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公开(公告)号：US5605935A
公开(公告)日：1997-02-25
申请号：US206562
申请日：1994-03-03
申请人： Giovanni Parrinello , David Thorpe , Gabriel Verhelst , Julian F. G. Hopper , Mireille B. A. De Witte
发明人： Giovanni Parrinello , David Thorpe , Gabriel Verhelst , Julian F. G. Hopper , Mireille B. A. De Witte
IPC分类号： C08G18/00 , C08G18/08 , C08G18/10 , C08G18/48 , C08G18/66 , C08G65/00 , C08G65/26 , C08G65/30 , C08G65/32 , C08J11/24 , C08L71/02 , C08J11/04
CPC分类号： C08J11/24 , C08G18/4866 , C08G18/6674 , C08G65/2609 , C08L71/02 , C08G2101/0008 , C08G2101/0025 , C08J2375/04 , Y02W30/706 , Y10S521/912
摘要： Process for recycling flexible foams by glycolysis and extraction. The glycolysis is conducted by allowing the foam to react with low molecular weight polyols, then allowing the mixture to separate in two phases.
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12.发明授权Polyisocyanate compositions and low density flexible polyurethane foams produced therewith 失效多异氰酸酯组合物和由此生产的低密度柔性聚氨酯泡沫
公开(公告)号：US5621016A
公开(公告)日：1997-04-15
申请号：US214876
申请日：1994-03-16
CPC分类号： C08G18/7664 , C08G18/10 , C08G18/4837 , C08G2101/0008 , C08G2101/005 , C08G2101/0058 , C08G2101/0075 , C08G2101/0083
摘要： Polyisocyanate compositions are provided which comprise the reaction product of a diphenylmethane diisocyanate composition comprising 25 to 70% by weight of 2,4'-diphenylmethane diisocyanate and an isocyanate-reactive polyoxyethylene polyoxypropylene polyahl having an ethylene oxide content of at least 30% by weight, a number average hydroxyl equivalent weight of 700-2000 and an average nominal hydroxyl functionality of 2-6, the reaction product having a free NCO content of 2-31% by weight.
摘要翻译： 提供了多异氰酸酯组合物，其包含二苯甲烷二异氰酸酯组合物的反应产物，所述二苯基甲烷二异氰酸酯组合物包含25至70重量％的2,4'-二苯基甲烷二异氰酸酯和具有至少30重量％的环氧乙烷含量的异氰酸酯反应性聚氧乙烯聚氧丙烯多元醇， 数均羟基当量为700-2000，平均标称羟基官能度为2-6，反应产物的游离NCO含量为2-31重量％。
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公开(公告)号：US5314928A
公开(公告)日：1994-05-24
申请号：US774442
申请日：1991-10-10
申请人： Gabriel Verhelst
发明人： Gabriel Verhelst
IPC分类号： C08G18/10 , C08G18/30 , C08G18/32 , C08G18/48 , C08G18/63 , C08G18/65 , C08G18/76 , C08G101/00 , C08J9/08
CPC分类号： C08G18/632 , C08G18/10 , C08G18/4841 , C08G2101/0008 , C08G2101/005 , C08G2101/0058 , C08G2101/0083
摘要： A method for preparing a polyurethane/polyurea flexible foam which comprises reacting:A. an organic prepolymer-containing polyisocyanate composition of NCO content of from 2 to 15% by weight;B. an isocyanate reactive component in which the isocyanate-reactive species comprises at least 40% by weight of water and at least one chain extender of molecular weight below 1000 which is selected from those having at least two amine groups of which at least one is directly attached to a cyclic hydrocarbon residue and from diamino polyols.
摘要翻译： 一种制备聚氨酯/聚脲柔性泡沫的方法，其包括使A.含有2至15重量％的NCO含量的含有机预聚物的多异氰酸酯组合物反应; B.异氰酸酯反应性组分，其中异氰酸酯反应性物质包含至少40重量％的水和至少一种分子量低于1000的扩链剂，其选自具有至少两个胺基的那些，其中至少一个是至少一个是 直接连接到环状烃残基和二氨基多元醇上。
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公开(公告)号：US5344584A
公开(公告)日：1994-09-06
申请号：US809810
申请日：1991-12-18
CPC分类号： C08G18/4804 , C08G18/4009 , C08G2130/00 , Y10S516/04 , Y10S516/05 , Y10S516/06 , Y10S516/07
摘要： An isocyanate-reactive composition comprising a first isocyanate-reactive compound and a second isocyanate-reactive compound which is normally immiscible with the first isocyanate-reactive compound and a stabilizing amount of a surfactant compound comprising a carboxylic acid ester or amide carrying a terminal acid group selected from carboxymethyl, sulphate, sulphonate, phosphate and phosphonate, provided that the methyl radical of the carboxymethyl group is not directly attached to a carbon atom of an unsubstituted hydrocarbon chain containing two or more carbon atoms.
摘要翻译： 异氰酸酯反应性组合物，其包含第一异氰酸酯反应性化合物和通常与第一异氰酸酯反应性化合物不混溶的第二异氰酸酯反应性化合物和稳定量的表面活性剂化合物，其包含带有末端酸基团的羧酸酯或酰胺 选自羧甲基，硫酸根，磺酸根，磷酸根和膦酸根，条件是羧甲基的甲基基团不直接连接到含有两个或更多个碳原子的未取代烃链的碳原子上。
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