Cosmetic compositions containing N-alkylacrylamide or N-alkylmethacrylamide based copolymers
AssigneeSociete Anonyme dite: L'Oreal
InventorsClaude Mahieu, Christos Papantoniou
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Abstract
The present invention has for its object novel copolymers with a base of N-alkyl acrylamide or methacrylamide and their uses in cosmetics particularly in setting lotions and lacquer and in other preparations such as, for example, nail polish.
Claims11
A hair setting lotion comprising in a hydroalcoholic solution a copolymer which is the polymerization of:
- (a) a water-insoluble monomer of the formula ##STR9## wherein:
- R represents alkyl having 1-10 carbon atoms,
- R.sub.1, R.sub.2 and R.sub.3 each independently represent hydrogen or methyl,
- n=0 or 1 and when n=1, X represents oxygen, and
- (b) a water soluble monomer of the formula ##STR10## wherein R' represents hydrogen or methyl,
- Z represents alkylene having 1-6 carbon atoms or alkylene having 1-6 carbon atoms and substituted by 1-2 hydroxymethyl groups,
- m is 0 or 1,
- when m is 0, R.sub.4 is hydrogen or --COR.sub.6 wherein R.sub.6 is OH or --NH--R.sub.7, wherein R.sub.7 is hydrogen or --Z--OH wherein Z has the meaning given above, and R.sub.5 is hydrogen or --CH.sub.3, and
- when m is 1, R.sub.4 is hydrogen and R.sub.5 is --COR.sub.6 wherein R.sub.6 has the meaning given above,
- said copolymer having a molecular weight between 1,000 and 500,000, and being present in an amount between 0.3 and 6 percent by weight of said lotion.
An aerosol hair lacquer composition for setting the hair, packaged under pressure in an aerosol container comprising 6 to 30 percent by weight of an alcohol and 0.2 to 8 percent by weight of a copolymer which is the polymerization of:
- (a) a water-soluble monomer of the formula ##STR11## wherein R represents alkyl having 1-10 carbon atoms,
- R.sub.1, R.sub.2 and R.sub.3 each independently represent hydrogen or methyl,
- n=0 or 1 and when n=1, X represents oxygen, and
- (b) a water soluble monomer of the formula ##STR12## wherein R' represents hydrogen or methyl,
- Z represents alkylene having 1-6 carbon atoms or alkylene having 1-6 carbon atoms and substituted by 1-2 hydroxymethyl groups,
- m is 0 or 1,
- when m is 0, R.sub.4 is hydrogen or --COR.sub.6 wherein R.sub.6 is OH or --NH--R.sub.7 wherein R.sub.7 is hydrogen or --Z--OH wherein Z has the meaning given above, and R.sub.5 is hydrogen or --CH.sub.3, and
- when m is 1, R.sub.4 is hydrogen and R.sub.5 is --COR.sub.6 wherein R.sub.6 has the meaning given above;
- said copolymer having a molecular weight between 1,000 and 500,000, the remainder being essentially a liquified propellant gas.
In a nail polish composition the improvement comprising the inclusion therein of 2 to 30 percent by weight based on the total weight of said composition of a copolymer which is the polymerizate of
- (a) a water-insoluble monomer of the formula ##STR13## wherein R represents alkyl having 1-10 carbon atoms,
- R.sub.1, R.sub.2 and R.sub.3 each independently represent hydrogen or methyl,
- n=0 or 1 and when n=1, X represents oxygen, and
- (b) a water soluble monomer of the formula ##STR14## wherein R' represents hydrogen or methyl,
- Z represents alkylene having 1-6 carbon atoms or alkylene having 1-6 carbon atoms and substituted by 1-2 hydroxymethyl groups,
- m is 0 or 1,
- when m is 0, R.sub.4 is hydrogen or --COR.sub.6 wherein R.sub.6 is OH or --NH--R.sub.7 wherein R.sub.7 is hydrogen or --Z--OH wherein Z has the meaning given above, and R.sub.5 is hydrogen or --CH.sub.3, and
- when m is 1, R.sub.4 is hydrogen and R.sub.5 is --COR.sub.6 wherein R.sub.6 has the meaning given above,
- said copolymer having a molecular weight between 1,000 and 500,000.
Dependencies are inferred from the claim text.