Abstract: The use of copolymers obtained by free-radical polymerization of a mixture of i) 30 to 80% by weight of N-vinyllactam, ii) 10 to 50% by weight of vinyl acetate, and iii) 10 to 50% by weight of a polyether, with the proviso that the total of components i), ii) and iii) equals 100% by weight, as solubilizers for slightly water-soluble substances.

Abstract: The invention relates to a process for producing formulations of sparingly water-soluble substances, said sparingly soluble substances being present in amorphous embedded form in a copolymer, and said copolymer being obtained by free-radically initiated polymerization of a mixture of i) 30 to 80% by weight of N-vinyllactam, ii) 10 to 50% by weight of vinyl acetate, and iii) 10 to 50% by weight of a polyether, with the proviso that the sum of components i), ii) and iii) equals 100% by weight, which comprises embedding the sparingly soluble substance into the copolymer at temperatures above the melting point of the sparingly soluble substances.

Abstract: The present application relates to care polymers and fabric and home care compositions comprising such care polymers, as well as processes for making and using such care polymers and such compositions. The performance of the care polymers that Applicants teach, can be further increased by following the emulsification teaching of the present specification and/or combining such care polymers with silicone materials.

Abstract: The present application relates to care polymers and fabric and home care compositions comprising such care polymers, as well as processes for making and using such care polymers and such compositions. The performance of the care polymers that Applicants teach, can be further increased by following the emulsification teaching of the present specification and/or combining such care polymers with silicone materials.

Abstract: Use of water-soluble or water-dispersible copolymers which are obtained by polymerization of vinyl acetate and N-vinyllactams in the presence of a polyether, as stabilizing agents for emulsions.

Abstract: The present invention relates to a process for producing water-absorbent polymer particles by polymerizing droplets of a monomer solution in a surrounding heated gas phase and flowing the gas cocurrent through the polymerization chamber, which comprises coating the water-absorbing polymer particles with at least one sulfinic acid, sulfonic acid and/or salts thereof.

Abstract: The use of water-soluble or water-dispersible copolymers which are obtained by free radical-initiated polymerization of a mixture of i) 30 to 80% by weight N-vinyllactam, ii) 10 to 50% by weight vinylacetate and iii) 10 to 50% by weight of a polyether, with the proviso that the total of i), ii) and iii) is equal to 100% by weight, as binders for producing solid active ingredient-containing dosage forms.

Abstract: A process for producing water-absorbing polymer particles with improved blood absorbence by polymerizing droplets of a monomer solution in a surrounding gas phase, wherein the monomer solution comprises a surfactant.

Abstract: The present invention relates to a process for producing water-absorbent polymer particles by polymerizing droplets of a monomer solution in a surrounding heated gas phase and flowing the gas cocurrent through the polymerization chamber, wherein the temperature of the gas leaving the polymerization chamber is 130° C. or less, the gas velocity inside the polymerization chamber is at least 0.5 m/s, and the droplets are generated by using a droplet plate having a multitude of bores.

Abstract: Method of producing copolymers by free-radical polymerization of at least one water-soluble N-vinyllactam and at least one hydrophobic comonomer in an organic solvent in the presence of an initiator, where the polymerization is carried out under a gauge pressure such that evaporation of the components is avoided.

Abstract: A process for preparing copolymers in solid form, where the copolymers are obtained by free-radical polymerization of a mixture of 30 to 80% by weight of N-vinyllactam, 10 to 50% by weight of vinyl acetate and 10 to 50% by weight of a polyether in the presence of at least one solvent, with the proviso that the total of i), ii) and iii) equals 100% by weight, which process comprises removing the solvent from the polymerization mixture with the aid of an extruder.

Abstract: Copolymers for use in solubilizing substances which are insoluble in water, substances which are only sparingly soluble in water, and combinations thereof; such copolymers comprising: (a) 60 to 99% by weight of N-vinylcaprolactam; and (b) 1 to 40% by weight of at least one other monomer selected from the group consisting of: C8-C30-alkyl esters of monoethylenically unsaturated C3-C8-carboxylic acids; N—C8-30 alkyl-substituted amides and N,N—C8-30 dialkyl-substituted amides of acrylic acid, methacrylic acid, or combinations thereof; vinyl esters of aliphatic unbranched C8-C30-carboxylic acids; C8-C30-alkyl vinyl ethers; and mixtures thereof.

Abstract: Use of polyvinyllactam-polyvinyl acetate block copolymers as solubilizers for active ingredients that are sparingly soluble in water.

Abstract: Methods of producing vinyllactam copolymers which include: providing at least one water-soluble N-vinyllactam; providing at least one hydrophobic comonomer; and subjecting the at least one water-soluble N-vinyllactam and the at least one hydrophobic comonomer to free-radical polymerization in an organic solvent in the presence of an initiator, under a combination of process measures selected from the group consisting of A and B; wherein: (A) comprises (i) polymerization under reflux, and at least two of (ii), (iii), (iv), (v), (vi), and (vii), wherein (ii) comprises an addition of at least 5 mol % of N-vinyllactam to the polymerization mixture if at least 70 mol % of the total amount of hydrophobic monomer used have completely reacted, (iii) comprises return of condensate formed in the reflux from below to the polymerization mixture, (iv) comprises introduction of the initiator in the form of a solution in an organic solvent from below into the polymerization mixture, (v) comprises addition of N-vinyllacta

Abstract: The use of copolymers obtainable by free radical-initiated copolymerization of a) 80 to 99.5% by weight of vinyl acetate and b) 0.5 to 20% by weight of a monoolefinically unsaturated monomer having sulfonate groups as solubilizers for slightly water-soluble substances.

Abstract: Method of producing vinyllactam copolymers by free-radical polymerization of at least one water-soluble N-vinyllactam and at least one hydrophobic comonomer in an organic solvent in the presence of an initiator under reflux conditions, where following conversion of 90 to 99% by weight of the vinyllactam used, some of the solvent is distilled off and the polymerization is continued.

Abstract: Method of producing vinyllactam copolymers by free-radical polymerization of at least one water-soluble N-vinyllactam and at least one hydrophobic comonomer in an organic solvent in the presence of an initiator under reflux conditions, where the initiator is introduced into the polymerization mixture from below.

Abstract: Vinyllactam copolymers modified with polyalkylene oxide side-chains, and use thereof as solubilizers for substances which are sparingly soluble in water, and preparations comprising such copolymers.

Abstract: Use of polyvinyllactam-polyalkylene oxide block copolymers as solubilizers for sub-stances which are sparingly soluble in water.

Abstract: The use of copolymers obtained by free-radical polymerization of a mixture of i) 30 to 80% by weight of N-vinyllactam, ii) 10 to 50% by weight of vinyl acetate, and iii) 10 to 50% by weight of a polyether, with the proviso that the total of components i), ii) and iii) equals 100% by weight, as solubilizers for slightly water-soluble substances.