发明名称 |
THERMOPLASTIC BLOCK COPOLYESTER ELASTOMER |
摘要 |
The invention relates to a novel block copolyester elastomer comprising hard segments derived from at least one alkylene glycol and at least one aromatic dicarboxylic acid, and soft segments of a triblock copolymer containing one, optionally hydrogenated, polyalkadiene block and two poly(alkylene oxide) blocks. The novel block copolyester elastomer shows typical elastomeric properties and a very good water vapour permeability, but without the drawback of high water absorption. The invention also relates to a process for the preparation of the triblock copolymer from a polyalkadiene diol and at least one alkylene oxide, and to the use of the triblock copolymer as a soft segment in block copolymer elastomers. |
申请公布号 |
WO0104174(A1) |
申请公布日期 |
2001.01.18 |
申请号 |
WO2000NL00466 |
申请日期 |
2000.07.03 |
申请人 |
DSM N.V.;WIDMER STADLER, CACILDA, PEREIRA |
发明人 |
STADLER, REIMUD DI;WIDMER STADLER, CACILDA, PEREIRA |
分类号 |
C08G63/00;C08G63/672;C08G65/26 |
主分类号 |
C08G63/00 |
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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