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:
Aug. 24, 1993
Filed:
Dec. 19, 1991
Terry Crutcher, Baton Rouge, LA (US);
Joe D Sauer, Baton Rouge, LA (US);
Kim R Smith, Baton Rouge, LA (US);
James E Borland, Baton Rouge, LA (US);
Ethyl Corporation, Richmond, VA (US);
Abstract
The divalent ion sequestration rate of a zeolite is increased by blending it with 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 to provide about 2.3-7.0 mmols of amine oxide per gram of zeolite. Preferred ingredients are zeolite A and N-tetradecyldimethylamine oxide, and the increased sequestration rate makes the zeolite more suitable for use as detergent builder in anionic surfactant-containing cleaning compositions.