Abstract: Agglomerated polymer particles of finely divided, water-soluble or water-swellable polymers containing ammonium carboxylate groups are prepared by azeotropic removal of water from water-in-oil emulsions of the water-soluble or water-swellable polymers which contain ammonium carboxylate groups in the presence of from 0.1 to 40% by weight, based on the polymers, of polyalkylene glycols which have an agglomerating effect and which are obtainable by an addition reaction of C2-C4-alkylene oxides with alcohols, phenols, amines or carboxylic acids and contain at least two polymerized alkylene oxide units and additionally of from 0.1 to 20% by weight, based on the polymers, of protective colloids which are obtainable by free radical copolymerization of C8-C40-monoolefins with monoethylenically unsaturated C4-C6-dicarboxylic anhydrides by a mass polymerization method at from 80 to 300° C.

Abstract: Agglomerated polymer particles of finely divided, water-soluble or water-swellable polymers containing ammonium carboxylate groups are prepared by azeotropic removal of water from water-in-oil emulsions of the water-soluble or water-swellable polymers which contain ammonium carboxylate groups in the presence of from 0:1 to 40% by weight, based on the polymers, of polyalkylene glycols which have an agglomerating effect and which are obtainable by an addition reaction of C2-C4-alkylene-oxides with alcohols, phenols, amines or carboxylic acids and contain at least two polymerized alkylene oxide units and additionally of from 0.1 to 20% by weight, based on the polymers, of protective colloids which are obtainable by free radical copolymerization of C8-C40-monoolefins with monoethylenically unsaturated C4-C6-dicarboxylic anhydrides by a mass polymerization method at from 80 to 300° C.

Abstract: Copolymers I carrying functional groups and comprising a) 20-60 mol % of at least one monoethylenically unsaturated C4-C6-dicarboxylic acid or an anhydride thereof, b) 10-70 mol % of at least one oligomer of propene or of a branched 1-olefin of 4 to 10 carbon atoms, having an average molecular weight Mw of from 300 to 5000, and c) 1-50 mol % of at least one monoethylenically unsaturated compound which is copolymerizable with the monomers a) and b), a process for their preparation, oil-soluble reaction products obtainable therefrom by reaction with an amine and the use of said reaction products as additives for lubricants and fuels.

Abstract: Aqueous solutions or aqueous emulsions of copolymers are obtainable by copolymerization of (a) from 20 to 95 mol % of at least one monoethylenically unsaturated C4-C12-dicarboxylic acid or the anhydride thereof with (b) from 5 to 80 mol % of at least one branched oligomer or polymer which has a vinyl, vinylidene or alkylvinylene terminal group and is of at least 9 carbon atoms and (c) from 0 to 50 mol % of at least one further monoethylenically unsaturated compound which is copolymerizable with the monomers (a) and (b) and contain from 0.5 to 70% by weight, based on the total amount of the solutions or emulsions, of these copolymers. These copolymer solutions or emulsions are suitable as leather assistants and as dispersants for pigments.

Abstract: Copolymers I carrying functional groups and comprising

Abstract: Copolymers I carrying functional groups and comprising a) 20-60 mol % of at least one monoethylenically unsaturated C4-C6-dicarboxylic acid or an anhydride thereof, b) 10-70 mol % of at least one oligomer of propene or of a branched 1-olefin of 4 to 10 carbon atoms, having an average molecular weight Mw of from 300 to 5000, and c) 1-50 mol % of at least one monoethylenically unsaturated compound which is copolymerizable with the monomers a) and b), a process for their preparation, oil-soluble reaction products obtainable therefrom by reaction with an amine and the use of said reaction products as additives for lubricants and fuels.

Abstract: Phosphonomethylated poly-vinylamines which contain as characteristic structural elements units of the formula where R1 is hydrogen, C1-C6-alkyl or and X is hydrogen, an alkali metal, ammonium or one equivalent of an alkaline earth metal, are obtainable by phosphonomethylation of polymers which contain N-vinyl-amide or vinylamine groups and are useful as detergent additives and water treatment agents.

Abstract: Complexes in powder form of iodine and a crosslinked polymer based on N-vinyl compounds are obtainable by dry heating of iodine and a polymer which is obtained by polymerization of monovinyl compounds (monomers A) whose vinyl group is bonded to a nitrogen atom of a nitrogen-containing heterocycle, in the presence of from 0.5 to 10% by weight, based on the monomers (A), of a compound (B) of the formula I; where A is —CH— or a nitrogen atom, and n is 2 or 3. The complexes are suitable for producing antidiarrheals.

