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:
Jul. 05, 2022
Filed:
Oct. 19, 2018
Conopco, Inc., Englewood Cliffs, NJ (US);
Nicholas John Ainger, Wirral, GB;
Joanna Susan Dawson, Wirral, GB;
Wei Gao, Fort Washington, PA (US);
Adam Peter Jarvis, Liverpool, GB;
Kinjalbahen Joshi, Collegeville, PA (US);
Curtis Schwartz, Ambler, PA (US);
Neil Scott Shaw, Warrington, GB;
Inna Shulman, Langhorne, MI (US);
Pierre Starck, Chester, GB;
Sally Elizabeth Wood, Warrington, GB;
Fanwen Zeng, Audubon, PA (US);
Conopco, Inc., Englewood Cliffs, NJ (US);
Abstract
An aqueous anti-dandruff shampoo composition which comprises: (I) a cleansing surfactant selected from the group consisting of anionic surfactant, zwitterionic or amphoteric surfactant and nonionic surfactant; (II) suspended particles of an anti-dandruff agent, (III) an anti-settling, thickening polymer, wherein the anti-settling, thickening polymer, comprises: (a) 40 to 74.5 wt % of structural units of Calkyl acrylate; (b) 20 to 50 wt % of structural units of methacrylic acid; (c) 0.2 to <5 wt % of structural units of 2-acrylamido-2-methylpropane sulfonic acid (AMPS); (d) 5 to 25 wt % of structural units of a specialized associated monomer having the following structure wherein Ris a linear saturated Calkyl group; wherein Ris a hydrogen or a methyl group (preferably, wherein Ris a methyl group); and wherein n is an average of 20 to 28; with the proviso that the structural units of the specialized associated monomer (d) are derived from one of (i) a single specialized associated monomer (preferably, a single specialized associated monomer wherein Ris selected from the group consisting of a linear saturated Calkyl group, a linear saturated Calkyl group and a linear saturated Calkyl group; more preferably, a single specialized associated monomer wherein R 1 is selected from the group consisting of a linear saturated C12 alkyl group and a linear saturated C18 alkyl group); (ii) two specialized associated monomers, wherein Ris, respectively, a linear saturated Cand a linear saturated Calkyl group; or (iii) two specialized associated monomers, wherein Ris, respectively, a linear saturated Calkyl group and a linear saturated Calkyl group; (e) 0 to 1 wt % of structural units of acrylic acid; and (f) 0 to 2 wt % of structural units of multi-ethylenically unsaturated crosslinking monomer or chain transfer agent; and wherein the sum of the weight percentages of structural units (a)-(f) is equal to 100 wt % of the anti-settling, thickening polymer; and the use of such a composition in a method of treating hair or scalp.