发明名称 |
Block copolymer, its composition and film made of it |
摘要 |
It is to provide a block copolymer and its copolymer composition which provides a heat shrinkable (multilayer) film with less spontaneous shrinkage while maintaining favorable low temperature shrinkability, and a heat shrinkable (multilayer) film containing the block copolymer. By using a block copolymer comprising a vinyl aromatic hydrocarbon and a conjugated diene characterized in that the relation of the loss tangent value obtained by dynamic viscoelasticity measurement with the temperature satisfies specific conditions, or a composition containing the copolymer composition as an essential component, a heat shrinkable (multilayer) film with less spontaneous shrinkability and less odor while maintaining favorable low temperature shrinkability can be obtained.
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申请公布号 |
US7189462(B2) |
申请公布日期 |
2007.03.13 |
申请号 |
US20040991550 |
申请日期 |
2004.11.19 |
申请人 |
DENKI KAGAKU KOGYO KABUSHIKI KAISHA |
发明人 |
MATSUI MASAMITSU;WATANABE HIDEKI;YOSHIDA JUN;HOSHINO HISAKAZU |
分类号 |
B32B27/08;B32B27/32;C08F297/04;C08J5/18;C08L25/14;C08L51/04;C08L53/02 |
主分类号 |
B32B27/08 |
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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