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:
Nov. 01, 1994
Filed:
Nov. 18, 1993
Applicant:
Inventors:
Brian G Clubley, Wilmslow, GB;
Jan Rideout, Bolton, GB;
Assignee:
FMC Corporation, Philadelphia, PA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C02F / ;
U.S. Cl.
CPC ...
210699 ; 210700 ; 210701 ; 252180 ; 252181 ; 422 15 ;
Abstract
A method of inhibiting the precipitation of barium scale from an aqueous system, comprising adding to the aqueous system a product having the formula I: ##STR1## in which M is hydrogen or an alkali metal ion, an ammonium ion or a quanternized amine radical; R.sub.1 is hydrogen or methyl; and n is an integer having an average value ranging from 4 to 20.