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. 17, 1992
Filed:
Nov. 07, 1991
James E Borland, Baton Rouge, LA (US);
Terry Crutcher, Baton Rouge, LA (US);
Jeffrey W Perine, Baton Rouge, LA (US);
Joe D Sauer, Baton Rouge, LA (US);
Kim R Smith, Baton Rouge, LA (US);
Ethyl Corporation, Richmond, VA (US);
Abstract
Surfactant mixtures which have foamability performance and/or cost advantages over the individual components consist of 5-85% by weight of an amine oxide corresponding to the formula RR'R'NO in which R is a primary alkyl group containing 6-24 carbons and R' and R' are independently selected from methyl, ethyl, and 2-hydroxyethyl and 95-15% by weight of an alkylamidopropyldimethylbetaine in which the alkyl group contains 8-18 carbons. Preferred mixtures are those in which the amine oxide is N-tetradecyldimethylamine oxide and the betaine is cocoamidopropyldimethylbetaine.