发明名称 |
PROCESS FOR PREPARING A POLYISOCYANURATE POLYURETHANE MATERIAL |
摘要 |
<p>A process for preparing a polyisocyanurate polyurethane material, which process comprises reacting a polyisocyanate and an isocyanate -reactive composition, wherein the reaction is conducted at an isocyanate index of 150 to 1500 and in the presence of a trimerisation catalyst, wherein the polyisocyanate consists of a) 80-100% by weight of diphenylmethane diisocyanate comprising at least 40%, preferably at least 60% and most preferably at least 85% by weight of 4,4'-diphenylmethane diisocyanate and/or a variant of said diphenylmethane diisocyanate which variant is liquid at 25'C and has an NCO value of at least 20% by weight (polyisocyanate a), and b) 20-0% by weight of another polyisocyanate (polyisocyanate b), and wherein the isocyanatereactive composition consists of a) 80-100% by weight of a polyether polyol having an average nominal functionality of 2-6, an average equivalent weight of 150-1000, an average molecular weight of 600-5000, an oxyethylene (EO) content of 75-100% by weight and b) 200% by weight of one or more other isocyanate-reactive compounds excluding water, the amount of polyol a) and isocyanate-reactive compound b) being calculated on the total amount of this polyol a) and compound b).</p> |
申请公布号 |
WO2004111101(A1) |
申请公布日期 |
2004.12.23 |
申请号 |
WO2004EP50898 |
申请日期 |
2004.05.24 |
申请人 |
HUNTSMAN INTERNATIONAL LLC;BLEYS, GERHARD JOZEF;LEENSLAG, JAN WILLEM;VERBEKE, HANS GODELIEVE GUIDO |
发明人 |
BLEYS, GERHARD JOZEF;LEENSLAG, JAN WILLEM;VERBEKE, HANS GODELIEVE GUIDO |
分类号 |
C08G18/22;C08G18/48;C08G18/79;(IPC1-7):C08G18/09 |
主分类号 |
C08G18/22 |
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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