Abstract Formulations containing pigments and/or delustrants, a solution of a pigment binder and, if appropriate, additives, characterized in that the pigment binder is a copolymer of, relative to the weight of the copolymer, 10-40% by weight of an acrylic acid ester having 1-12 C atoms in the alcohol chain, 10-40% by weight of a methacrylic acid ester having 1-4 C atoms in the alcohol chain, 10-30% by weight of N-vinylpyrrolidone, 5-15% by weight of acrylic acid and 10-20% by weight of a vinyl ester having 1-4 C atoms in the acid chain, which have been prepared in an organic solvent which is miscible with water in the presence of a regulator and of a per-compound or an azo compound which donates free radicals at the polymerization temperature, and the use of these formulations for pigmenting and/or delustring dressing agents for leather and leather imitations.
A composition comprising a pigment or delustrant and a binder therefore which binder is a copolymer having an intrinsic viscosity (η) of 0.05-0.35 which copolymer is prepared by copolymerizing the following components: 10-40% by weight of an acrylic acid ester having 1-12 C atoms in the alcohol chain, 10-40% by weight of a methacrylic acid ester having 1-4 C atoms in the alcohol chain, 10-30% by weight of N-vinylpyrrolidone, 5-15% by weight of acrylic acid and 10-20% by weight of a vinyl ester having 1-4 C atoms in the acid chain, in an organic solvent which is miscible with water in the presence of a per-compound or an azo compound which donates free radicals at the polymerization temperature.
Claim 2
Dependent Claim
118 words
A composition comprising a pigment or delustrant and a binder therefore which binder is a copolymer having an intrinsic viscosity (η) of 0.05-0.35 which copolymer is prepared by copolymerizing the following components: 10-40% by weight of an acrylic acid ester having 1-12 C atoms in the alcohol chain, 10-40% by weight of a methacrylic acid ester having 1-4 C atoms in the alcohol chain, 10-30% by weight of N-vinylpyrrolidone, 5-15% by weight of acrylic acid and 10-20% by weight of a vinyl ester having 1-4 C atoms in the acid chain, in an organic solvent which is miscible with water in the presence of a per-compound or an azo compound which donates free radicals at the polymerization temperature.
Claim 3
Dependent Claim
36 words
Formulations according to claim 1, characterised in that the copolymer has been prepared in the presence of 0.2-2.5% by weight of regulator and 0.3-5% by weight or per-compound or an azo compound which donates free radicals.
Claim 4
Dependent Claim
19 words
A composition according to claim 1, wherein the copolymerization is carried in the presence of a sulfur containing compound.
Claim 5
Dependent Claim
19 words
A compositon according to claim 3, wherein said sulfur containing compound is mercaptoethanol, dodecyl mercaptan or tert. dodecyl mercaptan.