发明名称 |
POLYURETHANE ELASTOMER IMPROVED IN DEMOLDING, GREEN STRENGTR . AND WATER-ABSORBING PROPERTIES AND NONCLOUDPOLYOL FOR PRODUCING SAME |
摘要 |
Polyurethane elastomers exhibiting improved green strength while maintaining short demold times are prepared from ultra-low unsaturation polyoxypropylene polyols containing up to 20 weight percent internal random oxyethylene moieties. The elastomers adsorb less than 10 weight percent water at 0 DEG C. The internal polyoxyethylene moiety-containing polyoxypropylene polyols may be used to prepare ultra-low unsaturation polyoxyethylene capped polyols which are haze-free and which may be used to prepare haze-free 4,4'-MDI prepolymers. Multidisperse blends of monodisperse internal oxyethylene moiety-containing polyoxypropylene polyols of ultra-low unsaturation provide yet further improvements in elastomer processing.
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申请公布号 |
JPH093183(A) |
申请公布日期 |
1997.01.07 |
申请号 |
JP19960174361 |
申请日期 |
1996.06.14 |
申请人 |
ARCO CHEM TECHNOL LP |
发明人 |
GUREI ERU AREN;NAIJIERU BAAKUSUBAI;BURUUSU EICHI AIZATSUKUSU;RIA JIEI RANGUSUDORUFU;SUTEFUAN DEI SENEKAA |
分类号 |
C08G65/12;C08G18/10;C08G18/48;C08G18/65;C08G18/66;C08G18/67;C08G18/76;C08G65/02;C08G65/26;(IPC1-7):C08G65/12 |
主分类号 |
C08G65/12 |
代理机构 |
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代理人 |
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地址 |
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