary diamine, which has formula I, where each radical R1 is independent C1-C10 alkyl; (ii) from 3 mol % to 47 mol % of the bis-aromatic primary diamine, which has formula II, where each radical R2 is independent C1-C10 alkyl; and each radical R3 is independent chlorine, bromine, fluorine or hydrogen, and (iii) from 3 mol % to 47 mol % of the monoaromatic primary diamine, which has formula IIIa, IIIb, or their mixture; where each radical R4 is independent -CH2- or -S-; where molar % is based on the total amount of moles of the bis-aromatic secondary diamine and bis-aromatic primary diamine and monoaromatic primary diamine; and (b) prepolymer, having free isocyanate (NCO)groups; with the molar ratio of the NCO groups in the prepolymer to amine (-NH2) groups in the composition of the amine solidifying agent being within the range from 0.8 to 2.0. Also described is the coating, which contains reacting or miscible in place the said compositions of the amine hardening agent with the prepolymer. |
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Method of producing ether urethane acrylate oligomer Method of producing an ether urethane acrylate oligomer is carried out by reacting monomethacrylate ether of ethylene glycol with an isocyanate-containing prepolymer SKU-PFL-100, the method being characterised by that the prepolymer SKU-PFL-100 after loading is mixed and heated at 25-30°C for 10-20 minutes, wherein dibutyltin dilaurate is added to the prepolymer in the form of a solution in monomethacrylate ether of ethylene glycol gradually in portions of 1/4-1/5 of the total weighed portion with an interval of 15 minutes between portions; after loading the last portion, the mixture is stirred at 25-30°C for 15 minutes, temperature is then raised to 35-60°C, followed by stirring for 5.0 hours until isocyanate groups are exhausted in the finished oligomer. The oligomer obtained using the method is a transparent mass with a light-yellow to light-brown colour and viscosity of 200-300 Pa·s. |
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Forpolymer with terminal isocyanate groups, method of obtaining thereof and thereof application Invention relates to forpolymer with terminal isocyanate groups, method of its obtaining, to elastic foam polyurethane, method of its obtaining and its application. Method of obtaining forpolymer with terminal isocyanate groups consists in the following: reaction of interaction of the following components is carried out: a1) 45-65 wt % of diphenylmethanediisocyanate counted per 100 wt % of forpolymer, where diphenylmethanediisocyanate contains 50-79 wt % of 4,4'-diphenylmethanediisocyanate counted per 100 wt % of diphenylmethanediisocyanate; a2) 25-45 wt % of polymethylenepolyphenylpolyisocyanate counted per 100 wt % of forpolymer, a3) 5-20 wt % of polyetherpolyol counted per 100 wt % of forpolymer. The average functionality of polyetherpolyol (a3) constitutes 2-6, the average molecular weight constitutes 2000-10000, the average content of ethyleneoxide in polyetherpolyol constitutes 22-43 wt % counted per 100 wt % of polyetherpolyol. Content of NCO in forpolymer constitutes 21-30 wt % counted per 100 wt % of forpolymer. Method of obtaining elastic foam polyurethane consists in the following: reaction of interaction of components A, B and C is carried out. Reaction NCO-index constitutes 70-120. Component A represents said forpolymer with terminal isocyanate groups. Component B represents polyol, containing: b1) 0.1-20 wt.p. of at least first polyoxyethylenepolyoxypropylenepolyol counted per 100 wt % of B and C, where functionality of first polyoxyethylenepolyoxypropylenepolyol is integer number, equal or larger than 2, and the average content of ethyleneoxide in first polyoxyethylenepolyoxypropylenepolyol is equal or is larger than 50 wt%, b2) 30-90 wt.p. of second polyoxyethylenepolyoxypropylenepolyol counted per 100 wt % of B and C, where hydroxyl number of second polyoxyethylenepolyoxypropylenepolyol constitutes 25-40 mg/KOH, and the average content of ethyleneoxide in second polyoxyethylenepolyoxypropylenepolyol is equal or is lower than 30 wt %, b3) 5-60 wt.p. of polymer polyol, b4) 0.01-15 wt.p. of chain extender, b5) 0.01-20 wt.p. of catalyst and/or foam stabiliser. Component C is represented by water. Obtained elastic foam polyurethane is applied in production of fittings, cushioning element or automobile. |
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Prepregs and moulded products, obtained from them at lower temperature Claimed group of inventions relates to prepregs and components, obtained from them at lower temperature. Described are prepregs consisting mainly of: A) at least one fibrous base, and B) as matrix material of at least one urethdione group-containing powder-like polyurethane composition with high reaction ability, which contains mainly: a) at least one urethdion group-containing hardening agent based on products of polybonding of aliphatic, (cyclo)aliphatic or cycloaliphatic polyisocyanates with urethdione groups and compounds with hydroxyl groups, which is in solid form at temperature below 40°C, and in liquid form at temperature higher than 125°C and contains less than 5 wt % of free NCO-groups and from 3 to 25 wt % of urethdione groups, and b) at least one polymer with hydroxyl groups, which is in solid form at temperature below 40°C, and in liquid form at temperature higher than 125°C, and possesses hydroxyl number from 20 to 200 mg KOH/g, c) from 0.1 to 5 wt % of at least one catalyst, selected from the group, including quaternary ammonium salts and/or quaternary phosphonium salts with halogens, hydroxides, alcoholates or anions of organic or inorganic acids as counterions, and d) from 0.1 to 5 wt % of at least one cocatalyst, selected from the group, including: d1) at least one epoxide, with components a) and b) being taken in such ratio that for each hydroxyl group of component b) there is from 0.3 to 1 urethdione group of component a). Also described is method of obtaining said prepregs, and their application. Method of manufacturing components from composite material is described, with said prepreg, in temperature interval from values higher than 100°C and to 160°C, being pressed in suitable form under pressure and if necessary uncer vacuuming. Components from composite material, obtained by claimed method, are described. |
