Cosmetic compositions for application to the nail
AssigneeL'oreal
InventorsRoland Ramin, Jean Mondet
Life of this patent
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Abstract
A cosmetic composition for application to the nail, comprising an aqueous dispersion of polymers and a plasticizer. The composition may be used as a varnish or a base layer for a traditional varnish, and/or as a treatment base for the nail.
Claims14
A cosmetic composition for application to the nail, comprising an aqueous dispersion of particles of at least one film-forming, radical-polymerization polymer and at least one plasticizer, wherein said at least one film-forming polymer contains carboxylic acid functions partially neutralized so that said at least one film-forming polymer is water insoluble but is soluble in an organic solvent.
A cosmetic composition for application to the nail, comprising an aqueous dispersion of particles of at least one film-forming, radical-polymerization polymer and at least one plasticizer, wherein said at least one film-forming polymer contains carboxylic acid functions partially neutralized so that said at least one film-forming polymer is water insoluble but is soluble in an organic solvent and wherein said at least one film-forming polymer has an average molecular weight ranging from 5,000 to 700,000 and is selected from:
- polyoxyethylenated vinyl acetate/crotonic acid copolymers;
- vinyl acetate/crotonic acid (90:10) copolymer;
- vinyl acetate/crotonic acid/vinyl neodecanoate terpolymers;
- N-octylacrylamide/methylmethacrylate/hydroxypropyl methacrylate/acrylic acid/tert-butylaminoethyl methacrylate copolymers;
- methyl vinyl ether/maleic anhydride (50:50) alternating copolymer monoesterified with butanol;
- acrylic acid/ethyl acrylate/N-tertbutylacrylamide terpolymers;
- and
- polymers corresponding to the following formula:
- in which:
- ##STR4## R, R' and R", which may be identical or different, represent a hydrogen atom or a methyl radical;
- m, n and t are equal to 1 or 2;
- R.sub.1 represents a saturated or unsaturated, linear or branched alkyl radical having from 2 to 21 carbon atoms;
- z represents a bivalent radical selected from:
- --CH.sub.2 --, --CH.sub.2 --O--CH.sub.2 -- and --CH.sub.2 --O--(CH.sub.2).sub.2 --;
- Cyc represents a radical selected from:
- ##STR5## in which R.sub.2 represents a hydrogen atom or a methyl radical;
- R.sub.3 represents a hydrogen atom or a methyl, ethyl, tert-butyl, ethoxy, butoxy or dodecyloxy radical;
- R.sub.4 represents a hydrogen atom, an alkyl radical having from 1 to 4 carbon atoms or an alkoxy radical having from 1 to 4 carbon atoms;
- p is equal to 1 or 2;
- v represents from 10 to 91% by weight,
- w represents from 3 to 20% by weight,
- x represents from 4 to 60% by weight,
- y represents from 0 to 40% by weight, and
- v+w+x+y being equal to 100%.
Dependencies are inferred from the claim text.