Patent ID: 9717673
Date: 2017-08-01
CPC Classifications: A61K,A61Q

Claim:
1. A shampoo preparation comprising: water, at least one anionic surfactant selected from the group consisting of sodium lauryl sulfate, ammonium lauryl sulfate, sodium lauryl ether sulfate and ammonium lauryl ether sulfate; an amphoteric and/or zwitterionic co-surfactant selected from the group consisting of cocamidopropyl betaine, cocoamphoacetate and cocoamphodiacetate, and an effective amount of an acrylic emulsion polymer which is an emulsion polymerization product of a monomer mixture consisting of 10-30 wt.-% of methacrylic acid, 5-15 wt.-% ethyl acrylate and 60-80 wt.-% of n-butyl methacrylate, wherein the anionic surfactant and the amphoteric and/or zwitterionic co-surfactant are present in an amount to provide a ratio of the anionic surfactant to the amphoteric and/or zwitterionic co-surfactant of 5:1 to 1:1.