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:
Aug. 05, 1980
Filed:
Dec. 07, 1978
Applicant:
Inventors:
Thomas C Campbell, Paoli, PA (US);
Elliot P Hertzenberg, Wilmington, DE (US);
Howard S Sherry, Cherry Hill, NJ (US);
Assignee:
PQ Corporation, Valley Forge, PA (US);
Primary Examiner:
Int. Cl.
CPC ...
C01B / ; C02B / ; C11D / ; C11D / ;
U.S. Cl.
CPC ...
252527 ; 252135 ; 252140 ; 252155 ; 25217425 ; 252179 ; 252539 ; 252540 ; 252529 ;
Abstract
Silane-Zeolite composites are incorporated into phosphate free detergents as builders. The use of such composites allows compositional improvements and results in certain process advantages when compared to detergents utilizing plain zeolites as phosphate replacements. Hydrated zeolites which have been treated with functionally hydrophilic silanes do not agglomerate during incorporation into detergents. In addition, use of the silane-zeolite composite allows use of increased amounts of both the zeolite and silicate solids as builders in detergents.