Abstract: Oxidatively cross-linkable, water dilutable binders suitable for lacquers, coating compositions and sealing compounds are modified co-polymers of olefinically unsaturated compounds, having a molecular weight of 6000 to 160,000 and having for each 100 grams of solids content, a total of from60 to 250 milliequivalents of chemically incorporated carboxyl groups, of which from 10 to 100% are neutralized thereby rendering the product dilutable in water andfrom 15 to 50% by weight of chemically incorporated moieties corresponding to the formula--O--RwhereinR represents an olefinically monounsaturated or polyunsaturated aliphatic hydrocarbon having a molecular weight above 166 and containing from 12 to 22 carbon atoms, are prepared by:(a) preparing a co-polymer having a molecular weight from 5000 to 80,000, determined by gel permeation chromatography, and having intramolecular carboxylic acid anhydride units corresponding to the formula ##STR1## and an anhydride equivalent weight of from 240 to 1960 by a radically i

Abstract: A moisture-hardening binder composition for lacquer of coating compositions is prepared by mixing(A) 50 to 97 parts by weight of copolymers of maleic anhydride with olefinically unsaturated monomers, said copolymers containing succinic anhydride units and having molecular weights Mw of 1,500 to 75,000 with(B) 3 to 50 parts by weight oxazolanes having a molecular weight Mw of 87 to 10,000,the quantitative ratios of (A) to (B) being such that the composition contains 0.25 to 10 anhydride groups for every oxazolane group,wherein component (A) consists essentially of copolymers of(a) 4.5 to 45 parts by weight of maleic anhydride,(b) 5 to 80 parts by weight of monomers of the formulae ##STR1## or both, and (c) 15 to 92 parts by weight of monomers of the formula ##STR2## wherein, R.sub.1 and R.sub.4 is each, independent of the other, an aliphatic or cycloaliphatic C.sub.1 -C.sub.12 hydrocarbon radical with or without oxygen, sulfur or nitrogen as a heteratom, R.sub.

Abstract: A binder for a coating composition is a combination of(a) polymers containing intramolecular carboxylic anhydride groups and having an average molecular weight of from 500 to 25,000 and(b) organic compounds containing 4,5-dihydrooxazole groups in a quantity corresponding to an equivalent ratio of carboxylic anhydride groups to 4,5-dihydrooxazole groups of from 0.5:1 to 2:1, and contains from 0.005 to 5% by weight, based on the weight of components (a) and (b), of ammonia, a primary amine or secondary amine.

Abstract: The invention is directed to a process for the preparation of prepolymers containing free isocyanate groups and having an isocyanate content of 1 to 16% by weight by the reaction of(a) a polyisocyanate component with(b) a polyhydroxyl component based on (i) at least one polyester polyol having a hydroxyl functionality (average) of about 1.8 to 5 and a hydroxyl number (average) of from 15 to 300 or (ii) mixtures of polyester polyols of the type mentioned under (i) with up to about 10% by weight, based on the weight of the mixture, of (cyclo)alkane polyols having a hydroxyl number above about 300 and optionally containing ester groupsat an NCO/OH equivalent ratio above 2:1, characterized in that the compounds used as component (a) contain triisocyanato-isocyanurates having aliphatically or cycloaliphatically bound isocyanate groups. The present invention also relates to the prepolymers with free isocyanate groups obtainable by this process and their use as binders for moisture hardening one-component lacquers.

Abstract: The present invention is directed to a process for the preparation of an oligourethane and free isocyanate groups which soluble in aromatic solvents and suitable as a lacquer binder by reacting an organic diisocyanate with a high molecular polyol and a low molecular weight polyol which contains 2,2,4-trimethylpentane-1,3-diol, its ethoxylation and/or propoxylation products or addition products of this low molecular weight diol with .epsilon.-caprolactone. The present invention is also directed to oligourethanes produced by this process and to their use as the binder or binder component in moisture hardening one-component lacquers.

Abstract: The present invention is directed to a process for the preparation of a diisocyanate by reacting a diisocyanate with 2,2,4-trimethyl-pentanediol-(1,3) or reaction products of this diol which contain either ether or ester groups and optionally other diols or triols. The present invention is additionally directed to the diisocyanates produced by this process and to their use in one-component and two-component coating compositions.

Abstract: The present invention relates to a process for the preparation of alkoxylation products of organic carboxylic acids containing alcoholic hydroxyl groups by the reaction of any organic compounds containing at least one carboxyl group with alkylene oxides in an alkoxylation reaction in the presence of catalysts, characterized in that the catalysts used are phase transfer catalysts selected from the group consisting of(a) tetraalkylammonium or tetraalkylphosphonium halides in which the sum of carbon atoms of the alkyl groups is at least 8,(b) basic alkali metal compounds converted into complexes with crown ethers and(c) complexes of (i) basic alkali metal compounds and (ii) acyclic organic compounds containing at least 5 alkylene oxide units of the formula --R--O-- (R=C.sub.1 -C.sub.

Abstract: The present invention is directed to cross-linkable, hydroxyl group-containing polymer resins which are obtained by copolymerizing olefinically-unsaturated monomers and are suitable as binder components for lacquers, the polymer resins having a hydroxyl number of about 20 to 400, an average osmometrically-determined molecular weight of about 500 to 30,000 and a molecular inhomogeneity U of about 0.5 to 15, characterized in that they contain about 0.2 to 80% by weight, preferably about 10 to 70% by weight, based on the total weight of the copolymers, of incorporated monomers selected from olefinically- and acetylenically-unsaturated aliphatic diols having 4 carbon atoms, the ether group-containing alkoxylation products thereof with a hydroxyl number of about 50 to 900, the reaction products of these diols with .epsilon.-caprolactone in a mol ratio of diol:-caprolactone of about 1:0.2 to 1:10 and any mixtures of these components.

Abstract: The present invention is related to compositions containing isocyanatosilanes as additives to increase the stability in storage of liquid or pasty, clear or pigmented compositions containing polyurethane prepolymers with free isocyanate groups and optionally containing solvents.

Abstract: A reaction product of an acrylate resin containing glycidyl groups and secondary mono-amines containing hydroxyl groups, obtained by reacting of said acrylate resin of copolymerized, statistically distributed units of(A) 3 to 30% by weight of the glycidyl ester of (meth)acrylic acid and/or of vinyl glycidyl ether;(B) 0 to 20% by weight of at least a hydroxy C.sub.2 -C.sub.4 alkyl ester of (meth)acrylic acid;(C) 5 to 80% by weight of at least an optionally substituted styrene, methyl methacrylate, (meth)acrylonitrile or any mixture thereof;(D) 5 to 70% by weight of an acrylic acid C.sub.1 -C.sub.12 -alkyl-or of a methacrylic acid C.sub.2 -C.sub.12 -alkyl ester or any mixture thereof; and(E) 0 to 10% by weight of an .alpha.,.beta.-mono-olefinically unsaturated monocarboxylic or dicarboxylic acid containing from 3 to 5 carbon atoms or of a maleic acid C.sub.2 -C.sub.14 -mono ester or any mixture thereof,with at least one secondary mono-amine containing at least one secondary hydroxyl group.

Abstract: Reaction products of alkyd resins and/or oil-free polyesters, (meth) acrylic acid copolymers and polysiloxans are excellent binders for high quality lacquers particularly for surface lacquers used in the motor car industry.