Patent ID: 9433571
Filing Date: 2016-09-06
CPC Classification: A61K,A61Q,C11D

Claim Text:
1. A method for mitigating ocular and/or skin irritation induced by detersive compositions containing at least one anionic surfactant said method comprising contacting the skin with a detersive composition comprising a crosslinked nonionic amphiphilic dispersion polymer prepared from a free radically polymerizable monomer mixture comprising: i) 60 to 90 wt. % of N-vinyl pyrrolidone (based on the total monomer wt.); ii) 10 to 35 wt. % of at least one vinyl ester selected from vinyl acetate, vinyl propionate, vinyl butyrate, vinyl isobutyrate, vinyl valerate, vinyl hexanoate, vinyl 2-methylhexanate, vinyl 2-ethylhexanoate, vinyl iso-octanoate, vinyl nonanoate, vinyl neodecanoate, vinyl decanoate, vinyl versatate, vinyl laurate, vinyl palmitate, and vinyl stearate; iii) 0 or 0.5 to 5 wt. % of an C iv) 0 or 0.5 to 4.5 wt. % of at least one associative monomer and/or semi-hydrophobic monomer (said weight percent is based on the weight of the total monomers) v) 0.01 to 1 wt. % in one aspect or from 0.1 to 0.3 wt. % of at least one crosslinker (based on the dry weight of the polymer), wherein said detersive composition comprises; a) water; b) 1 to 5 wt. % of said crosslinked nonionic amphiphilic dispersion polymer; c) 6 to 20 wt. % of a surfactant mixture containing an anionic surfactant and an amphoteric surfactant; subject to the proviso that at least one of monomers iii) and iv) must be present and when both monomers iii) and iv) are present in said monomer mixture, the combined weight of said monomers iii) and iv) cannot exceed 5 wt. % of the weight of the total monomer mixture; wherein said associative monomer is represented by formula VIIB: R 14 is hydrogen or methyl; R 15 is a divalent alkylene moiety independently selected from C 2 H 4 , C 3 H 6 , and C 4 H 8 , and n represents an integer ranging from about 10 to about 60, (R 15 —O) can be arranged in a random or a block configuration; R 16 is a substituted or unsubstituted alkyl selected from a C 8 -C 30 linear alkyl, a C 8 -C 30 branched alkyl, a C 8 -C 30 carbocyclic alkyl, a C 2 -C 30 alkyl-substituted phenyl, an araalkyl substituted phenyl, and an aryl-substituted C 2 -C 30 alkyl, wherein the R 16 alkyl group, aryl group, phenyl group optionally comprises one or more substituents selected from the group consisting of a hydroxyl group, an alkoxyl group, benzyl group styryl group, and a halogen group; and wherein said semi-hydrophobic monomer is selected from at least one monomer represented by formulas VIIIA and VIIIB: R