Patent ID: 9650455
Date: 2017-05-16
CPC Classifications: C08F,C08L

Claim:
1. A dispersion stabilizer, comprising a vinyl alcohol polymer (A) having a degree of saponification of 20 mol % or more and 57 mol % or less, a viscosity average degree of polymerization (P) of 100 or more and less than 600, an aliphatic hydrocarbon group having 6 to 18 carbon atoms at its terminal, and an anionic group in its side chain, wherein the viscosity average degree of polymerization (P) is calculated using the following Nakajima's equation wherein the relationship between the viscosity average degree of polymerization (P) of the vinyl alcohol polymer (A) and the degree of modification (S) (mol %) of the aliphatic hydrocarbon group satisfies the following formula (1)