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:
Dec. 08, 1987
Filed:
May. 23, 1986
Applicant:
Inventors:
Malcolm N Carter, Merseyside, GB;
Reginald V Scowen, Merseyside, GB;
Assignee:
Lever Brothers Company, New York, NY (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C11D / ;
U.S. Cl.
CPC ...
25217424 ; 25217414 ; 25217425 ; 252D / ;
Abstract
A detergent composition containing a detergent active, sodium carbonate and calcite also contains a copolymer to reduce deposition of insoluble material on fabrics. The copolymer is derived from a carboxylic monomer and a non-carboxylic monomer, with the non-carboxylic monomer being in excess. A 3:1 copolymer of sulphonated styrene and maleic anhydride is exemplified.