Polysiloxane compositions
Compositions containing polyorganosiloxanes having at least one quaternary group comprising at least one nitrogen atom, and at least one further polar radical, and their use in cosmetic, in particular for the conditioning of hair.
1. A method of conditioning human hair which comprises applying to the humen hair a cosmetic composition comprising a flowable, non-cross-linked polysiloxane of the formula
(CH 3 ) 3 Si—O—[Si(X)(CH 3 )—O—] x —[Si(Z)(CH 3 )—O—] y —[Si(CH 3 )—O] z —Si(CH 3 ) 3 , in which (101)
X is —(CH 2 ) 3 —O(CH 2 CH 2 O) d H) in which d is 10 to 14,
Z is —(CH 2 ) 3 N ⊕ (CH 3 ) 2 —(CH 2 ) 2 —N ⊕ (CH 3 ) 3 ,
x has a value of about 1;
y has a value of about 10; and
z has a value of about 500, or
(CH 3 ) 3 N ⊕ (CH 2 ) 3 Si(CH 3 ) 2 —O—[Si(CH 3 )(Z)—O—] y [Si(CH 3 ) 2 —O] z —Si(CH 3 ) 2 —N ⊕ (CH 3 ) 3 , wherein (102)
Z is as defined above,
y has a value of about 40 and
z has a value of about 600, or
HO—(CH 2 ) 3 Si(CH 3 ) 2 —O—[Si(CH 3 )(Z)—O] y —[Si(CH 3 ) 2 —O] z —Si(CH 3 ) 2 (CH 2 ) 3 —OH, wherein (103)
Z s as defined above,
y has a value of about 41 and
z has a value of about 600,
and wherein, in each case, the anions associated with the quaternary nitrogens are the anions of p-toluene sulfonic acid or other cosmetically acceptable inorganic or organic acids.
2. A method according to claim 1 , wherein the cosmetically acceptable inorganic or organic acid anion is chloride, bromide, sulfate, bisulfate, acetate, formiate, methyl sulfate, benzene sulfonate, toluene sulfonate or a mixture thereof.
3. A method wherein the polyorganosiloxane as defined claim 1 is present in the form of a solution or dispersion which contains from 0.1% to 30% by weight of the polyorganosiloxane in a diluent selected from the group consisting of a physiologically acceptable organic solvent, water and an aqueous emulsion comprising water and an effective amount of an oil-in-water type surfactant.
4. A method according to claim 3 , wherein the cosmetic composition contains from 0.1% to 10% by weight of the polyorganosiloxane.
5. A method of conditioning hair which comprises applying thereto a cosmetic composition according to claim 1 which is a shampoo, hair conditioner, hair pretreatment product, hair tonic, hair styling cream or gel, pomade, hair rinse, deep conditioning treatment, intensive hair care treatment, hair setting product, hair straightening product, liquid hair fixative, hair foam, hair spray, temporary, semi-temporary or permanent hair dye, or a product containing self-oxidizing dyes or natural hair dyes.
6. A method of conditioning hair which comprises applying thereto a cosmetic composition according to claim 1 in the form of an aerosol, pump spray, spritz, lotion, cream, gel, or mousse type composition.
7. A method according to claim 1 , wherein the composition further comprises cosmetically acceptable additives.
8. A method according to claim 7 , wherein the cosmetically acceptable additives are thickeners and stabilizers, perfumes, foam boosters, bactericides, solvents, organic resins, emulsifiers, emollient oils, preservatives, opacifiers; sequestering agents, pH adjusting agents, dyes, re-fatting agents, pearlescent agents, dandruff control agents, waxes, oils, stearamidopropyl dimethylamine or quaternary organic compounds.
9. A method of conditioning hair, which comprises applying thereto a shampoo comprising a cosmetic composition as defined in claim 1 and containing about 2 to 40 parts by weight based on the total weight of the shampoo of a cleansing surfactant.
10. A method of conditioning hair, which comprises applying thereto after washing a rinsable or non-rinsable conditioner comprising a cosmetic composition as defined in claim 1 .