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. 17, 1993
Filed:
May. 24, 1991
Applicant:
Inventors:
John Oakes, Winsford, GB;
David W Thornthwaite, Neston, GB;
Assignee:
Lever Brothers Company, Division of Conopco, Inc., New York, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09K / ; C11D / ;
U.S. Cl.
CPC ...
25218638 ; 25218639 ; 252 95 ; 558452 ; 558455 ;
Abstract
Bleaching compositions are disclosed comprising a peroxide bleaching agent and a novel cationic peroxyacid bleach precursor having at least one of the following groups (A) and (B) : ##STR1## wherein R.sub.1 and R.sub.2 are each individually H, or a substituent group containing at least one carbon atom, provided that R.sub.1 and R.sub.2 are not both H. The novel bleach precursor of the cationic nitrile type shows no tendency to deliquesce under normal atmospheric conditions.