C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
402/322
C02F 5/12 (2006.01) C02F 5/14 (2006.01) C08F 220/04 (2006.01) C23F 11/173 (2006.01)
Patent
CA 1233938
TITLE OF THE INVENTION COPOLYMERS OF CARBOXYLIC MONOMER AND BETAINE- CONTAINING MONOMER ABSTRACT OF THE DISCLOSURE The instant invention is directed to a polymer, having an intrinsic viscosity of 0.05 to 2.5 dl/g, prepared from: (A) 50 to 95%, by weight, of an unsaturated carboxylic acid, or its salt, and (B) 5 to 50%, by weight, of a betaine-containing monomer selected from the group consisting of: (i) Image (ii) Image - 2 - (iii) Image wherein R, which may be the same or different, is hydrogen, a straight or branched, alkyl or an aryl or alkylaryl group of from 1 to 20 carbon atoms; R1, which may be the same or different, is a saturated, straight or branched alkyl group of from 1 to 10 carbon atoms; A is NH or O; and Z is Image The instant invention is also directed to a process for inhibiting corrosion and the formation and deposition of scale in aqueous systems, comprising adding to the system at least 0.1 ppm of the water soluble polymer described above.
478862
Calgon Corporation
Goudreau Gage Dubuc
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