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1.发明授权
公开(公告)号：US5169873A
公开(公告)日：1992-12-08
申请号：US664624
申请日：1991-03-04
IPC分类号： C08G18/08 , C08G18/00 , C08G101/00 , C08J9/02 , C08J9/14
CPC分类号： C08J9/143 , C08J2203/146 , C08J2375/04
摘要： Process for the manufacture of foams with the aid of blowing agents containing fluoroalkanes and fluorinated ethers, and foams obtained by this process. The invention relates to a process for the manufacture of foams based on polyisocyanates by the reaction of polyisocyanates, compounds containing at least two hydrogen atoms reactive towards isocyanate groups, blowing agents and, if appropriate, other additives. The blowing agents used consist to the extent of at least 10 mol % of at least one fluoroalkane of formula (I), C.sub.a H.sub.b F.sub.c, where a=2-6, b=1-12, and c=2-13, and at least one fluorinated ether of formula (II), C.sub.a H.sub.b F.sub.c O-C.sub.d H.sub.e F.sub.f, where a=1-6, b=1-12, c=1-12, d=1-2, e=0-5 and f=0-5. The invention further relates to the foams obtained by this process.
摘要翻译： 借助含有氟代烷烃和氟化醚的发泡剂制造泡沫的方法，以及通过该方法得到的泡沫体。 本发明涉及通过多异氰酸酯，含有至少两个对异氰酸酯基团反应的氢原子的化合物，发泡剂和适当的其它添加剂的反应制备基于多异氰酸酯的泡沫体的方法。 使用的发泡剂的至少10摩尔％至少一种式（I）的氟烷烃，CaHbFc，其中a = 2-6，b = 1-12和c = 2-13，至少 一种式（II）的氟化醚，CaHbFcO-CdHeFf，其中a = 1-6，b = 1-12，c = 1-12，d = 1-2，e = 0-5和f = 0-5。 本发明还涉及通过该方法获得的泡沫。
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公开(公告)号：US5164418A
公开(公告)日：1992-11-17
申请号：US625307
申请日：1990-12-10
CPC分类号： C08J9/146 , C08J2375/04
摘要： The invention realtes to a process for producing foams based on polyisocyanates by reacting polyisocyanates, compounds having at least two hydrogen atoms reactive towards isocyanate groups, blowing agents and, if appropriate, further additives. In this process, a blowing agent is used which is composed to the extent of at least 10 mol % of one or more fluoroalkanes of the formula IC.sub.a H.sub.b F.sub.cwhere a=4-6, b=1-12 and c=2-13.
摘要翻译： 本发明涉及通过使多异氰酸酯，具有至少两个对异氰酸酯基团具有反应性的氢原子的化合物，发泡剂和（如果合适的话）其它添加剂反应来生产基于多异氰酸酯的泡沫的方法。 在该方法中，使用发泡剂，其至少为10摩尔％的一种或多种式I CaHbFc的氟烷烃，其中a = 4-6，b = 1-12和c = 2-13。
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公开(公告)号：US5137932A
公开(公告)日：1992-08-11
申请号：US622839
申请日：1990-12-05
CPC分类号： C08J9/143 , C08J2203/146 , C08J2375/04 , Y10S521/91
摘要： The invention relates to a process for producing foams based on polyisocyanates by reacting polyisocyanates, compounds having at least two hydrogen atoms reactive towards isocyanate groups, blowing agents and, if appropriate, further additives. In this process, a blowing agent is used which is composed to the extent of at least 10 mol % of one or more fluorinated ethers of the formulaC.sub.a H.sub.b F.sub.c --O--C.sub.d H.sub.e F.sub.fwhere______________________________________ a = 1-6 d = 1-2 b = 1-12 e = 0-5 c = 1-12 f = 0-5. ______________________________________
摘要翻译： 本发明涉及通过使多异氰酸酯，具有至少两个对异氰酸酯基团具有反应性的氢原子的化合物，发泡剂和（如果合适的话）其它添加剂反应来制备基于多异氰酸酯的泡沫的方法。 在该方法中，使用发泡剂，其至少为10摩尔％的一种或多种式CaHbFc-O-CdHeFf的氟化醚的程度，其中-a = 1-6d = 1-2-b = 1-12 e = 0-5 -c = 1-12 f = 0-5。 -
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公开(公告)号：US6040375A
公开(公告)日：2000-03-21
申请号：US869864
申请日：1997-06-02
IPC分类号： C08J9/02 , C01B33/158 , C04B26/02 , C04B38/08 , C08J9/00 , C08J9/04 , C08J9/12 , C08J5/01 , C08K3/34
CPC分类号： C08J9/0066 , C04B26/02 , C08J2375/04
摘要： The invention relates to a composite foam comprising from 10 to 90% by volume of SiO.sub.2 aerogel particles and from 90 to 10% by volume of a foam, preferably a polyurethane and/or polyolefin foam, a process for its preparation and its use.
摘要翻译： 本发明涉及一种复合泡沫，其包含10至90体积％的SiO 2气凝胶颗粒和90至10体积％的泡沫，优选聚氨酯和/或聚烯烃泡沫，其制备方法及其用途。
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5.发明授权Stabilization of polyether or polyester molding compositions against premature reaction 失效聚醚或聚酯模塑组合物防止过早反应的稳定性
公开(公告)号：US4463189A
公开(公告)日：1984-07-31
申请号：US420938
申请日：1982-09-21
申请人： Bernd Hoffmann , Klaus-Jurgen Behme
发明人： Bernd Hoffmann , Klaus-Jurgen Behme
CPC分类号： C08J9/0014 , C08G18/28 , C08G18/3281 , C08K5/01 , C08J2375/04
摘要： Mixtures which are used for the production of polyurethane foam and which contain amines having primary or secondary aliphatic hydroxyl groups, and also customary quantities of trichlorotrifluoroethane and/or trichlorofluoromethane as a blowing agent, can be stabilized against the premature reaction of the components by adding 0.05 to 5% by weight of 2,4-diphenyl-4-methylpentene in which the ratio of the 2,4-diphenyl-4-methyl-1-pentene isomer to the 2,4-diphenyl-4-methyl-2-pentene isomer is 1:1 to 9:1, the percentages relating to the chlorofluoroalkane. In particular, these mixtures can be stabilized by adding 0.1 to 5% by weight of a mixture consisting of 45 to 89% by weight of 2,4-diphenyl-4-methyl-1-pentene, 10 to 45% by weight of 2,4-diphenyl-4-methyl-2-pentene and 1 to 20% by weight of 1,1,3-trimethyl-3-phenylindane.
摘要翻译： 用于生产聚氨酯泡沫并含有伯或仲脂族羟基的胺的混合物，以及常规量的三氯三氟乙烷和/或三氯氟甲烷作为发泡剂，可以通过加入组分的过早反应来稳定化 至5重量％的2,4-二苯基-4-甲基戊烯，其中2,4-二苯基-4-甲基-1-戊烯异构体与2,4-二苯基-4-甲基-2-戊烯的比例 异构体为1：1至9：1，与氯氟烷烃有关的百分比。 特别地，这些混合物可以通过添加0.1至5重量％的由45至89重量％的2,4-二苯基-4-甲基-1-戊烯，10至45重量％的2 ，4-二苯基-4-甲基-2-戊烯和1〜20重量％的1,1,3-三甲基-3-苯基茚满。
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