发明名称 |
SOFT, TRANSPARENT AND PROCESSABLE THERMOPLASTIC POLYURETHANE |
摘要 |
A soft, transparent and processable thermoplastic polyurethane resin suitable in optical application is disclosed. The resin is the product of reacting a diisocyanate, a chain extender, and a mixture of polyether polyols. The mixture of polyether polyols comprise (A) a C4 polyether polyol and (B) a C2-C3 polyether polyol where the weight ratio A/B is in the range of about 85/15 to 15/85.
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申请公布号 |
CA2322093(A1) |
申请公布日期 |
2001.02.10 |
申请号 |
CA20002322093 |
申请日期 |
2000.10.02 |
申请人 |
BAYER CORPORATION |
发明人 |
MASON, ARTHUR W.;MANNING, STEVEN C.;GRACIK, CHARLES S.;CHAN, JACK C. |
分类号 |
C08G18/66;(IPC1-7):C08G18/32 |
主分类号 |
C08G18/66 |
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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