发明名称 |
POLYOXYALKYLENE-MODIFIED VINYL ACETAL POLYMER, AND COMPOSITION COMPRISING SAME |
摘要 |
There is provided a polyoxyalkylene-modified vinyl acetal polymer which has polyoxyalkylene groups represented by general formula (I) in side chain, in which a viscosity-average polymerization degree P is 150 to 5000, an acetalization degree is 10 to 85 mol% and a polyoxyalkylene modification rate S is 0.1 to 10 mol%. Such a polymer has a feature that a film or sheet produced therefrom has improved film strength and flexibility, as well as a feature that a resin composition therefrom is free from phase separation.
wherein R 1 represents a hydrogen atom or a methyl group, R 2 represents a hydrogen atom or an alkyl group having 1 to 8 carbon atoms, and 1‰¤m‰¤10 and 3‰¤n‰¤20. |
申请公布号 |
EP2679610(A1) |
申请公布日期 |
2014.01.01 |
申请号 |
EP20120749280 |
申请日期 |
2012.02.24 |
申请人 |
KURARAY CO., LTD. |
发明人 |
KAWAGOE, MASAKO;NII, SHINSUKE |
分类号 |
C08F16/38;C08F8/10;C08F8/48;C08F216/14;C08F218/08;C08L29/14 |
主分类号 |
C08F16/38 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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