Abstract: Formaldehyde-free aqueous binders compriseA) a polymer containing from 5 to [lacuna]% by weight of units derived from an ethylenically unsaturated acid anhydride or from an ethylenically unsaturated dicarboxylic acid whose carboxyl groups can form an anhydride group, andB) an alkanolamine having at least two hydroxyl groups.

Abstract: Graft polymers are obtainable by free radical polymerization of(A) monomers or monomer mixtures comprising(a) from 1 to 100% by weight of N-vinylcarboxamides of the formula ##STR1## where R.sup.1 and R.sup.2 are each H or C.sub.1 -C.sub.6 -alkyl, (b) from 0 to 99% by weight of other monoethylenically unsaturated monomers copolymerizable with the monomers (a) and(c) from 0 to 5% by weight of monomers having at least two ethylenically unsaturated, nonconjugated double bonds in the molecule,in the presence of(B) polymers which contain units of vinyl esters of saturated C.sub.1 -C.sub.

Abstract: A graft polymer obtained by free radically polymerizing:(A) a monomer or monomer mixture comprising:(a) from 10-100% by weight of a N-vinylcarboxamide of the formula: ##STR1## where R.sup.1 and R.sup.2 are each H or C.sub.1 -C.sub.6 -alkyl, (b) from 0-90% by weight of at least one other monoethylenically unsaturated monomer which is copolymerizable with (a), and(c) from 0-5% by weight of at least one monomer having at least two ethylenically unsaturated nonconjugated double bonds in the molecule, in the presence of(B) a polytetrahydrofuran or a polymer which contains at least 3 units of a C.sub.2 -C.sub.4 alkylene oxide and is a hornopolymer of C.sub.2-4 -alkylene oxide having two free terminal OH groups or random or block copolymers of C.sub.2-4 -alkylene oxides having two free terminal OH groups or the reaction products of C.sub.

Abstract: The use of aqueous solutions or dispersions of copolymers composed ofA) from 5 to 95 mol % of ethylenically unsaturated mono- or dicarboxylic acids having 3 to 10 carbons, their anhydrides, their alkali metal, alkaline earth metal or ammonium salts, or mixtures thereof,B) from 5 to 95 mol % of ethylenically unsaturated acetals, ketals or orthocarboxylic esters of the formula I ##STR1## where R.sup.1 to R.sup.12 independently are hydrogen or an organic radical anda to d independently are 0 or 1, andC) from 0 to 70 mol % of other copolymerizable monomersor their hydrolysis products or polymer-analogous reaction products, as tanning agents for the self-tanning, pretanning or assist tanning of leather pelts and skin pelts or for the retanning of leather and skins.

Abstract: Aqueous solution or aqueous dispersion of copolymers suitable for the fatliquoring and filling of leather and fur skins are obtained by free-radical copolymerization ofA.sup.1) C.sub.6 -C.sub.40 -monoolefins or C.sub.6 -C.sub.40 -alkyl vinyl ethers or mixtures thereof withB.sup.1) monoethylenically unsaturated C.sub.4 -C.sub.8 -dicarboxylic anhydrides or by free-radical copolymerization ofA.sup.2) C.sub.6 -C.sub.40 -alkyl acrylates or methacrylates or vinyl esters of C.sub.6 -C.sub.40 -carboxylic acids or mixtures thereof withB.sup.2) monoethylenically unsaturated C.sub.3 -C.sub.12 -carboxylic acids, monoethylenically unsaturated C.sub.4 -C.sub.12 -dicarboxylic anhydrides, monoesters or monoamides of monoethylenically unsaturated C.sub.4 -C.sub.12 -dicarboxylic acids, amides of monoethylenically unsaturated C.sub.3 -C.sub.

Abstract: In a cationic modification process for starch, starch is reacted with polymers that contain amino and/or ammonium groups in an aqueous medium at temperatures from 115.degree. C. to 180.degree. C. under an increased pressure and in the absence of oxidizers, polymerization initiators and alkali. The reaction is conducted so that maximum 10% by weight starch has its molar weight reduced. Also disclosed is the use of the thus obtained reaction products as dry strength agents for paper.

