发明名称 |
Process for preparing a free rise or slabstock flexible polyurethane foam |
摘要 |
Process for making free rise or slabstock flexible polyurethane foams with high resilience using diphenylmethane diisocyanate and a polyol composition comprising: (a) a polyoxyethylene-polyoxypropylene-polyol, having an average nominal hydroxyl functionality of 2-8, an average equivalent weight of 1000-4000 and containing 10-25% by weight of oxyethylene groups; (b) 3 to 8 parts by weight of water as the sole blowing agent or optionally together with CO2 as the sole blowing agents; and (c) 2 to 20, preferably 2 to 10 parts by weight of a polyether polyol having an average nominal hydroxyl functionality of 2-6, an average equivalent weight of 200-600 and containing at least 60% by weight of oxyethylene groups; and optionally (d) up to 30 and preferably 2-25 parts by weight of particulate material which is dispersed in said polyol composition; the amounts of (b)(ii) to (b)(iv) being calculated per 100 parts by weight of (b)(i); and optionally (e) auxiliaries and additives.
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申请公布号 |
US2003087978(A1) |
申请公布日期 |
2003.05.08 |
申请号 |
US20020191371 |
申请日期 |
2002.07.01 |
申请人 |
HUNTSMAN INTERNATIONAL LLC |
发明人 |
PARFONDRY ALAIN;YU JIANMING |
分类号 |
C08G18/40;C08G18/76;C08G101/00;(IPC1-7):C08G18/00 |
主分类号 |
C08G18/40 |
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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