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:
Nov. 12, 1985
Filed:
Feb. 25, 1980
John M Kernstock, Midland, MI (US);
Earl H Johnson, Midland, MI (US);
Bertha R Vaughn, Midland, MI (US);
The Dow Chemical Company, Midland, MI (US);
Abstract
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.