发明名称 |
Isocyanate composition and process for making flexible foams therefrom. |
摘要 |
<p>The invention relates to a liquid isocyanate-containing prepolymer composition having an average isocyanate functionality greater than 2 and an NCO content of from 2 to 15 % by weight, as obtainable by reacting an isocyanate reactive polymer having an average nominal functionality of from 2 to 6 with a stoichiometric excess of a diphenylmethane diisocyanate composition containing at least 2 % by weight of 2,4 min -diphenylmethane diisocyanate and having an average isocyanate functionality in the range from 2 to 2.3. The invention also relates to a method for preparing a polyurethane foam, which comprises reacting such a prepolymer composition with water.</p> |
申请公布号 |
EP0392788(A2) |
申请公布日期 |
1990.10.17 |
申请号 |
EP19900303805 |
申请日期 |
1990.04.09 |
申请人 |
IMPERIAL CHEMICAL INDUSTRIES PLC |
发明人 |
VERHELST, GABRIEL;MULLER, LOUIS;PHAM, TU;DE WITTE, MIREILLE;PARFONDRY, ALAIN;WATTS, ARUN |
分类号 |
C08G18/10;C08G18/48;C08G18/76;C08G101/00 |
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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