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Invention relates to method of obtaining polyurethane polymer and polyurethane polymer obtained by said method. Described is method of obtaining soft foam polyurethane, including stage of reaction of: A) polyesterpoluols, which have terminal secondary hydroxyl groups, obtained by reaction of polyesters, containing terminal carboxyl groups, with epoxide of general formula , with R1 representing alkyl residue or aryl residue, and polyester, containing terminal carboxyl groups, having acid number from ≥25 mg KOH/g to ≤400 mg KOH/g and hydroxyl number ≤5 mg KOH/g with B1) polyisocyanates, selected from the group, including toluylene diisocyanate, diphenylmethane diisocyanate, polymer diphenylmethane diisocyanate, xylylene diisocyanate, naphthylene diisocyanate, hexamethylene diisocyanate, diisocyanate dicyclohexylmethane and/or isophorone diisocyanate. Also described is soft polyurethane, obtained by claimed method. |
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Porous gels based on aromatic and cycloaliphatic amines Invention relates to a porous gel, a method of obtaining the porous gel and its application. The porous gel contains given below components in a converted form: (a1) not fewer than one multifunctional isocyanate, (a2) not fewer than one multifunctional aromatic amine and (a3) not fewer than one multifunctional cycloaliphatic amine. The porous gel has at least 70 vol.% porosity. |
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Invention relates to field of anaerobic sealing compositions based on (meth)acryl monomers, applied as gasket in sealing flanges and flat joints, made of various metals and alloys, in particular applied in butt end sealing of pumps, steering units, units of thrust reverse systems and other hydrosystems of airplanes. Anaerobic sealing composition contains, wt. p.: (meth)acryl monomer 20.0-55.0, initiator 2.0-5.1, inhibitor 0.05-0.1, functional additives 4.0-20.0 and mixture, containing 93-80 wt % of product of interaction of hydroxyl-containing polybutadiene rubber SKD-GTRA, aromatic and/or aliphatic diisocyanate, hydroxyl-containing (meth)acrylate and water with their molar ratio respectively (1-5):(2-6):2:(0.001-0.1) and 7-20 wt % of product of interaction of hydroxyl-containing (meth)acrylate, water and 2,4-toluylenediisicyanate with their molar ratio 2:(0.001-0.1):1 - 80.0-45.0. |
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Prepregs and articles moulded therefrom Invention relates to prepregs, a method for production and use thereof, as well as a method of making components from composite material using said prepregs. The prepregs are made of A) at least one type of reinforcing fibres and B) at least one powdered polyurethane composition as a matrix material. Component B) contains: a) at least one urethdione group-containing curing agent based on products of polyaddition of aliphatic, (cyclo)aliphatic or cycloaliphatic polyisocyanates with urethdione groups and compounds with hydroxyl groups, which is in solid state at temperature below 40°C, in liquid state above 125°C and contains less than 5 wt % free NCO-groups and 3-25 wt % urethdione groups; b) at least one polymer with hydroxyl groups which is in solid state at temperature below 40°C, in solid state above 125°C and has a hydroxyl number of 20-200 mg KOH/g. Components a) and b) are used in a ratio of one hydroxyl group in component b) per 0.3-0.7 urethdione group in component a). |
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Polyurethanes, products and coatings made from them and methods of their production Invention relates to versions of polyurethane, characterized by low banding or absence of visible banding, as well as to product and laminate, containing such polyurethane. Polyurethane contains product of reaction of the following components: (a) urethane prepolymer with isocyanate functionality, (b) from 0.3 to 0.7 trimethylolpropane equivalent, (c) to 0.4 butanediol or pentanediol equivalent. Component (a) represents product of reaction of, at least, one polyisocyanate in amount 1 equivalent and pentanediol in amount from 0.35 to 0.4 equivalent. Product of reaction of components in fact does not contain polyester polyol and polyether polyol. Product, which contains said polyurethane is selected from the group, including transparent products, optical products, photochromic products, ballistic resistant products. Laminate, containing at least one layer of claimed polyurethane, also contains, at least, one layer of base, selected from the group, including paper, glass, ceramics, wood, stone, fabric, metal or organic polymer material and their combinations. |
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Method for application of coatings, gluing and connection of mineral surfaces Invention relates to a method of applying coatings for gluing or connection of surfaces of mineral materials by means of synthetic resin, preferably the 2-component synthetic resin. The invention is used for the reinforcement of slopes, first of all, coastal slopes to regulate moving water flows. The method for applying coatings for gluing or connection of the surfaces of mineral materials by means of the 2-component synthetic resin is realised by the application of the said synthetic resin on a surface or by connection of the surfaces of mineral materials by means of the synthetic resin and solidification of the said synthetic resin, containing from 0.01 to 10 wt % of one or several hydroxy- or alcoxyaminosilane compounds of general formula |
