发明名称 |
PROCESS FOR MAKING RIGID POLYURETHANE OR URETHANE-MODIFIED POLYISOCYANURATE FOAMS |
摘要 |
Process for preparing rigid polyurethane or urethane-modified polyisocyanurate foams from polyisocyanates and polyfunctional isocyanate-reactive compounds in the presence of blowing agents wherein the polyfunctional isocyanate-reactive compounds comprise a polyether polyol having a hydroxyl number of between 50 and 650 mg KOH/g obtained by reacting a polyfunctional initiator first with ethylene oxide and subsequently with propylene oxide wherein the propoxylation degree is between 0.33 and 2 mole propylene oxide per active hydrogen atom in the initiator and wherein the molar ratio of ethylene oxide to propylene oxide in said polyether polyol is at least 2. |
申请公布号 |
CA2934971(A1) |
申请公布日期 |
2015.07.30 |
申请号 |
CA20152934971 |
申请日期 |
2015.01.20 |
申请人 |
HUNTSMAN INTERNATIONAL LLC |
发明人 |
DEDECKER, KRISTOF;BINAGHI, LUCA;CORIO, MAURO |
分类号 |
C08G18/48;C08G18/09;C08G18/16;C08G18/18;C08G18/20;C08G18/22;C08G18/42;C08G18/50;C08G18/76;C08G18/79;C08K5/521 |
主分类号 |
C08G18/48 |
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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