利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

10 条记录 (耗时 0.012 秒)

    Process for the preparation of liquid storable organic isocyanates containing carbodiimide and/or uretone imine groups and their use for the preparation of polyurethane plastics
    2.
    发明授权
    Process for the preparation of liquid storable organic isocyanates containing carbodiimide and/or uretone imine groups and their use for the preparation of polyurethane plastics 失效
    制备含有碳二亚胺和/或尿素酮组的液体有机异氰酸酯的方法及其制备聚氨酯塑料的用途

    公开(公告)号：US5202358A

    公开(公告)日：1993-04-13

    申请号：US884143

    申请日：1992-05-18

    申请人： Hans-Joachim Scholl ,  Rainer Welte

    发明人： Hans-Joachim Scholl ,  Rainer Welte

    IPC分类号： C07C263/18 ,  C07C265/14 ,  C07C267/00 ,  C07D229/00 ,  C08G18/79

    CPC分类号： C08G18/797 ,  C07C267/00 ,  C08G2101/0025

    摘要： The present invention relates to liquid storable organic isocyanates containing carbodiimide and/or uretone imine groups prepared by(a) partially carbodiimidizing isocyanate groups of an organic isocyanate with catalysts of the phospholine type, and(b) terminating the carbodiimidization reaction by the addition of a silylated acid corresponding to the formulaX--[Si(CH.sub.3).sub.3 ].sub.n in whichX represents the neutral acid residue obtained by removal of the acidic hydrogen atoms from an n-basic acid having a pK.sub.a value of at most 3, other than a hydrohalic acid, andn is an integer of 1 to 3.The invention further relates to the use of the liquid polyisocyanate mixtures according to the invention for the preparation of polyurethane plastics, preferably polyurethane foams, having improved burning behavior.

    摘要翻译： 本发明涉及通过以下步骤制备的含有碳二亚胺和/或脲酮亚胺基团的液体存储有机异氰酸酯：（a）将有机异氰酸酯的异氰酸酯基团部分碳化亚胺化，用磷酸酯型催化剂制备，和（b）通过加入碳酸二亚胺化反应终止碳二亚胺化反应 对应于式X- [Si（CH 3）3] n的甲硅烷基化的酸，其中X表示通过从pKa值至多为3的n-碱性酸除去酸性氢原子而获得的中性酸残基， 氢卤酸，n为1至3的整数。本发明还涉及根据本发明的液体多异氰酸酯混合物用于制备具有改进的燃烧行为的聚氨酯塑料，优选聚氨酯泡沫塑料的用途。

    Process for the production of substantially closed-cell rigid foams containing urethane, urea and biuret groups showing excellent adhesion to solid surfaces and their use
    3.
    发明授权
    Process for the production of substantially closed-cell rigid foams containing urethane, urea and biuret groups showing excellent adhesion to solid surfaces and their use 失效
    用于生产含有氨基甲酸酯，脲和缩二脲基团的基本上闭孔刚性泡沫的方法，其显示出对固体表面的优异粘附性及其用途

    公开(公告)号：US5418258A

    公开(公告)日：1995-05-23

    申请号：US712857

    申请日：1991-06-10

    申请人： Rainer Welte ,  Hans-Joachim Scholl

    发明人： Rainer Welte ,  Hans-Joachim Scholl

    IPC分类号： C08G18/10 ,  C08G18/30 ,  C08G18/48 ,  C08G101/00 ,  C08J9/02

    CPC分类号： C08G18/10 ,  C08G2101/0025 ,  C08G2101/0041 ,  C08G2101/0083

    摘要： Substantially closed-cell rigid foams containing urethane, urea and biuret groups are produced by reacting an NCO terminated prepolymer with a compound having at least two isocyanate-reactive hydrogen atoms and a molecular weight of from about 400 to about 10,000 in the presence of a catalyst and water by any of the known techniques. The NCO terminated prepolymer is the reaction product of x parts by weight of an at least difunctional polyol having an OH value of less than 100 with y parts by weight of an at least difunctional polyisocyanate. The ratio of x to y is at least 1:10. The product foams are particularly useful as insulating materials.

