Patent ID: 9376515
Filing Date: 2016-06-28
CPC Classification: C08F

Claim Text:
1. A production method for a vinyl ether polymer, the method comprising the step of polymerizing a vinyl ether monomer to obtain a vinyl ether polymer; a vinyl ether monomer being subjected to living radical polymerization using a polymerization initiator, a monovalent copper compound, a ligand which is coordinated to the copper compound, and ascorbic acid in a solvent; the solvent having a mass ratio of isopropyl alcohol to water from 30:70 to 0:100; a mass ratio of the vinyl ether monomer to the solvent being from 10:100 to 25:100; and a molar ratio of copper (I) in the copper compound to the ascorbic acid being from 1:0.5 to 1:2.