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 |
GR3031072(T3) |
申请公布日期 |
1999.12.31 |
申请号 |
GR19990402156T |
申请日期 |
1999.08.25 |
申请人 |
IMPERIAL CHEMICAL INDUSTRIES PLC |
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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