    摘要翻译： 含有氨基甲酸酯，尿素和缩二脲基团的基本上闭孔的刚性泡沫体是通过NCO封端的预聚物与具有至少两个异氰酸酯反应性氢原子的化合物和分子量为约400至约10,000的催化剂在催化剂 和水通过任何已知的技术。 NCO封端的预聚物是x重量份的OH值小于100的至少二官能多元醇与y重量份的至少二官能多异氰酸酯的反应产物。 x与y之比至少为1:10。 产品泡沫特别适用于绝缘材料。

    Process for the preparation of substantially closed-cell rigid foams containing urethane, urea, biuret, and isocyanurate groups and a method of use thereof
    6.
    发明授权
    Process for the preparation of substantially closed-cell rigid foams containing urethane, urea, biuret, and isocyanurate groups and a method of use thereof 失效
    用于制备含有氨基甲酸酯，脲，缩二脲和异氰脲酸酯基团的基本上闭孔的刚性泡沫的方法及其使用方法

    公开(公告)号：US5350780A

    公开(公告)日：1994-09-27

    申请号：US498192

    申请日：1990-03-23

    申请人： Rainer Welte ,  Hans J. Scholl

    发明人： Rainer Welte ,  Hans J. Scholl

    IPC分类号： C08G18/40 ,  C08G18/00

    CPC分类号： C08G18/4018 ,  C08G2101/0025 ,  C08G2101/005 ,  C08G2101/0058 ,  C08G2101/0083 ,  C08G2105/02

    摘要： The present invention relates to a process for the preparation of substantially closed-cell rigid foams containing urethane, urea, biuret, and isocyanurate groups comprising reacting, at an index of greater than 110, organic polyisocyanates with relatively high molecular weight polyots consisting of mixtures of (i) polyesters containing at least two hydroxyl groups and having an OH value of greater than 150 and/or polyethers containing at least two hydroxyl groups and having an OH value of greater than 200, and (ii) polyoxyalkylene polyethers containing ethylene oxide residues and least two hydroxyl groups and having an OH value of less than 100, in the presence of isocyanate trimerization catalysts and water as blowing agent. The foams of the invention can optionally be prepared optionally, in the further presence chain-extending and/or crosslinking agents and auxiliaries. and/or additives.The present invention also relates to a method using the foams of the invention as insulating materials and/or for reinforcing mechanical structural components.

    摘要翻译： 本发明涉及一种用于制备含有氨基甲酸酯，脲，缩二脲和异氰脲酸酯基团的基本上闭孔的刚性泡沫的方法，包括以大于110的指数反应有机多异氰酸酯与相对高分子量多元醇的混合物 （i）含有至少两个羟基并且OH值大于150的聚酯和/或含有至少两个羟基并且具有大于200的OH值的聚醚，和（ii）含有环氧乙烷残基的聚氧化烯聚醚和 在异氰酸酯三聚催化剂和水作为发泡剂存在下，OH值小于100时，最少两个羟基。 本发明的泡沫可以任选地在另外存在的链延伸和/或交联剂和助剂中进行制备。 和/或添加剂。 本发明还涉及使用本发明的泡沫作为绝缘材料和/或加强机械结构部件的方法。

    Polyisocyanate mixtures containing isocyanurate groups, a process for their production and their use for the production of polyurethane foams
    8.
    发明授权
    Polyisocyanate mixtures containing isocyanurate groups, a process for their production and their use for the production of polyurethane foams 失效
    含有异氰酸酯基团的聚异氰酸酯混合物，其生产方法及其用于生产聚氨酯泡沫的方法

