Patent ID: 8283436
Filing Date: 2012-10-09
Classification: C08F

Abstract:
1. A process for removing one or more groups of the formula —S—(C═S)— from a starting polymer, which is in the form of a solution, dispersion, or a combination thereof, said process comprising: contacting said starting polymer with one or more reagents to form at least (i) a derived polymer absent one or more groups of the formula —S—(C═S)—, and (ii) a byproduct, said one or more reagents selected from the group consisting of 2-(dimethylamino)ethylamine, 3-dimethylamino-1-propylamine, 4-amino-2,2,6,6-tetramethylpiperidine, and a reagent of the formula: wherein in said formula is a polymer moiety; and separating said byproduct from said derived polymer.