Abstract: A process for preparing copolymers of vinyl esters and monoethylenically unsaturated carboxylic acids by free-radical copolymerization of(a) 20 to 80 mol % of vinyl esters of aliphatic monocarboxylic acids having at least 2 carbon atoms and(b) 80-20 mol % of monoethylenically unsaturated carboxylic acids, with or without(c) 0-30 mol % of other copolymerizable monoethylenically unsaturated monomers and/or(d) 0-10 mol % of monomers which contain at least two non-conjugated ethylenic double bonds in the molecule,in the presence of at least one sulfur, phosphorus and/or nitrogen compound with a reducing action and of 0.05-30% by weight, based on the monomers, of at least one surface-active agent in aqueous medium in the presence of initiators and in the presence or absence of regulators, and the use of the copolymers or of the copolymers which are obtainable therefrom by hydrolysis and/or oxidation and have vinyl alcohol units as additive to detergents and cleaners.

Abstract: Graft polymers which contain N-vinyl units and in which the grafting base is a polymer which contains in each case at least 5% by weight of units of the formulae ##STR1## where R.sup.1 and R.sup.2 are each H or C.sub.1 -C.sub.6 -alkyl, monoethylenically unsaturated monomers are grafted onto the grafting base in a weight ratio of from 100:1 to 1:100, and which have K values of at least 7 (determined according to H. Fikentscher in 5% strength by weight aqueous solution at 25.degree. C. and pH 7), are prepared by polymerization of monoethylenically unsaturated monomers in the presence of polymers which in each case contain at least 5% by weight of units of the formulae I and/or II as the grafting base in a weight ratio of from 100:1 to 1:100, and are used as dispersants for pigments, as additives for detergents and cleaning agents, and strength agents for paper and as soil stabilizers and for fertilizer compaction.

Abstract: Water-soluble copolymerizates are disclosed containing carboxyl groups, and also containing the following components incorporated by polymerization: (a) 30 to 80 mol % monoethylenically unsaturated C.sub.3 -C.sub.8 carboxylic acids, anhydrides thereof and/or water-soluble salts thereof; (b) 10 to 50 mol % C.sub.2 -C.sub.8 olefines, styrene, alkyl styrene, C.sub.1 -C.sub.10 alkyl vinyl ethers and/or vinyl esters of saturated C.sub.1 -C.sub.10 monocarboxylic acids; and (c) 0.01 to 20 mol % vinyl ethers and/or allyl ethers of alkoxylated C.sub.1 -C.sub.30 alcohols. The copolymerizates in question have a K-value of at least 8 (determined after H. Fikentscher). Also disclosed are methods of producing the water-soluble copolymerizates by copolymerization of the monomers in the presence of radical-forming polymerization initiators, and the use of the polymerizates as scale inhibitors.

Abstract: Copolymers containing(a) from 5 to 90 mol % of vinyl formate units,(b) from 10 to 95 mol % of units of monoethylenically unsaturated carboxylic acids,(c) from 0 to 70 mol % of units of monoethylenically unsaturated dicarboxylic acids, and(d) from 0 to 30 mol % of units of other monoethylenically unsaturated monomersin copolymerized form and having K values of at least 8 (determined by the method of H. Fikentscher in 1% strength by weight aqueous solution on the sodium salt of the copolymers at pH 7 and 25.degree. C.

Abstract: A process for the preparation of a stable water-in-oil emulsion of a hydrolyzed polymer of an N-vinyl amide of the formula ##STR1## in which R and R.sup.1 denote H or C.sub.1 -C.sub.6 alkyl, by the polymerization of a compound of the formula I alone or in admixture with another ethylenically unsaturated monomer in the presence of a polymerization initiator and emulsifier in the form of a water-in-oil emulsion, to form a water-in-oil polymeric emulsion, followed by hydrolysis of the polymer in the form of the water-in-oil polymeric emulsion in the presence of an acid or base and from 1 to 30 wt %, based on the polymer, of an emulsifier, the emulsifier used being a mixture of(a) from 5 to 95 wt % of a block or graft copolymer of the structure (A-B)m, (A)-B or (B)-A, in which in each case(a) from 5 to 95 wt % of a block or graft copolymer of the structure (A-B).sub.m, (A).sub.n B or (B).sub.

Abstract: Chlorofluorocarbon-free, urethane-containing moldings having a cellular core and an integral skin with an essentially pore-free surface, ie.