Use of homo- and copolymers for stabilizing active ingredient formulations
1 Assignment
0 Petitions
Accused Products
Abstract
The present invention relates to the use of specific homo- and copolymers P for the stabilizing of organic active compounds in aqueous compositions or formulations comprising surface-active substances.
50 Citations
66 Claims
-
1-33. -33. (canceled)
-
34. A method of stabilizing an organic active compound that is sparingly soluble in water in an aqueous composition comprising a surface active substance, the method comprising adding copolymers P which are formed from monoethylenically unsaturated monomers M comprising:
-
i) 50 to 90% by weight, based on the total weight of the monomers M, of at least one monomer M1 chosen from acrylic acid and methacrylic acid; and ii) 5 to 50% by weight, based on the total weight of the monomers M, of one or more nonionic monomers M2 which are selected from the group consisting of C1-C4-alkyl acrylates, C1-C4-alkyl methacrylates, N—
C1-C3-alkylamides of acrylic acid or of methacrylic acid, N,N-di-D1-C3-alkylamides of acrylic acid or of methacrylic acid, vinyl esters of aliphatic C1-C3-carboxylic acids and C1-C3-alkyl vinyl ethers,the monomers M1 and M2 constituting at least 70% by weight of the monomers M, to the aqueous composition. - View Dependent Claims (35, 36, 40, 42, 43, 44, 45, 46, 47, 48, 60, 61, 62, 63, 64, 65, 66)
-
-
37. (canceled)
-
38. (canceled)
-
39. (canceled)
-
41. (canceled)
-
49. An active compound composition, comprising:
-
a) at least one copolymer P which is formed from monoethylenically unsaturated monomers M comprising; i) 50 to 95% by weight, based on the total weight of the monomers M, of at least one monomer M1 chosen from acrylic acid and methacrylic acid; and ii) 5 to 50% by weight, based on the total weight of the monomers M, of one or more nonionic monomers M2, which are selected from the group consisting of C1-C4-alkyl acrylates, C1-C4-alkyl methacrylates, N—
C1-C3-alkylamides of acrylic acid or of methacrylic acid, N,N-di-D1-C3-alkylamides of acrylic acid or of methacrylic acid, vinyl esters of aliphatic C1-C3-carboxylic acids and C1-C3-alkyl vinyl ethers,the monomers M1 and M2 constituting at least 70% by weight of the monomers M, b) at least one surface-active substance, and c) at least one organic active compound which is sparingly soluble in water. - View Dependent Claims (50, 51, 52, 53, 54, 55, 56, 57, 58, 59)
-
Specification