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:
Jan. 21, 1992
Filed:
Dec. 11, 1990
Applicant:
Inventors:
Matthew E Langer, New City, NY (US);
Ferial Khorshahi, Leonia, NJ (US);
Michael P Aronson, West Nyack, NY (US);
John F Hessel, Metuchen, NJ (US);
Assignee:
Lever Brothers Company, Division of Conopco, Inc., New York, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C11D / ; C11D / ; D06M / ; D06M / ;
U.S. Cl.
CPC ...
252-87 ; 252-86 ; 252-88 ; 252-89 ; 25217423 ; 252543 ; 252D / ; 252132 ; 8647 ; 428 98 ; 428131 ; 428224 ; 427242 ;
Abstract
The present invention pertains to fabric detergent and fabric care compositions comprising a surfactant and a polymeric whitening agent which contains both a fluorescent portion and a hydrophilic portion. The use of these copolymers allows certain substrates, such as polyester or soiled cottons, to be brightened more readily then previously known.