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. 13, 1979
Filed:
Mar. 22, 1977
Applicant:
Inventors:
John Bailey, Crawcrook, GB;
Leslie H Cassie, Newcastle upon Tyne, GB;
Paul R Sherrington, Newcastle upon Tyne, GB;
Paul VAN Roo, Brussels, BE;
Assignee:
The Procter & Gamble Company, Cincinnati, OH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C11D / ; C11D / ;
U.S. Cl.
CPC ...
252135 ; 252 / ; 252156 ; 252531 ;
Abstract
Detergent compositions containing orthophosphate and pyrophosphate builders in prescribed ratios and magnesium silicate are claimed wherein the final composition has a minimum amount of free alkalinity as NaOH. The compositions demonstrate superior whiteness maintenance and lower undesirable residual deposits on fabrics washed therein. The compositions optionally contain a small amount of a water soluble magnesium salt, e.g., magnesium sulfate and may also contain phosphate more condensed than pyrophosphate.