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Soil reinforcement composition Invention relates to compositions sued as binder for soil, and can be used in construction and mining. A two-component composition for reinforcing soil by injection contains as an isocyanate component polyphenylene polymethylene polyisocyanate containing 30-31% NCO groups, and as a hydroxyl component a homogenous mixture of alkoxylated alkanetriol with molecular weight of 370-500, ethylene glycol, a urethane-forming catalyst selected from a group comprising dimethylethanolamine and methyldiethanolamine, potassium acetate and a diluent selected from a group comprising chlorinated paraffin wax CP-470 and a mixture thereof with dibutyl phthalate, with content of the isocyanate and hydroxyl components in equal volumes. |
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Polyurethane composition and use thereof to produce holographic media Invention relates to a polyurethane composition for producing holographic media, which includes: (A) a polyisocyanate component containing at least one polyurethane prepolymer with a terminal isocyanate group with isocyanate group functionality of 1.9-5.0, for which the isocyanate group is attached to a primary aliphatic residue and which is based on compounds with hydroxyl functional groups with hydroxyl group functionality of 1.6-2.05, (B) polyether polyols which react with isocyanates, (C) urethane acrylates and/or urethane methacrylates with at least one aromatic structural unit and with a refraction index greater than 1.50 at 405 nm, which are free of isocyanate groups and hydroxyl groups, (D) radical stabilisers, (E) photoinitators based on combinations of borate salts and one or more dyes with absorption bands which at least partially overlap the spectral region from 400 to 800 nm, (F) optionally catalyst and (G) optionally auxiliary substances and additives. The invention also describes a method of producing media for recording visual holograms, media for recording visual holograms, use of such a medium and a method of recording holograms. |
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Present invention relates to a two-component coating system at least comprising: (A) a polyisocyanate component consisting of (a) a polyisocyanate component based on an aromatic prepolymer having allophanate groups and (b) a polyisocyanate component based on (cyclo)aliphatic polyisocyanate, (B) amino functional cross-linking agents based on aromatic diamines, wherein up to 49 wt % of said amino functional cross-linking agents can be replaced with amino functional polymers based on aspartates. Also described is a coated substrate obtained using said system. |
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Polyurethane foam with low content of monomers Invention relates to single-component polyurethane foam with low content of monomers, suitable to encapsulation, isolation and/or mounting of junctions, surfaces of roof, windows and doors or for filling cavities. Composition contains a) from 10 to 90 wt % of prepolymers from polyesterdiols, obtained by reaction with excess of diisocyanate with the following removal of excess monomer diisocyanate, b) from 90 to 10 wt % of component based on polyether polyols, which have either, at least, one Si(OR)3-group, where -OR radical is selected from methoxy-, ethoxy-, propoxy, butoxy-radicals, or, at least, one NCO-group, c) from 0.1 to 30 wt % of additives, d) at least, one foaming agent. Both polyesterdiols and polyetherdiols have molecular weight (MN) less than 5000 g/mol, and mixture from a and b has content of monomer diisocyanate less than 2 wt %. Invention also relates to method of claimed composition obtaining and application of composition for obtaining linkable foams in container. |
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Polyurethane composition and its application for obtaining holographic media Claimed invention relates to polyurethane composition for obtaining holographic media. Claimed composition includes: A) polyisocyanate component; B) isocyanate-reactionable component, which includes, at least, 50 wt % calculated per the total mixtute of B) polyetherpolyols B1) with number average molecular weights higher than 1000 g/mol, which have refraction index nD 20<1.55 and contain one or several oxyalkyl links of formulae (I)-(III): -CH2-CH2-O- (I), -CH2-CH(R)-O- (II), -CH2-CH2-CH2O- (III), with R being alkyl or aryl residue, which can be substituted or broken with heteroatoms; C) compounds, which have refraction index nD 20>1.55 and contain groups, under action of actinic radiation reacting with ethylene-unsaturated compounds with polymerisation (radiation-solidified groups), and do not contain NCO-groups themselves; D) radical stabilisers; E) photoinitiators; F) catalysts if necessary; G) auxiliary substances and additives if necessary. Also described are: method of obtaining media for recording visual holograms, medium for recording visual holograms, application of such medium and method of hologram recording. |
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Claimed invention relates to biocompatible polyisocyanate macromer or mixture of macromers for application as glue or sealant for internal application, represented by formula: , where f equals two or more; a in the range from 1 to 5 and R1 represents , where d is in the range from 0 to 5 and c can be in the range from 1 to 100; R2 represents , where R3 represents linear or branched residue of water-soluble polymer, which forms ester bonds with R4 and urethane bonds with R1, when a equals one or more; and R4 represents linear or branched organic residue, which contains two or more carboxylate terminal groups, and x gives the number of repeating R4 and is in the range 2≤x≤6. Also described are biocompatible elastic gel, obtained by polymerisation of said macromer, composition, applicable for medicine, and method of internal wound closing. |
