Modified polyvinyl alcohol and water-soluble film containing the same

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专利权人:

株式会社クラレ

发明人:

森 容子,加藤 雅己

申请号：

JP2015554965

公开号：

JP6512517B2

申请日:

2014.12.24

申请国别(地区):

JP

年份:

2019

代理人:

摘要：

Modified polyvinyl alcohol contains a monomer unit having a carboxyl group, wherein the modified polyvinyl alcohol has a degree of saponification of from 50 to 99.99 mol% and a viscosity-average degree of polymerization of from 200 to 5000 and satisfies formulae (1) to (3) below. The modified polyvinyl alcohol of the present invention thus obtained is particularly excellent in dispersibility in water. 0.8 ‰¤ Mw UV / Mw RI ‰¤ 1.2 2 ‰¤ Mw UV / Mw UV ‰¤ 8 0.01 ‰¤ A 280 ‰¤ 0.8

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