发明名称 |
ALKYLENE OXIDE-LACTONE COPOLYMERS |
摘要 |
A block copolymer is disclosed, which comprises a first block comprising polymerised units of an alkylene oxide and a second block comprising polymerised units of an alkylene oxide and a lactone, said copolymer being obtainable by polymerising an alkylene oxide in the presence of an organic initiator to form said first block, and reacting the first block with a mixture of an alkylene oxide and a lactone. Such copolymers are found to have improved foam inhibition characteristics whilst maintaining their biodegradable properties.
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申请公布号 |
WO0246268(A1) |
申请公布日期 |
2002.06.13 |
申请号 |
WO2001GB05239 |
申请日期 |
2001.11.28 |
申请人 |
LAPORTE PERFORMANCE CHEMICALS UK LIMITED;DIXON, ELIZABETH;MOXEY, JOHN, ROBERT |
发明人 |
DIXON, ELIZABETH;MOXEY, JOHN, ROBERT |
分类号 |
C08G65/26;C08G63/664;(IPC1-7):C08G63/664 |
主分类号 |
C08G65/26 |
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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