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公开(公告)号：US20070232712A1
公开(公告)日：2007-10-04
申请号：US11575719
申请日：2005-09-28
IPC分类号： C08G18/00
CPC分类号： C08G18/482 , C08G18/4883 , C08G18/5027 , C08G18/7664 , C08G2101/0025 , C08G2101/005
摘要： The invention relates to a process for producing rigid polyurethane foams by reacting a) polyisocyanates with b) compounds having at least two hydrogen atoms which are reactive toward isocyanate groups in the presence of c) blowing agents wherein a mixture of b1) a polyether alcohol which has a functionality of 4 and a hydroxyl number of from 380 to 450 mg KOH/g and a viscosity of greater than 12 000 mPa·s and can be prepared by addition of ethylene oxide and/or propylene oxide onto TDA, b2) a polyether alcohol which has a functionality of from 5 to 7.5 and a hydroxyl number of from 380 to 480 mg KOH/g and can be prepared by addition of propylene oxide onto sucrose and/or sorbitol, b3) a polyether alcohol which has a functionality of from 2 to 4 and a hydroxyl number of from 140 to 250 mg KOH/g and can be prepared by addition of ethylene oxide and propylene oxide onto TDA or of propylene oxide onto 2-, 3- or 4-functional alcohols, amines other than TDA or castor oil derivatives, is used as compounds b) having at least two hydrogen atoms which are reactive toward isocyanate groups.
摘要翻译： 本发明涉及通过使a）多异氰酸酯与b）具有至少两个在异氰酸酯基上反应的氢原子的化合物在c）发泡剂的反应中制备硬质聚氨酯泡沫的方法，其中b1） 具有4的官能度和380至450mg KOH / g的羟值，并且粘度大于12000mPa.s，并且可以通过在TDA上加入环氧乙烷和/或环氧丙烷来制备，b2）聚醚 醇，其功能为5至7.5，羟基数为380至480mg KOH / g，并且可以通过在蔗糖和/或山梨醇上加入环氧丙烷来制备，b3）具有以下官能度的聚醚醇： 2至4，羟基数为140至250mg KOH / g，并且可以通过在TDA或环氧丙烷上加入环氧乙烷和环氧丙烷至2-，3-或4-官能的醇，除TDA之外的胺来制备 或蓖麻油衍生物，是使用 d作为化合物b）具有至少两个对异氰酸酯基团具有反应性的氢原子。
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公开(公告)号：US07893124B2
公开(公告)日：2011-02-22
申请号：US11575719
申请日：2005-09-28
IPC分类号： C08G18/28
CPC分类号： C08G18/482 , C08G18/4883 , C08G18/5027 , C08G18/7664 , C08G2101/0025 , C08G2101/005
摘要： The invention relates to a process for producing rigid polyurethane foams by reacting a) polyisocyanates with b) compounds having at least two hydrogen atoms which are reactive toward isocyanate groups in the presence of c) blowing agents wherein a mixture of b1) a polyether alcohol which has a functionality of 4 and a hydroxyl number of from 380 to 450 mg KOH/g and a viscosity of greater than 12 000 mPa·s and can be prepared by addition of ethylene oxide and/or propylene oxide onto TDA, b2) a polyether alcohol which has a functionality of from 5 to 7.5 and a hydroxyl number of from 380 to 480 mg KOH/g and can be prepared by addition of propylene oxide onto sucrose and/or sorbitol, b3) a polyether alcohol which has a functionality of from 2 to 4 and a hydroxyl number of from 140 to 250 mg KOH/g and can be prepared by addition of ethylene oxide and propylene oxide onto TDA or of propylene oxide onto 2-, 3- or 4-functional alcohols, amines other than TDA or castor oil derivatives, is used as compounds b) having at least two hydrogen atoms which are reactive toward isocyanate groups.
摘要翻译： 本发明涉及通过使a）多异氰酸酯与b）具有至少两个在异氰酸酯基上反应的氢原子的化合物在c）发泡剂的反应中制备硬质聚氨酯泡沫的方法，其中b1） 具有4的官能度和380-450mg KOH / g的羟基数值和大于12000mPa·s的粘度，并且可以通过在TDA上加入环氧乙烷和/或环氧丙烷来制备，b2）聚醚 醇，其功能为5至7.5，羟基数为380至480mg KOH / g，并且可以通过在蔗糖和/或山梨醇上加入环氧丙烷来制备，b3）具有以下官能度的聚醚醇： 2至4，羟基数为140至250mg KOH / g，并且可以通过在TDA或环氧丙烷上加入环氧乙烷和环氧丙烷至2-，3-或4-官能的醇，除TDA之外的胺来制备 或蓖麻油衍生物，是我们 化合物b）具有至少两个对异氰酸酯基团具有反应性的氢原子。
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