发明名称 |
HYBRID POLYESTER-POLYETHER POLYOLS |
摘要 |
A process for preparing a hybrid polyester-polyether polyol comprises contacting a carboxyl group-containing component and an epoxide, optionally in the presence of one or more of a double metal cyanide catalyst, a superacid catalyst, a metal salt of a superacid catalyst and/or a tertiary amine catalyst, under conditions such that a hybrid polyester-polyether polyol is formed. The hybrid polyester-polyether polyol offers the advantages of both ester and ether functionalities when used in a polyurethane formulation, thus enhancing physical properties. The process results in products having narrow polydispersity, a low acid number and unsaturation, and reduced byproduct formation, particularly when the double metal cyanide catalyst is employed. |
申请公布号 |
EP2563834(A1) |
申请公布日期 |
2013.03.06 |
申请号 |
EP20110717149 |
申请日期 |
2011.04.21 |
申请人 |
DOW GLOBAL TECHNOLOGIES LLC |
发明人 |
SHUTOV, PAVEL;JIMENEZ, JORGE;VAN DER WAL, HANNO;CASATI, FRANCOIS |
分类号 |
C08G18/42;C08G18/48;C08G63/672;C08G65/26 |
主分类号 |
C08G18/42 |
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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