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Water-dispersible polyurethane, its application and cosmetic preparation Invention relates to water-dispersible polyurethane, method of obtaining thereof, thereof application and cosmetic preparation, containing polyurethane as thickening agent. Water-dispersible polyurethane contains mainly linear basic chains, consisting of alternating hydrophilic and hydrophobic sections. Polyurethane has two terminal sections (T), which are hydrophobic, and, at least, one hydrophobic terminal section (T) represents branched alkyl residue. Hydrophilic section (S) is directly attached to each section (T). At least, one hydrophobic section (D) is directly attached to, at least, one end of each of sections (S). The main polyurethane chain contains, at least, one hydrophilic section (P), and if there is more than one section (P), two sections (P) are separated with, at least, one hydrophobic section (D). Polyurethane contains, at least, three hydrophilic sections. Ratio of molecular weight of any of hydrophilic sections (S) to molecular weight of any of hydrophilic sections (P) lies within the interval from 1:1.4 to 1:70. At least, two hydrophobic sections (D) are aliphatic diisocyanate residues, and, at least, one hydrophilic section (P) represents residue of polyether with number average molecular weight, at least, 1500 g/mol. Polyurethane can represent mixture of different mentioned above polyurethanes. Polyurethanes are obtained in two steps. At the first stage interaction of, at least, one polyether diol with, at least, one aliphatic diisocyanate is realised in presence of zinc carboxylate in solvent medium. At the second stage obtained product is subjected to interaction with, at least, one ethoxylated aliphatic alcohol in solvent medium. After that, separation of solvents is performed and water is added. Polyurethanes are applied for manufacturing of water-containing cosmetic preparation. |
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Polyurethane prepolymer-based compositions based for production of holographic media Claimed invention relates to polyurethane composition for production of holographic media. Composition contains: (A) polyisocyanate component, which contains at least one polyurethane prepolymer with terminal NCO-groups exclusively on base of oligomeric or polymeric dysfunctional compounds, reaction-able with respect to isocyanates, with average molecular weights from 200 to 10000 g/mole, in which NCO-groups are bound with primary residues, (B) polymers, reaction-able with respect to isocyanates, (C) compounds, which contain groups, which when exposed to actinic irradiation react with ethylene-unsaturated compounds with polymerisation (radiation - solidified groups), and themselves do not contain NCO-groups, (D) stabilisers of radicals and (E) photoinitiators, with compounds, applied in component C), having refractive index nD 20>1.55. Also described are: method of producing medium of recording of visual holograms, application of such medium and method of hologram recording. |
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Cord processed by polyurea-urethanes Invention relates to production of drive belts with resilient cord embedded in elastomer substrate including polyurea-urethanes glue composition impregnating said cord and covering fibres. Composition is composed of the product of reaction of polyurethane prepolymer and diamines hardener or water. Said prepolymer represents the product of reaction of diisocyanate with compact symmetric molecules and complex polyetherpolyol, simple polyetherpolyol or polyol polycarbonate. Belt substrate can be made of moulded polyurethane, rubber or thermoplastic elastomer. Said cord can include adhesive coating. |
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Coating composition, including polyisocyanate and polyol Claimed invention relates to versions of non-water coating composition, in fact consisting of: (a) polyisocyanate, (b) polyol, with average functionality more than 3 hydroxyl groups per molecule, (c) metal-based solidification catalyst for reaction of binding isocyanate groups and hydroxyl groups, (d) mercaptocarboxylic acid and (e) volatile organic solvent, and coating composition does not contain carboxylic acid, in which carbonyl group of carboxylic acid is in conjugation with p-electron system. Also described are set of components for preparation of claimed coating composition, its application and method of coating application on substrate with use of said composition. |
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Polyurethane composition and use thereof to produce holographic media Present invention relates to a polyurethane composition for producing holographic media. Said composition contains: A) a polyisocyanate component; B) an isocynate reactive component, which contains hydroxy functional multi-block copolymers B1) of the type Y(Xi-H)n with i=1-10 and n= 2-8 and number-average molecular weight greater than 1000 g/mol, wherein segments Xi are respectively built from alkylene oxide links of formula (I): -CH2-CH(R)-O- formula (I), wherein R is hydrogen, an alkyl or aryl residue, which can be substituted or interrupted with a heteroatom (e.g. ether oxygen), Y is the base of the starter unit and the fraction of segments Xi relative the total amount of segments Xi and Y is at least 50 wt %; C) compounds having a refraction index nD 20>1.55 and contain groups which react under the action of actinic radiation with ethylenically unsaturated compounds with polymerisation (radiation-cured groups) and do not contain NCO- groups themselves; D) radical stabilisers; E) photoinitiators; F) optionally catalysts; G) optionally auxiliary substances and additives. The invention also describes a method of producing media for recording visual holograms, media for recording visual holograms, use of such a medium and a method of recording holograms. |
