发明名称 |
POLYISOCYANATE COMPOSITIONS AND THEIR USE IN THE MANUFACTURE OF POLYMERIC FOAMS |
摘要 |
The invention relates to polyisocyanate compositions comprising compounds of the general formula Tm(R)n wherein T represents a chain of more than 70 atoms, m represents an integer of at least 1, R represents an isocyanate group containing residue and n is an integer of at least 2, at least one of the residues represented by R containing at least two isocyanate groups separated one from another by a chain of from 5 to 30 atoms and the sum of the residues represented by R constituting less than 50 % of the total molecule on a weight basis. The invention also relates to a method for the preparation of flexible polymeric foams using such polyisocyanate compositions. |
申请公布号 |
ZA9002562(B) |
申请公布日期 |
1991.03.27 |
申请号 |
ZA19900002562 |
申请日期 |
1990.04.03 |
申请人 |
IMPERIAL CHEMICAL INDUSTRIES PLC. |
发明人 |
GABRIEL VERHELST;TU PHAM;LOUIS MULLER;MIREILLE DE WITTE;HERBERT RUSSELL GILLIS |
分类号 |
C08G18/08;C08G18/10;C08G18/48;C08G18/72;C08G18/76;C08G18/78;C08G101/00 |
主分类号 |
C08G18/08 |
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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