公开(公告)号：US5059633A

公开(公告)日：1991-10-22

申请号：US619380

申请日：1990-11-28

申请人： Heinz-Dieter Lutter ,  Werner Hinz ,  Walter Decker ,  Reinhard Leppkes ,  Erhard Reich ,  Reinhard Peters ,  Volker Haase ,  Michael Lugmayr

发明人： Heinz-Dieter Lutter ,  Werner Hinz ,  Walter Decker ,  Reinhard Leppkes ,  Erhard Reich ,  Reinhard Peters ,  Volker Haase ,  Michael Lugmayr

IPC分类号： C08G18/48 ,  C08G18/72 ,  C08G65/26 ,  C08G65/28 ,  C08G101/00 ,  C08J9/00

CPC分类号： C08G18/4841 ,  C08G18/4837 ,  C08G65/2624 ,  C08G2101/0008 ,  C08G2101/0083 ,  Y10S521/914

摘要： Flexible polyurethane foams having low compressive strength and relatively good tensile strength are prepared by reactinga) a block polyoxypropylenepolyoxyethylenepolyol mixture which has a hydroxyl number of from 14 to 65, contains from 2 to 9% by weight, based on the weight of the polyoxypropylene units, of ethylene oxide units bonded in the terminal position and is prepared by anionic polymerization of the alkylene oxides with an initiator mixture having an average functionality of from 2.3 to 2.8 and consisting of water and glycerol and/or trimethylolpropane, or a mixture of these block polyoxypropylenepolyoxyethylenepolyol mixtures with bi- and/or trifunctional polyoxypropylenepolyoxyethylenepolyols having a hydroxyl number of from 20 to 70, andb) if required, low molecular weight chain extenders withc) organic and/or modified organic polyisocyanates in the presence ofd) catalysts,e) blowing agents, preferably water, and if required,f) assistants and/or additives.

摘要翻译： 具有低抗压强度和相对良好拉伸强度的柔性聚氨酯泡沫通过使基于聚氧丙烯单元的重量的羟基数为14至65的嵌段聚氧丙烯聚氧乙烯多元醇混合物反应而制备，所述混合物含有2至9重量％ 的环氧乙烷单元，其结合在末端位置，并且通过环氧烷烃与平均官能度为2.3至2.8的引发剂混合物的阴离子聚合制备，并由水和甘油和/或三羟甲基丙烷组成，或这些嵌段 具有羟基数为20至70的双官能和/或三官能聚氧丙烯聚氧乙烯多元醇的聚氧丙烯聚氧乙烯多元醇混合物，以及b）如果需要，在d）催化剂存在下，c）有机和/或改性有机多异氰酸酯的低分子量增链剂，e ）发泡剂，优选水，如果需要，f）助剂和/或添加剂。

公开(公告)号：US5494941A

公开(公告)日：1996-02-27

申请号：US15746

申请日：1993-02-10

申请人： Heinz-Dieter Lutter ,  Bernd Bruchmann ,  Claudia Spang ,  Roland Minges ,  Dietrich Scherzer ,  Michael Lugmayr ,  Ruth Zschiesche

发明人： Heinz-Dieter Lutter ,  Bernd Bruchmann ,  Claudia Spang ,  Roland Minges ,  Dietrich Scherzer ,  Michael Lugmayr ,  Ruth Zschiesche

IPC分类号： C08G18/10 ,  C08G18/12 ,  C08G18/40 ,  C08G18/48 ,  C08G18/65 ,  C08G18/72 ,  C08G18/76 ,  C08G101/00 ,  C08J9/02 ,  C08G18/00