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Two-component solvent-free polyurethane adhesive with low content of free mdi monomer Polyurethane adhesive is obtained from a polyester-polyol component A and a polyurethane prepolymer (component B) based on MDI. Component A is obtained through an esterification reaction between a dibasic alcohol and a binary acid. Component B is obtained through a reaction between an MDI monomer and a polybasic alcohol with molar ratio NCO/OH=3-5.5:1.Component B is obtained by first dehydrating the polybasic alcohol to water content of less than 0.05 wt %. The MDI monomer and a chain-terminating agent are then added. The mixture is heated to temperature 70-80°C until the hydroxyl reacts completely. A trimeric catalyst for a trimerisation reaction is added before the reaction is complete. The adhesive has a high rate of hardening, high resistance to solvents and hydrolysis, as well as excellent operational characteristics. Since components A and B in the polyurethane adhesive do not contain a solvent, they meet environmental and energy efficiency requirements. Furthermore, since the polyurethane adhesive has excellent storage stability, it is well suited for transportation and application. |
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Method of producing flexible polyurethane foam Present invention relates to flexible polyurethane foam, which is characterised by density of 25-70 kg/m3 according to measurement in accordance with ISO 845, compression deformation at 40% (NSD) of 5-15 kPa according to measurement in accordance with ISO 3386/1 under the condition of measuring hardness during the first cycle, volume increase at water saturation (%) of at most 25, and water buffer capacity of 40-60%. The invention also describes production and use of said polyurethane foam, as well as a plant growth medium, a green wall and/or a green roof, having said foam material. |
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Pressure-sensitive adhesives having temperature-stable adhesive power Adhesive composition contains the following components: A) a mixture consisting of 20-85% polyurethane and 15-80% adhesion enhancing resin with number-average molecular weight of 200-5000 Da, B) 0.01-3% cross-linking catalyst. The polyurethane contains 2 hydrolysable alkoxysilane end groups and has the following formula: , where: R1 is a divalent hydrocarbon radical containing 5-15 carbon atoms; R2 is a divalent alkylene radical containing 1-4 carbon atoms; R3 is a divalent linear alkylene radical containing 1-3 carbon atoms; R4 and R5 is an alkyl radical containing 1-4 carbon atoms; n is an integer which is such that the number-average molecular weight of the polyether block of formula -[OR2]n- ranges from 300 Da to 30 kDa; m is an integer which is such that the number-average molecular weight of polyurethane ranges from 600 Da to 60 kDa; p equals 0, 1 or 2. A self-adhesive base is obtained by heating the adhesive composition at temperature in the range of 50 to 130°C, depositing the composition on a base layer and cross-linking the composition by heating the coated base at temperature of 50 to 150°C. |
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Invention relates to novel prepolymers which are obtained from diisocyanates and formamide-terminated oligomers, as well as to use of said prepolymers. The prepolymers have the following general formula X-[-N(CHO)-CO-NH-R1-NCO]n (I), in which R1 denotes an arylalkyl residue having 6-13 carbon atoms, or an alkylene residue having 4-13 carbon atoms, n equals an integer from 2 to 4, X denotes an n-valent organic residue, preferably a residue of formula Y-[-(CH2-CHR3-(CH2)p-O)m-CH2-CHR4-(CH2)o-]n- (II), in which Y denotes an n-functional, saturated residue having 2-6 carbon atoms, n assumes the value given above, R3 denotes hydrogen or methyl, R4 denotes hydrogen or methyl, m equals an integer from 2 to 30, o equals 0 or 1, p equals 0, 1 or 2. The obtained prepolymers are used to produce adhesives, lacquer, polyurethane moulded articles, polyurethane foam and sealants. |
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Method of producing reactive polyurethane emulsion Invention relates to a method of producing a reactive polyurethane emulsion for an impregnating composition and/or coating for textile surfaces, as well as soft polyurethane. The method of producing a reactive polyurethane emulsion involves reacting polyols with diisocyanates in a deficit, or polyols in combination with di- and/or triols with diisocyanates in a deficit to form medium-viscosity, OH group-terminated prepolymers. Further, the OH prepolymers are uniformly mixed with an external emulsifier. Water is then added to the mixture of the prepolymer and the emulsifier, and for subsequent cross-linking of the OH group-terminated prepolymers, a di-, tri- and/or polyisocyanate is added. If needed, polyols or polyisocyanates are mixed and reacted with corresponding fire-retardant, antibacterial, dirt-repellant or hydrophilic agents. The soft polyurethane obtained using said method and then dried has Shore hardness of 45-60. |
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Soil reinforcement composition Invention relates to two-component composition for soil reinforcement by injection. The composition contains an isocyanate component and a hydroxyl component in equal volumes. The isocyanate component is polyphenylene polymethylene polyisocyanate containing 30-31% NCO groups. The hydroxyl component is a homogeneous mixture of an alkoxylated alkane diol or triol, with molecular weight of 370-600 or a mixture thereof, alkane diol or alkoxylated alkane diol with molecular weight of 60-200 and a urethane-formation catalyst. The urethane-formation catalyst is selected from a group comprising diazabicyclooctane, tin dibutyl dilaurate, dimethyl ethanolamine and methyl diethanolamine. |