    公开(公告)号：US5124370A

    公开(公告)日：1992-06-23

    申请号：US745585

    申请日：1991-08-15

    申请人： Hans J. Scholl ,  Rainer Welte ,  Gunter Gleitsmann

    发明人： Hans J. Scholl ,  Rainer Welte ,  Gunter Gleitsmann

    IPC分类号： C08G18/10 ,  C08G18/18 ,  C08G18/79 ,  C08G101/00

    CPC分类号： C08G18/794 ,  C08G18/10 ,  C08G18/1825 ,  C08G2101/0025 ,  C08G2101/005 ,  Y10S521/902

    摘要： Disclosed herein are liquid polyisocyanate mixtures containing isocyanurate groups and having an NCO content of 15 to 30% by weight obtainable by partial trimerization of the isocyanate groups of polyisocyanate mixtures of the diphenyl methane series containing 80 to 100% by weight diisocyanatodiphenyl methane isomers and 0 to 20% by weight higher than difunctional polyisocyanates of the diphenyl methane series, 40 to 80% by weight of the diisocyanatodiphenyl methane isomers consisting of 4,4'-diisocyanatodiphenyl methane, 20 to 60% by weight of 2,4'-diisocyanatodiphenyl methane and 0 to 8% by weight of 2,2'-diisocyanatodiphenyl methane and the percentages shown adding up to 100.

    摘要翻译： 本文公开了含有异氰脲酸酯基团并且具有15至30重量％的NCO含量的液体多异氰酸酯混合物，其可通过含有80至100重量％二异氰酸酯二苯基甲烷异构体的二苯基甲烷系列的异氰酸酯混合物的异氰酸酯基团的部分三聚得到，并且0至 比二苯甲烷系列的二官能多异氰酸酯高20重量％，40〜80重量％的由4,4'-二异氰酸根合二苯基甲烷，20〜60重量％的2,4'-二异氰酸根合二苯甲烷组成的二异氰酸二苯二甲烷异构体， 0至8重量％的2,2'-二异氰酸二苯基甲烷，并且显示的百分比高达100。

    Substantially closed-cell rigid foams containing urethane, urea and biuret groups and a process for their production
    9.
    发明授权
    Substantially closed-cell rigid foams containing urethane, urea and biuret groups and a process for their production 失效
    含有氨基甲酸酯，尿素和缩二脲基团的基本上封闭的刚性泡沫及其生产方法

    公开(公告)号：US5070115A

    公开(公告)日：1991-12-03

    申请号：US663221

    申请日：1991-03-01

    申请人： Rainer Welte ,  Hans-Joachim Scholl

    发明人： Rainer Welte ,  Hans-Joachim Scholl

    IPC分类号： C08G18/08 ,  C08G18/00 ,  C08G18/10 ,  C08G18/40 ,  C08G18/42 ,  C08G18/48 ,  C08G18/78 ,  C08G101/00 ,  C08J9/02

    CPC分类号： C08G18/78 ,  C08G18/10 ,  C08G18/4018 ,  C08G18/4244 ,  C08G18/425 ,  C08G18/4812 ,  C08G2101/0025 ,  C08G2101/0041 ,  C08G2101/0083

    摘要： Rigid substantially closed cell foams are made by reacting an organic isocyanate with a mixture of high molecular weight polyols in the presence of water, a catalyst and other optional materials such as chain extenders, crosslinking agents and flameproofing agents. The reactants are used in quantities such that the isocyanate to hydroxyl group index is from about 90 to about 150. The mixture of high molecular weight polyols is composed of (1) a polyester having at least two hydroxyl groups and an OH number greater than 150 and/or a polyether having at least two hydroxyl groups and an OH number greater than 200 and (2) a polyether having at least two hydroxyl groups and an OH number below 100. The foams produced in accordance with this process are useful as insulating materials and as structural reinforcing materials.

    摘要翻译： 通过在水，催化剂和其它任选材料如扩链剂，交联剂和防火剂的存在下使有机异氰酸酯与高分子量多元醇的混合物反应制备刚性基本上闭合的泡孔。 反应物的用量使得异氰酸酯与羟基指数为约90至约150.高分子量多元醇的混合物由（1）具有至少两个羟基并且OH数大于150的聚酯组成 和/或具有至少两个羟基并且OH数大于200的聚醚和（2）具有至少两个羟基并且OH数低于100的聚醚。根据该方法生产的泡沫可用作绝缘材料 并作为结构增强材料。