发明名称 |
SOFT, ELASTIC, PLASTICIZER-FREE THERMOPLASTIC POLYURETHANE AND PROCESS TO SYNTHESIZE THE SAME |
摘要 |
<p>The present invention discloses a thermoplastic polyurethane which is comprised of the reaction product of (1) a hydroxyl terminated intermediate, (2) a polyisocyanate, and (3) a glycol chain extender selected from the group consisting of ethylene glycol and propylene glycol; wherein the hydroxyl terminated intermediate is selected from the group consisting of hydroxyl terminated polyether intermediates and hydroxyl terminated polyester intermediates; wherein the hydroxyl terminated intermediate is comprised of repeat units that are derived from a branched glycol or is comprised of at least 2 different repeating units; wherein the thermoplastic polyurethane has a weight average molecular weight of at least 100,000 Daltons; wherein the thermoplastic polyurethane includes hard segments that are the reaction product of the polyisocyanate and the glycol chain extender; and wherein the hard segments represent from 10 to 40 weight percent of the total weight of the thermoplastic polyurethane.</p> |
申请公布号 |
EP2203492(B1) |
申请公布日期 |
2015.12.23 |
申请号 |
EP20080840803 |
申请日期 |
2008.10.21 |
申请人 |
LUBRIZOL ADVANCED MATERIALS, INC. |
发明人 |
FARKAS, JULIUS;VEDULA, RAVI, R.;JACOBS, CHARLES, P. |
分类号 |
C08G18/08;C08G18/42;C08G18/66 |
主分类号 |
C08G18/08 |
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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