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Foamed polyurethanes with improved fatigue strength during repeated bending Invention relates to foamed polyurethane obtained by cross-linking: (a) polyisocyanates, (b) high-molecular weight compounds with groups that are reactive with respect to isocyanate groups, having average functionality of less than 2.5, (c) particles of a solid substance from radically polymerised polymers, dispersed in one of the high-molecular weight compounds with groups that are reactive with respect to isocyanate groups (b), (d) a blowing agent, (e) a chain-elongating agent, optionally a cross-linking agent or mixture thereof, (f) a catalyst and (g) optionally other additives, to form a reaction mixture and carrying out the reaction, wherein content of the chain-elongating agent is less than 6 wt % per total weight of components a) to f), and content of particles of the solid substance is higher than 15 wt % per total weight of components a) to f). The present invention also relates to a method of producing said foamed polyurethane, integrated foam plastic containing said foamed polyurethane, and use of such integrated foam plastic as a shoe sole. |
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Novel composition of polyisocyanate and polyether monoamine Invention relates to use of a composition obtained by reaction of polyisocyanate with index 100-250, which is diphenyl methane isocyanate, optionally containing a homologue which contains 3 or more isocyanate groups, and/or a version of such a diisocyanate with monoalkylether of polyoxyalkylene monoamine having average molecular weight of 550-3000 and content of oxyethylene higher than 50% by weight, calculated based on the weight of monoamine and an alkyl group having 1-4 carbon atoms as a plasticiser in thermoplastic and thermosetting materials which contain less than 50% hard units, and containing a certain number of urethane and/or urea groups. The invention also relates to a method of producing a plasticised thermoplastic or thermosetting material with content of hard units of less than 50%, which contains a certain number of urethane and/or urea groups, using said composition, as well as the material itself. |
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Elastomeric materials with high content of hard units and method for production thereof Invention includes a matrix substance which contains a plurality of urethane, urea and/or isocyanurate groups and having content of hard units of more than 50% (hereinafter matrix A), and a polymer substance which 1) does not contain groups which are capable of forming a urethane, urea or isocyanurate group upon reaction with an isocyanate group, 2) is interprenetrating with said matrix A and 3) is a reaction product of polyisocyanate and a polymer having number-average molecular weight greater than 500 and one group capable of reacting with isocyanate groups, with isocyanate index of 100-250 (hereinafter polymer substance B), and wherein the weight ratio of all ingredients used to produce said matrix A and said polymer substance B ranges from 10:90 to 90:10. Methods of producing said elastomeric material are also disclosed. |
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Water-based polyurethane coatings Present invention relates to versions of a water-based coating composition which is suitable for use particularly in the aerospace field. The water-based coating composition contains: (a) an essentially anhydrous basic component containing at least one hydrophilic polyol resin and at least one hydrophobic polyol resin, (b) an activating component containing at least one hydrophobic polyisocyanate and (c) water, wherein said composition contains 1-3 wt % of an organic solvent of the total weight of the water-based coating composition and component (a), (b) and (c) are mixed shortly before applying the water-based coating composition. In one version of the composition, the hydrophilic polyol resin can be selected from a group consisting of polyesters, polyethers, polyurethanes, caprolactones, alkyde resins and combinations thereof. Described also is a coating made using the polyurethane compositions disclosed herein. |
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Non-ionically hydrophilised binding dispersions Aqueous dispersion contains the following structural components: (A) 10-40 wt % of one or more aliphatic polyisocyanate compounds; (B) 40-70 wt % of at least one polyhydroxy compound having molecular weight Mn ranging from 400 g/mol to 8000 g/mol; (C) 19-49 wt % of a non-ionically hydrophilising monofunctional polyoxyalkylene ether which contains only one hydroxyl or amino group and 50-100 wt % of structural components derived from ethylene oxide, and having molecular weight Mn ranging from 1200 g/mol to 3000 g/mol; (D) 0.5-10 wt % of at least one polyamine compound having molecular weight Mn ranging from 32 g/mol to 400 g/mol and functionality greater than or equal to 1; (E) 0.5-10 wt % of a polyhydroxy compound having molecular weight Mn ranging from 62 g/mol to 320 g/mol and functionality greater than or equal to 1; and (F) 0-10 wt % of auxiliary substances and additives; wherein the sum of said structural components (A) through (F) equals 100 wt %. |
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Method of producing fluorine-containing prepolymer having isocyanate groups Invention relates to a method of producing a fluorine-containing prepolymer having isocyanate groups of general formula: , which can be used as a modifier of carbo- and hetero-chain polymers, to produce materials having high hydrolytic and thermal stability. Said method involves reaction of a polymethylene polyphenylene isocyanate having content of isocyanate groups of 29.5-31.0% with 1,1,9-trihydroperfluorononanol-1 in the presence of catalytic amounts of di-n-butyltin dilaurate in molar ratio of 1:0.5:0.007, respectively, in a medium of o-dichlorobenzene and chloroform in volume ratio of 2:1, at temperature of 50°C, ultrasound frequency 40 kHz for 3 hours. |
