Abstract: Aqueous, radiation-curable urethane acrylate emulsion and a method of preparing, wherein the urethane acrylate emulsion is prepared by:mixing a cyclic polyisocyanate with water at a ratio of NCO equivalents to H.sub.2 O moles of about 10-20:0-1, to form an NCO-containing urea polyisocyanate;reacting the NCO-containing urea polyisocyanate with hydroxyethylacrylate at an equivalent ratio of NCO to OH of about 15-20:10-15, to form an NCO-containing urethane urea acrylate;reacting the NCO-containing urethane urea acrylate with a polyol in the absence of solvent, at a temperature in the range of 50.degree.-100.degree. C., to form an essentially NCO-free resin; andemulsifying the essentially NCO-free resin in water containing a hexose alkoxylate ester of an unsaturated fatty acid as a nonionic surfactant, to give an aqueous, radiation-curable urethane acrylate emulsion which upon curing gives a product which is odorless, waterproof, solvent-resistant, and has excellent mechanical properties.

Abstract: Aqueous two-component systems based on epoxide resins and diamines, containing water in an amount of 1 to 20 wt. % which are prepared by mixing: (a) as a curing agent, a (cyclo)aliphatic di-primary-diamine having 2 to 12 carbon atoms, in homogeneous solution with 2-40 wt. % water, (b) as an epoxide resin component, (i) a polyglycide compound of a bisphenol, an aliphatic polyol, a polyether polyol, a dicarboxylic acid, or a mixture of these polyglycide compounds and (ii) a polyacrylate of a polyol or a polyether polyol, have a low water content, are cold-curable, yield elastic coatings with good solvent resistance, and may be applied in thick layers and with a high filler content. The systems may be used for coating inorganic and organic materials.

Abstract: Radiation-curable urethane-acrylate dispersions are obtained by emulsifying a reaction product of (A) an NCO-containing urethane acrylate prepared by reacting isophorone diisocyanate with a hydroxylcrylate and (B) a COOH-containing ester polyol prepared from polyol and an anhydride, such as trimethyladipic anhydride, maleic anhydride or succinic anhydride.

Abstract: A polyurethane coating composition comprising:(a) a synthetic organic polymer containing at least two hydroxyl groups,(b) a polyisocyanatoisocyanurate having the formula: ##STR1## wherein the R groups may be the same or different and are selected from the group consisting of divalent hydrocarbon radicals having the formulas: ##STR2## and n represents a whole or a fractional number from 1 to 5, and (c) optionally, conventional auxiliary agents selected from the group consisting of solvents, dispersing agents, pigments, fillers, and spreading agents, can be subjected to cold or hot curing, and provides a cured coating composition having good resistance to thermal oxidation, good solvent resistance and good mechanical film properties.

Abstract: A storage-stabile, radiation-hardenable, NCO-free aqueous emulsions based on ionic urethane-urea acrylates is disclosed. The emulsions are made up of partially acrylated cycloaliphatic polyisocyanates which have been acrylated by a hydroxyalkyl acrylate (to the extent of 10-60 equivalent-% NCO). These products are then reacted with polyhydroxy compounds (to the extent of 20-75 equivalent-% NCO), and then with sodium salts of aminocarboxylic acids (to the extent of 5-15 equivalent-% NCO), and finally they are reacted with water and/or aliphatic diamines (said aliphatic diamines in amounts corresponding to 1-5 equivalent-% NCO).

Abstract: A storage-stable, substantially NCO-free urethane urea acrylate which after radiation curing forms strongly adhering, solvent resistant, wear resistant coatings containing isophorone diisocyanate (IPDI) or adducts thereof which have been partially acrylated with one or more hydroxyacrylates to the extent of about 10-25 equivalent %, which material subsequently has been reacted to the extent of about 10-75 equivalent % with one or more polyhydroxy compounds, wherein the remaining NCO equivalents have been fixed with urea bonds with one or more primary or secondary diamino compounds having about 2 to 18 carbon atoms.

Abstract: Moisture-hardening varnishes which have an isocyanate resin base of adducts of a mixture of diisocyanates, wherein the diisocyanate mixture has 88 to 99% by weight of 2-methyl-1,5-diisocyanatopentane and 12 to 1% by weight of 2-ethyl-1,4-diisocyanatobutane.These varnishes exhibit excellent thermal and oxidative stability and have excellent storage stability. They also exhibit excellent compatibility with solvents, pigments and other auxiliary materials.

