Patent ID: 8563672
Filing Date: 2013-10-22
Classification: C04B,C08F

Abstract:
1. A process for producing copolymer having improved stain resistance, oil and water repellency properties comprising (a) contacting 40 to 70 mol % of a (meth)acrylate monomer of Formula (I); with 30 to 60 mol % of a (meth)acrylic acid and a first amine of Formula (II); at a ratio of 1 mole of amine per mole of (meth)acrylic acid forming a first mixture; (b) contacting the first mixture with an initiator forming a copolymer; wherein Z is Rf(CH2)n-; Rf is C2 to C10 fluoroalkyl, optionally interrupted by one or more —O—, —CH2-, —CFH—, or combinations thereof; n is an integer from 1 to 10; Rh is C2 to C22 linear, branched, cyclic, or aryl alkyl; R1 and R2 are each independently H or CH3; R3 is H, CH3, or CH2CH3; R4 is H, CH3, or CH2CH3; R5 is Y; R9 is alkyl, alkyl alcohol, or hydrogen; and m is 1 to 10.