The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 12, 2016
Filed:
Feb. 15, 2013
Olivier Braun, St Just St Rambert, FR;
Paul Mallo, Croissy-sur-Seine, FR;
Olivier Braun, St Just St Rambert, FR;
Paul Mallo, Croissy-sur-Seine, FR;
Abstract
An anionic polyelectrolyte resulting from the polymerization, for 100% by mass of: a) a mass ratio ≧70% and ≦98.5% of monomeric units from a monomer with a strong acid function; b) a mass ratio ≧0.5% and ≦10%, —either of a monomer of formula (1a) : R—(CH)3-Si(CH)2-[0-Si(CH)2-]O—Si(CH)—(CH)—R (1a), wherein R represents the monovalent radical: -(0-CH2-CH2-)x[0-CH—CH(CH3)-]yO—C(═0)-CH═CH;—or (Ib): Si(CH)-[0-Si(CH)2-]m[0-Si(CH)[(CH)—R]—]O—Si(CH)(Ib), c) a mass ratio ≧1% and ≦20% of a monomer of formula (II) : CH═CH(R1)-C(═0)-0-(CH)n-CF(II), formula (I) wherein radical Ri represents a hydrogen atom or a methyl radical, and n is equal to 1, 2 or 3; d) optionally a mass ratio >0% and ≦5% of monomeric units from a monomer of formula (III): R—C(═0)-0-[(CH—CH(R)-0]m-R(III), e) optionally a mass ratio >0% and ≦5% of a cross-linking monomer, method for its preparation and use as a thickener in topical compositions.