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:
Oct. 27, 1992
Filed:
Jul. 12, 1991
Applicant:
Inventor:
Donald T Freese, Glenside, PA (US);
Assignee:
Betz Laboratories, Inc., Trevose, PA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C02F / ;
U.S. Cl.
CPC ...
210699 ; 210701 ; 252180 ; 252181 ; 422 15 ; 422 17 ; 422 19 ;
Abstract
A method inhibiting the deposition of silica and silicate compounds on the metallic surfaces of cooling water equipment comprising adding to the water a composition consisting of hydroxyphosphonoacetic acid and a polymer having the formula: ##STR1## wherein M is a water soluble cation. This composition may further comprise a molybdate compound.