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Method for combined production of fluorine-containing prepolymers Invention relates to a method for combined production of fluorine-containing prepolymers of the following general formulae: in molar ratio 83(I):12(II+III):5(IV), respectively, which can be used as a modifier of carbo- and heterochain polymers, to produce materials having high hydrolytic and thermal stability. Said method involves reaction of a 4,4'-diphenylmethane diisocyante with 1,1,5-trihydroperfluoropentanol-1 in the presence of catalytic amounts of di-n-butyltin dilaurate in molar ratio of 1:1:0.005, respectively, in a medium of chlorobenzene and n-hexane in volume ratio of 8:1, at temperature of 80°C, ultrasound frequency 40 kHz for 2 hours. |
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Method of producing fluorine-containing prepolymer having isocyanate groups Invention relates to a method of producing a fluorine-containing prepolymer having isocyanate groups of general formula: , which can be used as a modifier of carbo- and hetero-chain polymers, to produce materials having high hydrolytic and thermal stability. Said method involves reaction of polymethylene polyphenylene isocyanate having content of isocyanate groups of 29.5-31.0% with trifluoroacetic acid in the presence of catalytic amounts of di-n-butyltin dilaurate in molar ratio of 1:0.3:0.003, respectively, in a medium of o-dichlorobenzene at temperature of 70°C, ultrasound frequency 40 kHz for 6 hours. |
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Method for combined production of fluorine-containing prepolymers Invention relates to a method for combined production of fluorine-containing prepolymers of the following general formulae: in weight ratio of 90(1):3(II):7(III), respectively. Said method involves reaction of a hexamethylene diisocyanate trimer having content of isocyanate groups of 21.8±0.3% with 1,1,7-trihydroperfluoro-heptanol-1 in the presence of catalytic amounts of di-n-butyltin dilaurate in molar ratio of 1:1:0.005, respectively, in a medium of nitromethane and n-hexane in volume ratio of 1:6, at temperature of 90°C, ultrasound frequency 40 kHz for 2 hours. |
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Method of producing fluorine-containing prepolymer having isocyanate groups Invention relates to a method of producing a fluorine-containing prepolymer having isocyanate groups of general formula: , which can be used as a modifier of carbo- and hetero-chain polymers, to produce materials having high hydrolytic and thermal stability. Said method involves reaction of a hexamethylene diisocyanate trimer having content of isocyanate groups of 21.8±0.3% with trifluoroacetic acid in the presence of catalytic amounts of di-n-butyltin dilaurate in molar ratio of 1:1:0.003, respectively, in a medium of o-dichlorobenzene at temperature of 70°C, ultrasound frequency 40 kHz for 2 hours. |
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Present invention relates to an aqueous polyurethane-polyurethane-urea dispersion which is used as a starting adhesive material in dispersion adhesives, as well as a method of producing such a dispersion, use thereof, adhesive compositions containing said dispersion and adhesive composite materials. The aqueous polyurethane-polyurethane-urea dispersion is composed of: A) one or more di- or higher functional polyols, having average molecular weight of 400-5000 Da, B) optionally one or more di- or higher functional polyol components, having molecular weight of 62-399 Da, C) one or more di- or higher polyisocyanate components, and D) a mixture (D) of primary and/or secondary monoamine compounds D1) and primary and/or secondary diamine compounds D2), wherein at least one of the components (D1) and/or (D2) contains sulphonate groups, wherein the average amine functionality of the mixture (D) is 1.65-1.95, and the equivalent ratio of NCO groups in the NCO prepolymer and total number of amine and hydroxyl groups of the mixture (D) which react with the isocyanate is equal to 1.04-1.9. |
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Present invention relates to an aqueous polyurethane-polyurethane-urea dispersion which is used as a starting adhesive material in dispersion adhesives, as well as a method of producing such a dispersion, use thereof, adhesive compositions containing said dispersion and adhesive composite materials. The aqueous polyurethane-polyurethane-urea dispersion is composed of: A) one or more di- or higher functional polyols, having average molecular weight of 400-5000 Da, B) optionally one or more di- or higher functional polyol components, having molecular weight of 62-399 Da, C) one or more compounds which are monofunctional when reacting with a polyisocyanate and which have ethylene oxide content of at least 50 wt % and molecular weight of at least 400 Da, D) one or more di- or higher polyisocyanate components, and E) a mixture (E) of primary and/or secondary monoamine compounds E1) and primary and/or secondary diamine compounds E2), wherein at least one of the components (E1) and/or (E2) contains sulphonate groups, wherein the average amine functionality of the mixture (E) is 1.65-1.98, and the equivalent ratio of NCO groups in the NCO prepolymer and the total number of amine and hydroxyl groups of the mixture (E) which react with the isocyanate is equal to 1.04-1.9. |
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Coating compositions containing polyurea and phosphorus-containing polyol Present invention relates to a double-component coating composition (2C), as well as a coated article, a method of making a coated article and use of material which contains a phosphorus-containing polyol as a fireproof material in the disclosed composition. The composition contains: (a) first component containing isocyanate, wherein said isocyanate contains a prepolymer having isocyanate functional groups formed from a reaction mixture containing isocyanate and a material containing a phosphorus-containing polyol with the equivalent ratio of isocyanate groups to hydroxyl groups greater than 1 and the phosphorus-containing polyol which acts as fireproof material is (i) a product of reaction of the source phosphorus-containing polyol, selected from polyphosphate polyols, polyphosphite polyols, polyphosphonate polyols and mixtures