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. 11, 1998
Filed:
Nov. 29, 1996
Vincent E Alvarez, Livermore, CA (US);
James W Arbogast, Scottsdale, AZ (US);
James E Deline, Livermore, CA (US);
Lafayette D Foland, Dublin, CA (US);
Thomas W Kaaret, Alamo, CA (US);
Kevin A Klotter, Livermore, CA (US);
Michael J Petrin, Antioch, CA (US);
William L Smith, Pleasanton, CA (US);
Alfred G Zielske, Pleasanton, CA (US);
James D Mitchell, Alamo, CA (US);
The Clorox Company, Oakland, CA (US);
Abstract
Nitrile activators, such as N-alkyl ammonium acetonitrile activators, are combined with a source of active oxygen as cleaning and bleaching compositions. Preferred activator embodiments of the invention include salts of N-methyl morpholinium acetonitrile, N-butyl morpholinium acetonitrile, N-hexyl morpholinium acetonitrile, and N-octyl morpholinium acetonitrile. A particularly preferred activator embodiment is an N-methyl morpholinium acetonitrile salt. The nitrile and active oxygen react to form a bleaching agent which is applied to a stain on an article. The treated stain is contacted with dense gas so as to provide substantially non-aqueous stain removal. One embodiment is a composition in which the nitrile and active oxygen are disposed in the dense carbon dioxide.