发明名称 |
USE OF LOW UNSATURATED POLYETHER POLYOLS IN SLABSTOCK FOAM APPLICATIONS |
摘要 |
The present invention discloses a method for the formation of and a flexible slabstock polyurethane foam having substantially improved indention force deflection and resilience characteristics while maintaining the other physical properties. The method comprises the steps of: forming a blend of three polyols, each having a plurality of ethylene oxide caps of from 5-25 % by weight based on weight of the polyol, by combining at least one polyether polyol having low unsaturation and a molecular weight no less than 4000 Daltons; at least one graft polyether polyol having an equivalennt weight no less than 1000 Daltons and a solids content of at least 28 %; and at least one polyether polyol having an unsaturation no greater than 0.018 meq/g KOH; providing at least one polyisocyanate component, a catalyst, 3-7 % by weight of water as a blowing magnet; and combining the components to form a slabstock polyurethane foam.
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申请公布号 |
CA2380301(C) |
申请公布日期 |
2008.05.27 |
申请号 |
CA20002380301 |
申请日期 |
2000.12.21 |
申请人 |
BASF CORPORATION |
发明人 |
REICHEL, CURTIS J.;LEE, THOMAS B.;FISHBACK, THOMAS L.;TUINMAN, ROELAND |
分类号 |
C08G18/48;C08G18/40;C08G18/72;C08J9/12;C08K5/54;C08L75/08 |
主分类号 |
C08G18/48 |
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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