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:
Sep. 01, 1992
Filed:
Sep. 14, 1990
Applicant:
Inventor:
Charles C Nunn, Rutherford, NJ (US);
Assignee:
Lever Brothers Company, Division of Conopco, Inc., New York, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09K / ;
U.S. Cl.
CPC ...
25218638 ; 25218639 ;
Abstract
A bleaching composition in concentrated form is provided that includes a peroxygen compound and an organic bleach precursor. The precursor is selected from esters and carbonates having a leaving group whose conjugate acid has a pKa of greater than 13. Particularly preferred are quaternary ammonium functionalized compounds. Absent preconcentration of the components, poor bleaching would result. Concentrated compositions may be achieved through use of encapsulation or by way of a sachet.