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:
Sep. 25, 1990
Filed:
Nov. 21, 1988
Applicant:
Inventors:
Hannsjorg Ulrich, Erftstadt, DE;
Lothar Westermann, Cologne, DE;
Assignee:
Hoechst AG, Frankfurt am Main, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C11D / ; C11D / ;
U.S. Cl.
CPC ...
252135 ; 252139 ; 252141 ; 252531 ;
Abstract
A rinsing composition free from phosphate contains as a builder a crystalline layer sodium silicate of the general formula NaMSi.sub.x O.sub.2x+1.y H.sub.2 O, in which M is sodium or hydrogen, x is a number of 1.9-4 and y is a number of 0-20, in admixture with a co-builder which is a polymeric and/or copolymeric carboxylic acid or a salt of said acid.