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:
May. 01, 1984
Filed:
Dec. 20, 1982
Applicant:
Inventor:
Larry W Becker, Wilmington, DE (US);
Assignee:
Betz Laboratories, Inc., Trevose, PA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C02F / ;
U.S. Cl.
CPC ...
210697 ; 210699 ; 210700 ; 210701 ; 252180 ; 252181 ; 2523 / ; 422 15 ;
Abstract
A water soluble isopropenylphosphonic acid copolymer composition and method of use thereof are disclosed. The copolymer comprises repeat units (a) of the formula ##STR1## wherein X=OH or OM, wherein M is a cation; and repeat units (b) of the formula ##STR2## wherein R.sub.1 is chosen from the group consisting of hydroxy, hydroxylated alkoxy, and amide and water soluble salts thereof; R.sub.2 is H, or lower alkyl of from 1-3 carbon atoms. These copolymers are effective in inhibiting the precipitation of certain scale forming salts, and also act to inhibit corrosion in water systems.