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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.:

US 9144610 B1

PDFFull Text
Date of Patent:
Sep. 29, 2015

Filed:

Nov. 16, 2011

Polymeric thickening agent free of acrylamide fragments, method for the preparation thereof, and composition containing same

Applicants:

Olivier Braun, Castres, FR;

Paul Mallo, Croissy-sur-Seine, FR;

Inventors:

Olivier Braun, Castres, FR;

Paul Mallo, Croissy-sur-Seine, FR;

Assignee:

SOCIETE D'EXPLOITATION DE PRODUITS POUR LES INDUSTRIES CHIMIQUES SEPPIC, Paris, FR;

Attorney:

Young & Thompson

Primary Examiner:

Anna Falkowitz

Int. Cl.
CPC ...
A61K 47/32 (2006.01); A61K 8/81 (2006.01); A61Q 19/00 (2006.01); C08F 2/32 (2006.01); A61K 8/06 (2006.01); A61Q 17/04 (2006.01); A61Q 1/02 (2006.01); A61Q 1/08 (2006.01); A61Q 1/14 (2006.01); A61Q 5/00 (2006.01); A61Q 5/02 (2006.01); A61Q 5/12 (2006.01); A61Q 19/06 (2006.01); A61Q 19/10 (2006.01); C08F 220/06 (2006.01);
U.S. Cl.
CPC ...
A61K 47/32 (2013.01); A61K 8/064 (2013.01); A61K 8/8152 (2013.01); A61K 8/8164 (2013.01); A61Q 19/00 (2013.01); C08F 2/32 (2013.01); A61K 2800/10 (2013.01); A61Q 1/02 (2013.01); A61Q 1/08 (2013.01); A61Q 1/14 (2013.01); A61Q 5/002 (2013.01); A61Q 5/02 (2013.01); A61Q 5/12 (2013.01); A61Q 17/04 (2013.01); A61Q 19/002 (2013.01); A61Q 19/004 (2013.01); A61Q 19/06 (2013.01); A61Q 19/10 (2013.01); C08F 220/06 (2013.01);
Abstract

A composition including an oil phase, an aqueous phase, at least one water-in-oil emulsifying system in the form of a positive latex, characterized in that the composition includes a straight, branched, or cross-linked anionic polyelectrolyte, including: a) a non-zero molar proportion of monomer units from acrylic acid in free or partially salified form; and b) a non-zero molar proportion of monomer units from the acid of formula (I):CH═CH—C(═O)—O—[CH—CH2—C(═O)—O]—H  (I),where n is a number greater than or equal to (1) and less than or equal to (5), in free or partially salified form. A method for preparing the same, a polymer powder, and the use thereof as a thickening agent for cosmetic or pharmaceutical compositions are also described.

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