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:
Sep. 27, 1991
Applicant:
Inventors:
Matthew E Langer, New York, NY (US);
Ferial Khorshahi, Leonia, NJ (US);
John F Hessel, Metuchen, NJ (US);
Simon R Ellis, Little Sutton, GB;
Assignee:
Lever Brothers Company, Division of Conopco, Inc., New York, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D06M / ;
U.S. Cl.
CPC ...
252-86 ; 252-88 ; 252-89 ; 25217423 ; 8647 ; 8648 ;
Abstract
The present invention pertains to fabric softener compositions comprising a surfactant, a fatty acid and a polymeric whitening agent which contains both a fluorescent portion and a hydrophilic portion. Applicants have shown that the polymers can be used in (1) softener compositions wherein biodegradable cationic surfactants are used; and (2) in concentrated softener compositions (i.e., compositions containing 40-80% fabric softener). In concentrated compositions, desirably the use of FFA is minimized or eliminated.