Abstract: A process of producing storage-stable urethane acryls which comprises:(A) forming a prepolymer by reacting one isocyanate group of a cycloaliphatic diisocyanate having two isocyanate groups of substantially different reactivity, with a single NCO reactive hydroxy group-containing acrylic compound which is additionally polymerizable;(B) reacting said prepolymer with a multifunctional polyol to thereby obtain a substantially NCO-free urethane acryl. Acryl urethanes produced can be used as hot melts or in mixtures with reactive diluents for coatings of plastics, metals, wood, pressboards, glass, leather, concrete, and the like.

Abstract: An improvement in a process for the preparation of a solvent-free exclusively aqueous dispersion of a thermally linkable, storage stable, light stable polyurethane obtained by the reaction of a hydroxy group containing polyester composition and a diisocyanate in a ketonic solvent at 10.degree.-50.degree. C. employing the hydroxyl containing polyester and diisocyanate in amounts such that there are 1.5-2.0 NCO equivalents per OH group and the reaction product is thereafter reacted with a primary diamine, secondary diamine or diol in such an amount that 30-70% of the existing free NCO groups on said reaction product are reacted and the resultant reaction product is dispersed in water and said ketonic solvent is removed. The invention resides in that one uses as diisocyanate the uretdione of the 3-isocyanatomethyl-3,5,5-trimethylcyclohexyl-isocyanate.

Abstract: Lubricant comprising in admixture a monomeric ester of a branched dicarboxyic acid and aliphatic, primary monoalcohol, and a complex ester of dicarboxylic acid and hexanediol or trimethyl hexanediol.

Abstract: Single-component polyurethane varnishes having long shelf life containing conventional solvents and the reaction product of 3-isocyanatomethyl-3,5,5-trimethylcyclohexylisocyanate (IPDI) and branched polyesters containing terminal hydroxyl groups. The polyesters contain intermolecular tin and are based on mixtures of aliphatic and aromatic dicarboxylic acids, 15 to 85 mole percent of the acids being aliphatic, the balance aromatic. The polyester and IPDI are reacted without catalysts at temperatures of 10.degree. to 35.degree. C and in such quantities that there are two isocyanate group for each --OH group.

Abstract: Methyl isobutyl ketone is produced in a one-step process by contacting acetone and hydrogen at a temperature of from about 50.degree.-200.degree.C and a pressure between 50-100 atm, preferably 60-100 atm, in the presence of a catalyst composed of a cation exchange resin having from 0.001 to 0.1 weight percent of a noble metal distributed in monoatomic form therein.

Abstract: Stable, cross-linked polyurethane aqueous dispersions are prepared byI. reacting branched polyesters having terminal hydroxyl groups and 3-isocyanto-methyl-3,5,5-trimethylcyclohexyl isocyanate in inert solvents at temperatures of from 10.degree. to 50.degree.C, said isocyanate being used in an amount such that there are from 1.4 to 2.0-NCO equivalents per --OH group equivalent;Ii. reacting the initial reaction product from (i) with primary or secondary diamines or diols in an amount such that from 30 to 70% of the --NCO group present in said initial reaction product are reacted;Iii. reacting the second reaction product from (ii) with aqueous solutions of sodium salts of monobasic aminoacids such that from 15 to 30% of the --NCO group present in said second reaction product are reacted; andIv. removing the inert solvent by distillation.

Abstract: A polyurethane coating lacquer composition for substrates such as wood, metal, concrete, leather and plastics includes conventional solvents andI. the reaction product of 3-isocyanatomethyl-3,5,5-trimethylcyclohexyl-isocyanate with branched chain polyesters having terminal hydroxyl groups based on mixtures of aliphatic and aromatic dicarboxylic acids, said polyester and said isocyanate being reacted without a catalyst at 10.degree.-35.degree.C. in such quantities that there are two isocyanate groups per --OH group, and 15-85 mol percent of the dicarboxylic acids are aliphatic and the remainder aromatic acids; andIi. an aldime having the formula ##SPC1##Wherein each R is the same or different alkyl having 1 to 8, preferably 1 to 4 carbon atoms.