CPC分类号： C08G18/7664 ,  C08G18/12 ,  C08G18/409 ,  C08G18/4812 ,  C08G2101/0008 ,  C08G2101/0041 ,  C08G2101/0083

摘要： The invention relates to a process for the preparation of CFC-free, flexible polyurethane foams or molded foams by reactingA) liquid polyisocyanate mixtures containing bonded urethane groups and having a content of NCO groups of from 20 to 30% by weight, these mixtures themselves being prepared by reacting a mixture of diphenylmethane diisocyanates and polyphenyl-polymethylene polyisocyanates (crude diphenylmethane diisocyanate) with a polyether-polyol mixture, having a hydroxyl number of from 120 to 25, of at least one polyoxypropylene glycol and at least one trifunctional polyoxypropylene-polyoxyethylene glycol having a content of ethylene oxide units of from 90 to 10% by weight or by reacting 4,4'-diphenylmethane diisocyanate (diphenylmethyl diisocyanate) or an diphenylmethane diisocyanate isomer mixture with said polyether-polyol mixture to give an NCO-containing quasi-prepolymer and diluting this quasi-prepolymer with crude diphenylmethane diisocyanate, withB) relatively high-molecular-weight polyhydroxyl compounds.

摘要翻译： 本发明涉及一种制备无CFC的柔性聚氨酯泡沫或模制泡沫的方法，其通过使A）含有键合的氨基甲酸酯基团的液体多异氰酸酯混合物并且具有20至30重量％的NCO基团的含量，这些混合物本身 通过使二苯基甲烷二异氰酸酯和聚苯基多亚甲基多异氰酸酯（粗二苯基甲烷二异氰酸酯）与羟基数为120至25的聚醚 - 多元醇混合物的混合物与至少一种聚氧丙烯二醇和至少一种三官能聚氧丙烯 - 聚氧乙烯 乙二醇的含量为90〜10重量％的环氧乙烷单元，或通过使4,4'-二苯基甲烷二异氰酸酯（二苯基甲基二异氰酸酯）或二苯基甲烷二异氰酸酯异构体混合物与所述聚醚 - 多元醇混合物反应，得到含NCO的准 - 预聚物，并用粗二苯基甲烷二异氰酸酯稀释该准预聚物，B）相对较高 小重量多羟基化合物。

公开(公告)号：US5597885A

公开(公告)日：1997-01-28

申请号：US430926

申请日：1995-06-07

申请人： Heinz-Dieter Lutter ,  Bernd Bruchmann ,  Claudia Spang ,  Roland Minges ,  Dietrich Scherzer ,  Michael Lugmayr ,  Ruth Zschiesche

发明人： Heinz-Dieter Lutter ,  Bernd Bruchmann ,  Claudia Spang ,  Roland Minges ,  Dietrich Scherzer ,  Michael Lugmayr ,  Ruth Zschiesche

IPC分类号： C08G18/12 ,  C08G18/48 ,  C08G18/10

CPC分类号： C08G18/4812 ,  C08G18/12 ,  C08G2101/0008 ,  C08G2101/005 ,  C08G2101/0058 ,  C08G2101/0083

摘要： The invention relates to a process for the preparation of CFC-free, flexible polyurethane foams or molded foams by reactingA) liquid polyisocyanate mixtures containing bonded urethane groups and having a content of NCO groups of from 20 to 30% by weight, these mixtures themselves being prepared by reacting a mixture of diphenylmethane diisocyanates and polyphenyl-polymethylene polyisocyanates (crude diphenylmethane diisocyanate) with a polyether-polyol mixture, having a hydroxyl number of from 120 to 25, of at least one polyoxypropylene glycol and at least one trifunctional polyoxypropylene-polyoxyethylene glycol having a content of ethylene oxide units of from 90 to 10% by weight or by reacting 4,4'-diphenylmethane diisocyanate (diphenylmethyl diisocyanate) or an diphenylmethane diisocyanate isomer mixture with said polyether-polyol mixture to give an NCO-containing quasi-prepolymer and diluting this quasi-prepolymer with crude diphenylmethane diisocyanate, withB) relatively high-molecular-weight polyhydroxyl compounds.

