发明名称 |
VERFAHREN ZUR HERSTELLUNG VON POLYURETHAN-ELASTOMEREN |
摘要 |
The invention covers a method for making reaction injection molded polyurethanes of improved properties. The elastomeric products having superior heat distortion and tear properties comprise the reaction product of an aromatic polyisocyanate, a high molecular weight polyol and a chain extending agent. Said polyol providing said improved properties is a poly(oxybutyleneoxyethylene) glycol having a molecular weight range of about 2,000-6,000. The polyurethane elastomer is prepared by injecting the above three agents through a RIM head into a mold cavity of the desired configuration. Reaction injection molded elastomers are useful as molded articles of commerce including, but not limited to, vehicle body parts. |
申请公布号 |
DE3133426(A1) |
申请公布日期 |
1982.06.09 |
申请号 |
DE19813133426 |
申请日期 |
1981.08.24 |
申请人 |
TEXACO DEVELOPMENT CORP. |
发明人 |
CUSCURIDA,MICHAEL;MARVIN RICE,DORIS;GILBERT DOMINGUEZ,RICHARD JOSEPH |
分类号 |
C08G18/00;C08G18/48;C08G18/65;C08G18/66;(IPC1-7):08G18/48 |
主分类号 |
C08G18/00 |
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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