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:
Feb. 28, 1978
Filed:
Feb. 27, 1976
Charles Bloor Davies, Wallasey, EN;
James Francis Davies, Wirral, EN;
William Frederick Neillie, Birkenhead, EN;
Lever Brothers Company, New York, NY (US);
Abstract
Detergent compositions based on sodium carbonate as a detergency builder also contain finely divided calcium carbonate having a surface area of at least about 5 square meters per gram (m.sup.2 /g), preferably from about 30 to 100 m.sup.2 /g, together with a detergent active compound or mixture of compounds which does not form during use an insoluble calcium salt. The added calcium carbonate tends to improve the detergency building action of the sodium carbonate, and so increase detergency, while inhibiting the tendency for the newly precipitated calcium carbonate to be deposited on the washed fabrics.