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:
Jun. 12, 1984
Filed:
Jul. 19, 1982
Applicant:
Inventors:
Herbert Landgraber, Hurth, DE;
Werner Kowalski, Weilerswist, DE;
Johan Scheffer, Vlissingen, NL;
Hans Haas, Swisttal-Strassfeld, DE;
Assignee:
Hoechst Aktiengesellschaft, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01B / ; C01B / ; C11D / ; C11D / ;
U.S. Cl.
CPC ...
252135 ; 252109 ; 252133 ; 252174 ; 252175 ; 423265 ; 423275 ; 423306 ; 423315 ;
Abstract
The disclosure relates to sodium tripolyphosphate containing up to 95 weight % phase-I, 0.1 to 22 weight % water of crystallization and 0.01 to 2.0 weight %, calculated as metal, of a compound of the metals selected from calcium, magnesium, zinc or strontium, the compound yielding ions in an aqueous medium. The disclosure also relates to a process for making the tripolyphosphate, and to its uses.