发明名称 |
Process for making flexible foams |
摘要 |
<p>Process for preparing a flexible foam by reacting a prepolymer having an NCO value of 3-15% by weight, which is the reaction product obtained by reacting an excessive amount of a polyisocyanate with a polyether polyol or a mixture of such polyols, said polyol or mixture having an average nominal hydroxyl functionality of from 2 to 6, an average hydroxyl equivalent weight of from 500 to 5000 and an oxyethylene content of at least 50% by weight, with water, the amount of water being 15-500 parts by weight per 100 parts by weight of prepolymer, at the start of the reaction the temperature of the prepolymer being 10-50 DEG C and the temperature of the water being 10-50 DEG C higher than the temperature of the prepolymer and a process for preparing a flexible foam by reacting the above prepolymer with water in the presence of a superabsorbent polymer.</p> |
申请公布号 |
EP0894814(A1) |
申请公布日期 |
1999.02.03 |
申请号 |
EP19980113472 |
申请日期 |
1995.10.23 |
申请人 |
HUNTSMAN ICI EUROPE LLC THE CORPORATION TRUST COMPANY |
发明人 |
BLEYS, GERHARD JOZEF;GERBER, DIRK;NEYENS, VIVIANE GERTRUDE JOHANNA |
分类号 |
C08J9/02;C08G18/10;C08G18/48;C08G18/76;C08G101/00;C08J9/00;C08L33/02;C08L75/04;C08L75/08;C08L101/14;(IPC1-7):C08G18/48 |
主分类号 |
C08J9/02 |
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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