发明名称 |
Epoxidized block copolymer, its production, and its composition |
摘要 |
The present invention is directed to an epoxidized block copolymer composition comprising an epoxidized block copolymer (E) obtained by epoxidizing a block copolymer (C) comprising a polymer block (A) composed mainly of a vinyl aromatic hydrocarbon compound and a polymer block (B) composed mainly of a conjugated diene compound or a product (D) of hydrogenation of the block copolymer (C). The epoxidized block copolymer (E) meets at least one of the following requisites: (1) having a molar ratio (R) of contained hydroxyl to epoxy ranging from 0.001 to 0.1, the molar ratio (R) being represented by the formula: R=[hydroxyl]/[epoxy] (wherein [hydroxyl] represents the amount, in terms of the number of moles, of hydroxyl contained per unit weight of the epoxidized block copolymer and [epoxy] represents the amount, in terms of the number of moles, of epoxy contained per unit weight of the epoxidized block copolymer); (2) having a gel content of not greater than 5% by weight; and (3) having a chloride ion content of not greater than 7 ppm.
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申请公布号 |
US6576692(B1) |
申请公布日期 |
2003.06.10 |
申请号 |
US19990321609 |
申请日期 |
1999.05.28 |
申请人 |
DAICEL CHEMICAL INDUSTRIES, LTD. |
发明人 |
OHTSUKA YOSHIHIRO;OSHINO YASUHIRO;TANAKA MASAKI |
分类号 |
C08F8/08;C08L53/02;(IPC1-7):C08F8/00 |
主分类号 |
C08F8/08 |
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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