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:
Mar. 13, 1990
Filed:
Jul. 22, 1988
Applicant:
Inventors:
James F Davies, Merseyside, GB;
Robert S Lee, Merseyside, GB;
Andrew W Travill, Merseyside, GB;
Robert J Williams, Oxford, GB;
Assignee:
Lever Brothers Company, New York, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C11D / ;
U.S. Cl.
CPC ...
252559 ; 25217414 ; 25217421 ; 25217424 ;
Abstract
Silicate free detergent granules contain a seed crystal for calcium carbonate, such as calcite, a non-soap detergent active, especially an anionic active and a sugar such as sucrose to provide good mechanical strength, good dispersibility and other benefits. An alkali metal (e.g. sodium) carbonate may be present in the granules. The granules may be used as such to wash fabrics or may be added to a composition containing sodium carbonate and other conventional ingredients. The granules may be made by spray-drying or pan granulation.