Acrylic acid/2-acrylamido-2-methylpropyl-sulfonic...

C - Chemistry – Metallurgy – 02 – F

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C02F 5/14 (2006.01) C08F 220/06 (2006.01) C08F 220/58 (2006.01) C08F 230/02 (2006.01) C23F 11/173 (2006.01)

Patent

CA 1244997

TITLE OF THE INVENTION ACRYLIC ACID/2-ACRYLAMIDO-2-METHYLPROPYL- SULFONIC ACID/2-ACRYLAMIDO-2-METHYLPROPYL PHOSPHONIC POLYMERS ABSTRACT OF THE DISCLOSURE The present invention is directed to a polymer, having an intrinsic viscosity of 0.05 to 4.5 dl/g, in 1.0 M NaCl, prepared from: (A) 35 to 65%, by weight, of acrylic acid or methacrylic acid; (B) 15 to 45%, by weight, of 2-acrylamido-2-methyl- propylsulfonic acid or 2-methacrylamido-2-methyl- propylsulfonic acid; and (C) 15 to 25%, by weight, of 2-acrylamido-2-methyl- propyl phosphonic acid or 2-methacrylamido-2- methylpropylphosphonic acid.

517032

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