Modified vinyl alcohol-based polymer, and dispersion stabilizer for suspension polymerization
AssigneeDenka Company Limited
InventorWataru Watanabe
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Abstract
An object of the present invention is to provide a dispersion stabilizer for suspension polymerization which satisfies various performance requirements for suspension polymerization of a vinyl-based compound such as vinyl chloride. The present invention relates a modified vinyl alcohol-based polymer having at least one monomer unit represented by a following general formula (I) and a modification rate of from 0.01 mol % to 10 mol %: general formula (1) in which BO represents an oxybutylene unit; EO represents an oxyethylene unit; and each of m and n is a number of repeating unit of the respective oxyalkylene units; 1≤m≤10; and 1≤n≥60.
Claims7
A modified vinyl alcohol-based polymer having at least one monomer unit represented by the following general formula (I) and a modification rate of from 0.01 mol % to 10 mol %:
- in which BO represents an oxybutylene unit;
- EO represents an oxyethylene unit;
- and each of m and n is a number of repeating unit of the respective oxyalkylene units;
- 1≤m≤10;
- and 1≤n≤60.
Dependencies are inferred from the claim text.