发明名称 |
POLYISOCYANATE POLYADDITION POLYOL MANUFACTURING PROCESS USING STABILIZERS |
摘要 |
PIPA polyols are made by reacting a low equivalent weight polyol with a polyisocyanate in the presence of a stabilizer. Low amounts, if any, of water are present. Useful stabilizers include functionalized linear or branched polyethers having at least one polyether segment having a molecular weight of 200 to 8000, wherein the functionalized polyether is terminated at one end with one or more isocyanate groups or with one or more isocyanate-reactive groups linked to the polyether through one or more urea and/or urethane groups, and further wherein all or a portion of such functionalized polyether contains one or more biuret, isocyanurate, urea or allophonate groups. |
申请公布号 |
WO2015038825(A1) |
申请公布日期 |
2015.03.19 |
申请号 |
WO2014US55262 |
申请日期 |
2014.09.11 |
申请人 |
DOW GLOBAL TECHNOLOGIES LLC |
发明人 |
AMICI-KROUTILOVA, IRENA;COOKSON, PAUL;BORELLA, RICCO;HOEHENER, DANIEL;CASATI, FRANCOIS |
分类号 |
C08G18/76;C08G18/08;C08G18/09;C08G18/18;C08G18/22;C08G18/24;C08G18/28;C08G18/32;C08G18/40 |
主分类号 |
C08G18/76 |
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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