Polymer for hair-care products

Claim 2

A polymer for use in hair-care product comprising a copolymer comprising (a) a unit of a hydrophilic ethylenically unsaturated monomer in a quantity of 15 to 99.9% by weight; (b) a unit of an ethylenically unsaturated monomer having a polysiloxane group in a quantity of 0.1 to 85% by weight; and (c) a unit of a hydrophobic ethylenically unsaturated monomer in a quantity of 0 to 84.9% by weight.

Claim 3

The polymer for use in hair-care products according to claim 1, wherein the ethylenically unsaturated monomer having a polysiloxane group (b) comprises one or more of the monomers represented by the formula (I): wherein D, R₁, R₂, m and n have the following meanings, respectively: D = an unsaturated group having radical polymerizability selected from the group consisting of a vinyl group, a vinylalkylene group, a vinylhydroxyalkylene group, an acryloyloxyalkylene group and a methacryloyloxyalkylene group; R₁ = a hydrogen atom, a phenyl group, an alkyl group having 1 to 10 carbon atoms, a polyalkylene group, a polyoxyalkylene groups of which end has been substituted by an ether or ester group, a polyalkylenepolyamine group, a fatty acid group or a polysiloxane group, respectively; R² = a hydrogen atom, a phenyl group, an alkyl group having 1 to 10 carbon atoms, a polyalkylene group, a polyoxyalkylene group of which end has been substituted by an ether or ester group, a polyalkylenepolyamine group, a fatty acid group or a polysiloxane group, or an unsaturated group having radical polymerizability selected from the group consisting of a vinyl group, a vinylalkylene group, a vinylhydroxyalkylene group, an acryloyloxyalkylene group or a methacryloyloxyalkylene group; m = an integer from 4 to 150; and n = an integer from 0 to 150, wherein the sum of m and n is within 150.

Claim 4

The polymer for use in hair-care products according to claim 1, wherein the ethylenically unsaturated monomer having a polysiloxane group (b) comprises one or a mixture of the two or more of the monomers represented by the formulae (II) to (IV): wherein R₃ to R₆, p and q have the following meanings independently of each other between the formulae: R₃ = a hydrogen atom or a methyl group; R₄ = an alkylene group having 1 to 4 carbon atoms; R₅ = an alkyl group having 1 to 10 carbon atoms or a phenyl group; p = an integer of 1 or more; and q = an integer of 1 or more, wherein the sum of p and q are within 150.

Claim 5

The polymer for use in hair-care products according to claim 1, wherein the hydrophilic unsaturated monomer (a) comprises a nonionic unsaturated monomer.

Claim 6

The polymer for use in hair-care products according to claim 1, wherein the hydrophilic monomer (a) comprise an anionic unsaturated monomer.

Claim 7

The polymer for use in hair-care products according to claim 1, wherein the hydrophilic monomer (a) comprise a cationic unsaturated monomer.

Claim 8

The polymer for use in hair-care products according to claim 1, wherein the hydrophilic unsaturated monomer (a) comprise an amphoteric unsaturated monomer in that the monomer has an anionic nature and a cationic nature in its molecule.

Claim 9

The polymer for use in hair-care products according to claim 1, wherein the hydrophilic unsaturated monomer (a) comprise a mixture of at least two of monomers consisting of a nonionic unsaturated monomer, an anionic unsaturated monomer, a cationic unsaturated monomer, and an amphoteric unsaturated monomer in that the monomer has an anionic nature and a cationic nature in its molecule.

Claim 10

The polymer for use in hair-care products according to claim 1, wherein the polymer comprises a copolymer comprising (a) a unit of a hydrophilic unsaturated monomer selected from the group consisting of a nonionic monomer, an anionic monomer, an amphoteric monomer in that the monomer has an anionic nature and a cationic nature in its molecule, and a mixture thereof, in a quantity of 20 to 59.5% by weight; (b) a unit of an unsaturated monomer having a polysiloxance group, in a quantity of 0.5 to 40% by weight; and (c) a unit of a hydrophobic unsaturated monomer, in a quantity of 40 to 79.5% by weight, the polymer being suitable for use in hair-setting.

Claim 11

The polymer for use in hair-care products according to claim 1, wherein the polymer comprises a copolymer comprising (a) a unit of a hydrophilic monomer which is a mixture of a cationic unsaturated monomer and an anionic unsaturated monomer, the weight ratio of the cationic monomer to the anionic monomer being 1/9 to 9/1, in a quantity of 20 to 59.5% by weight, (b) a unit of the unsaturated monomer having a polysiloxane group, in a quantity of 0.5 to 40% by weight; and (c) a unit of a hydrophobic unsaturated monomer, in a quantity of 40 to 79.5% by weight, the polymer being suitable for hair setting.

Claim 12

The polymer for use in hair-care products according to claim 1, wherein the polymer comprises a copolymer comprising (a) a unit of a hydrophilic unsaturated monomer which is cationic, in a quantity of 15 to 54.5% by weight; (b) a unit of an unsaturated monomer having a polysiloxane group, in a quantity of 0.5 to 45% by weight; and (c) a unit of a hydrophobic unsaturated monomer, in a quantity of 40 to 84.5% by weight, the polymer being suitable for hair setting.

Claim 13

The polymer for use in hair-care products according to claim 1, wherein the polymer comprises a copolymer comprising (a) a unit of a hydrophilic unsaturated monomer, in a quantity of 15 to 99.5% by weight, (b) a unit of an unsaturated monomer having a polysiloxane group, in a quantity of 0.5 to 20% by weight and (c) a unit of a hydrophobic unsaturated monomer, in a quantity of 0 to 84.5% by weight.

Claim 14

The polymer for use in hair-care products according to claim 1, wherein the polymer comprises a copolymer comprising (a) a unit of a hydrophilic unsaturated monomer which is a cationic monomer or an amphoteric monomer in that the monomer has an anionic nature and a cationic nature in its molecule, in a quantity of 30 to 99.5% by weight; (b) a unit of an unsaturated monomer having a polysiloxane group, in a quantity of 0.5 to 70% by weight; and (c) a unit of a hydrophobic unsaturated monomer, in a quantity of 0 to 69.5% by weight, the polymer being suitable for hair conditioning.

Claim 15

The polymer for use in hair-care products according to claim 1, wherein the polymer comprises a copolymer comprising (a) a unit of a hydrophilic monomer which is a combination of a cationic monomer and an anionic monomer or which is a combination of a cationic monomer and an amphoteric monomer in that the monomer has a anionic nature and a cationic nature in its molecule, the weight ratio of the cationic monomer to the anionic monomer or to the amphoteric monomer being 1/9 to 9/1, in a quantity of 30 to 99.5% by weight; (b) a unit of an unsaturated monomer having a polysiloxane group, in a quantity of 0.5 to 70% by weight; and (c) a unit of hydrophobic unsaturated monomer, in a quantity of 0 to 69.5% by weight, the polymer being suitable for hair conditioning.

Claim 16

A hair-care product comprising the polymer as claimed in claim 1 dissolved in water and/or an alcohol in a concentration of 0.5 to 10% by weight.

Claim 17

A hair-care product comprising the polymer as claimed in claim 1 dissolved in a concentration of 0.5 to 10% by weight in a hydrocarbon of a boiling temperature of 50 to 300°C or in a mixture of the hydrocarbon with an alcohol.