| 摘要 |
Aqueous compositions containing a water-soluble amphoteric surfactant are effectively thickened without substantial loss in clarity by a suitable pH responsive, synthetic addition copolymeric thickener such as a copolymer of an alpha , beta -ethylenically unsaturated carboxylic acid (e.g., methacrylic acid), a nonionic chain extender of an alpha , beta -ethylenically unsaturated monomer (e.g., ethyl acrylate), and a nonionic vinyl surfactant ester (e.g., nonylphenoxy(polyethyleneoxy)ethyl methacrylate). Due to the ability of the copolymeric thickener to increase the viscosity of the amphoteric surfactant composition without substantially reducing the clarity thereof, the resulting thickened compositions are useful as shampoos, cleaning compounds and the like.
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