摘要翻译： 本发明涉及一种制备无CFC的柔性聚氨酯泡沫或模制泡沫的方法，其通过使A）含有键合的氨基甲酸酯基团的液体多异氰酸酯混合物并且具有20至30重量％的NCO基团的含量，这些混合物本身 通过使二苯基甲烷二异氰酸酯和聚苯基 - 多亚甲基多异氰酸酯（粗二苯基甲烷二异氰酸酯）与羟基数为120至25的聚醚 - 多元醇混合物的混合物与至少一种聚氧丙烯二醇和至少一种三官能聚氧丙烯 - 聚氧乙烯 乙二醇的含量为90〜10重量％的环氧乙烷单元，或通过使4,4'-二苯基甲烷二异氰酸酯（二苯基甲基二异氰酸酯）或二苯基甲烷二异氰酸酯异构体混合物与所述聚醚 - 多元醇混合物反应，得到含NCO的准 - 预聚物，并用粗二苯基甲烷二异氰酸酯稀释该准预聚物，B）相对较高 小重量多羟基化合物。

公开(公告)号：US5596063A

公开(公告)日：1997-01-21

申请号：US430924

申请日：1995-06-08

申请人： Heinz-Dieter Lutter ,  Bernd Bruchmann ,  Claudia Spang ,  Roland Minges ,  Dietrich Scherzer ,  Michael Lugmayr ,  Ruth Zschiesche

发明人： Heinz-Dieter Lutter ,  Bernd Bruchmann ,  Claudia Spang ,  Roland Minges ,  Dietrich Scherzer ,  Michael Lugmayr ,  Ruth Zschiesche

IPC分类号： C08G18/12 ,  C08G18/48 ,  C08G18/10

CPC分类号： C08G18/4812 ,  C08G18/12 ,  C08G2101/0008 ,  C08G2101/005 ,  C08G2101/0058 ,  C08G2101/0083

摘要： The invention relates to a process for the preparation of CFC-free, flexible polyurethane foams or molded foams by reactingA) liquid polyisocyanate mixtures containing bonded urethane groups and having a content of NCO groups of from 20 to 30% by weight, these mixtures themselves being prepared by reacting a mixture of diphenylmethane diisocyanates and polyphenyl-polymethylene polyisocyanates (crude diphenylmethane diisocyanate) with a polyether-polyol mixture, having a hydroxyl number of from 120 to 25, of at least one polyoxypropylene glycol and at least one trifunctional polyoxypropylene-polyoxyethylene glycol having a content of ethylene oxide units of from 90 to 10% by weight or by reacting 4,4'-diphenylmethane diisocyanate (diphenylmethyl diisocyanate) or an diphenylmethane diisocyanate isomer mixture with said polyether-polyol mixture to give an NCO-containing quasi-prepolymer and diluting this quasi-prepolymer with crude diphenylmethane diisocyanate, withB) relatively high-molecular-weight polyhydroxyl compounds.

摘要翻译： 本发明涉及一种制备无CFC的柔性聚氨酯泡沫或模制泡沫的方法，其通过使A）含有键合的氨基甲酸酯基团的液体多异氰酸酯混合物并且具有20至30重量％的NCO基团的含量，这些混合物本身 通过使二苯基甲烷二异氰酸酯和聚苯基 - 多亚甲基多异氰酸酯（粗二苯基甲烷二异氰酸酯）与羟基数为120至25的聚醚 - 多元醇混合物的混合物与至少一种聚氧丙烯二醇和至少一种三官能聚氧丙烯 - 聚氧乙烯 乙二醇的含量为90〜10重量％的环氧乙烷单元，或通过使4,4'-二苯基甲烷二异氰酸酯（二苯基甲基二异氰酸酯）或二苯基甲烷二异氰酸酯异构体混合物与所述聚醚 - 多元醇混合物反应，得到含NCO的准 - 预聚物，并用粗二苯基甲烷二异氰酸酯稀释该准预聚物，B）相对较高 小重量多羟基化合物。