Abstract: The invention relates to inverse emulsions, comprising a) a hydrophobic liquid as a continuous phase, b) water as a disperse phase, and c) a compound of the formula (1), where R1 is a hydrocarbon group having between 6 and 30 C atoms or a group R5—O—X-M hydrogen, alkali metal, alkali earth metal, or an ammonia group, and where R5 is a hydrocarbon group having between 6 and 30 carbon atoms, X is C2-C6-alkylene or a poly(oxyalkylene) group of the formula, where l is a number between 1 and 50, m and n are numbers independent of l and of each other between 0 and 50, and R2, R3, R4 are independent of each other and is hydrogen, CH3, or CH2CH3, and Y is C2-C6-alkylene.

Abstract: The invention relates to the use of vinyl phosphonic acid or a salt thereof for improving the biodegradability of mixed polymers, comprising 25 to 99.5% by weight of structural units of one or more monomers selected from the group made of compounds of formula (1) and formula (3), where R1 and R2 independently are hydrogen or C1-C4-alkyl, formula (4), where n is 3, 4, or 5, and formula (5), where X is OH or for NR3R4, and R3 and R4 independently are H or C1 to C4-alkyl, in that 0.5 to 25% by weight of vinyl phosphonic acid is polymerized into the mixed polymer.

Abstract: The invention relates to a copolymer containing: i) 80-90% by weight of one or more structural units of the formula A, where R1 is hydrogen or methyl, R2 is C2-C10-alkylene, and Me+ is an ammonium or an alkali metal ion; ii) from 1 to 10% by weight of one or more structural units of the formula B where R3 and R4 are each independently hydrogen, methyl or ethyl; iii) from 1 to 10% by weight of one or more structural units of the formula C, where n is a number from 1 to 6; iv) from 0.1 to 5% by weight of structural units of the formula D where X is hydrogen, an ammonium ion or an alkali metal ion; and optionally, v) from 0 to 10% by weight of one or more structural units of the formula E, where R5 is hydrogen, methyl and/or ethyl, with the proviso that the content in the copolymers of structural units B) and C) is from 6 to 15% by weight.

Abstract: The invention relates to compositions comprising copolymers based on acryloyldimethyltaurine and also synergistic additives selected from anionic, cationic, nonionic, and betaine surfactants. The compositions exhibit a pronounced thermoassociative behavior and are outstandingly suitable as thickeners. The copolymers of the present invention are useful in formulating cosmetics, pharmaceuticals, and oil field chemicals.

Abstract: The invention relates to a copolymer containing i) 80-90% by weight of one or more structural units of the formula A where R1 is hydrogen or methyl, R2 is C2-C10-alkylene, and Me+ is an ammonium or an alkali metal ion, ii) from 1 to 10% by weight of one or more structural units of the formula B where R3 and R4 are each independently hydrogen, methyl or ethyl, iii) from 1 to 10% by weight of one or more structural units of the formula C, where n is a number from 1 to 6 iv) from 0.1 to 5% by weight of structural units of the formula D where X is hydrogen, an ammonium ion or an alkali metal ion, and optionally v) from 0 to 10% by weight of one or more structural units of the formula E where R5 is hydrogen, methyl and/or ethyl, with the proviso that the content in the copolymers of structural units B) and C) is from 6 to 15% by weight.

Abstract: Compositions comprising copolymers based on acryloyldimethyltaurine and synergistic additives

Abstract: The invention provides water-soluble copolymers without crosslinking, consisting of the following components: A 5-95% by weight of bivalent structural units derived from acrylamidopropenylmethylenesulfonic acid or its salts, B 1-45% by weight of bivalent structural units derived from open-chain N-vinylamides, C 1-45% by weight of bivalent structural units derived from cyclic N-vinyl-substituted amides, and if desired D 0-50% by weight of a further comonomer selected from the group consisting of acrylamide, acrylic acid and acrylonitrile, the components A to C and, if present, D adding up to 100% by weight.