thereof and compounds having epoxy functional groups; or (and) a product of reaction of a phosphorus-containing acid, a compound having epoxy functional groups and, optionally, a phosphorus-containing polyol; and (b) a second component containing a polyamine, wherein the first and second components are stored separately and form polyurea after mixing and the composition further contains an additional fireproof material which is added to the first and/or second component and is selected from graphite, halogenated phosphates, phosphates without a halogen, tris(2-chloropropyl)phosphate, tris(2,3-dibromopropyl)phosphate, tris(1,3-dichloropropyl)phosphate, diammonium phosphate, powdered or pyrogenic silicon dioxide, sheet silicates, aluminium hydroxide, bromated fire-retardants, halogenated aromatic compounds, antimony oxide, aluminium oxide trihydrate, metal borates, zinc borate, barium metaborate pentahydrate, ester phosphates, polyvinyl chloride, melamine cyanurate, melamine phosphates, polymelamine phosphates, melamine pyrophosphates, polylmelamine pyrophosphates, melamine borate, other melamine derivatives and mixtures of compounds. |
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Polycarbonate polyols and use thereof to produce polyurethane and polyurethane carbamide elastomers Polycarbonate polyols have hydroxyl number from 50 to 80 mg KOH/g and average functionality from 1.9 to 2.2. Polycarbonate polyols are obtained by reacting a mixture of α,ω-alkanediols with 4-8 carbon atoms, technical dodecanediol and alkanols with 4-10 carbon atoms and hydroxyl functionality from 1 to 3 with a carbonyl component. Technical dodecanediol contains 30-50 wt % 1,12-dodecanediol, 5-20 wt % diols with less than 10 carbon atoms and does not contain diols with more than 12 carbon atoms. Polyurethane and polyurethane carbamide elastomers are obtained by reacting NCO prepolymers obtained when reacting said polycarbonate polyols with polyisocyanates, with aliphatic diols or with aromatic, diamine chain elongation agents. |
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Claimed invention relates to method of obtaining rigid polyurethane foam plastic, including (a) obtaining reaction mixture, and b) creation for reaction mixture such of such conditions that reaction mixture expands and is solidified with formation of rigid polyurethane foam plastic. Reaction mixture contains, at least, (1) mixture of initiated with amine polyol, which has average functionality from 3.3 to 4.0 and hydroxyl equivalent weight from 75 to 560, which is a product of interaction of, at least, one C2-C4 alkylene oxide with, at least, one initiating orthocyclohexanediamine compound, and , at least, one simple polyester polyol, which has average functionality from 4.5 to 7.0 and hydroxyl equivalent weight from 100 to 175, on condition that said mixture contains, at least, 5 wt % from mixture of polyols of said initiated with amine polyol, (2) water in amount from 0.5 to 3.5 wt fractions, per 100 wt fractions, polyols, (3) at least, one foaming agent, which is hydrocarbon, hydrofluorocarbon, hydrochlorofluorocarbon, fluorocarbon, dialkyl ester of fluorine-substituted dialkyl ester in amount from 10 to 40 wt fractions per 100 wt fractions, polyols, and (4) at least, one polyisocyanate. |
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Polyurethane elastomer and method of its obtaining Claimed invention relates to casting polyurethane elastomer and to method of its obtaining. Said elastomer includes product of reaction: (a) of prepolymer with end NCO-groups, (b) aliphatic diisocyanate and (c) aromatic di- or polyamine, where reagents are present in such amounts that equivalent ratio of NCO-groups to the sum of reaction-able NCO-groups is in the interval from 0.8:1 to 1.2:1. Component (a) is obtained by interaction of: (1) diphenylmethanediisocyanate with content of 2,4'-MDI-isomer more than 80 wt %, with (2) highly molecular polyol, selected from group, consisting of polyoxyalkylenepolyols with the mean molecular weight from 250 to 10000, complex polyester polyols with mean molecular weight from 250 to 10000, and their mixtures, at temperature from 30°C to 150°C, during time sufficient for formation of prepolymer with end NCO-groups, OH-groups of said polyol reacting with NCO-groups of said diphenylmethane diisocyanate in the range from 1.5 : 1 to 20 : 1. Component (b) is selected from group, consisting of isomers of 1,1'-methylenebis(4-isocyanatocyclohexane), 1,4-cyclohexane diisocyanate, isoforon diisocyanate, 1,3-xilylene diisocyanate, hexamethylene diisocyanate, isomers of m-tetramethylxylylene diisocyanate (TMXD1), their mixtures and their prepolymers. |
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Invention relates to aqueous compositions for gluing substrates, a method of obtaining such compositions, as well as a method of making latent-reactive coatings, films and powders from said compositions. The aqueous compositions for gluing substrates contain: polymers dispersed in water, having groups capable of reacting with isocyanate, such as urethane groups and urea groups; at least one dispersed solid aliphatic polyisocyanate which is not surface-active, with softening temperature higher than or equal to 40°C; one or more compounds of group (subgroup) 5 and 6 elements, in which the oxidation state of said element is at least +4; and optionally other additives and auxiliary materials. |
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Fixing composition for primer charges of antitank grenades Composition contains the following in pts.wt: 100 bifunctional prepolymer with terminal isocyanate groups, 10.6-12.8 - 3,3'-dichloro-4,4'-diaminodiphenylmethane, 15.9-19.2 dioctylsebacate, 1.2-1.4 - 1,4-butanediol, 0.31-0.35 - para-phenylenediamine and 0.015-0.030 - Agidol 51,52,53 (mixture of 2-dimethylaminomethylphenol, 4-dimethylaminophenol, 2,6-bis (dimethylaminomethyl)phenol, 2,4-bis-(dimethylaminomethyl)phenol,2,4,6-tris-dimethylaminomethyl)phenol. |
Another patent 2551273.