发明名称 |
Increased reactivity of isocyanate terminated polyether prepolymers with metal halide salt complexes of methylenedianiline. |
摘要 |
<p>Increased reactivity of isocyanate terminated polyether prepolymers with metal halide salt complexes of methylenedianiline is obtained when the polyether intermediates are modified to contain an effective amount of ethylene oxide. A desired intermediate is poly(oxypropylene) diol or triol which are modified to contain ethylene oxide units therein and subsequently reacted with a polyisocyanate such as MDI, that is 4,4 min -diphenylmethane diisocyanate, or TDI, that is, toluene diisocyanate. A desired metal halide salt complex of methylenedianiline is the sodium chloride salt complex (MDA3-NaCl), dispersed in dioctylphthalate (50/50 wt/wt).</p> |
申请公布号 |
EP0328243(A2) |
申请公布日期 |
1989.08.16 |
申请号 |
EP19890300226 |
申请日期 |
1989.01.11 |
申请人 |
THE FIRESTONE TIRE & RUBBER COMPANY;THE DOW CHEMICAL COMPANY |
发明人 |
BETHEA, TRISTRAM W.;TAZEWELL, JOSEPH H.;OZIOMEK, JAMES;HILLSHAFER, DOUGLAS K.;MEYER, LOUIS W. |
分类号 |
C08G18/10;C08G18/48 |
主分类号 |
C08G18/10 |
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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