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73 条记录 (耗时 0.03 秒)

    Urea group-containing polyisocyanates modified with long chain compounds and a process for their preparation
    31.
    发明授权
    Urea group-containing polyisocyanates modified with long chain compounds and a process for their preparation 失效
    用长链化合物改性的含脲基的多异氰酸酯及其制备方法

    公开(公告)号：US5183876A

    公开(公告)日：1993-02-02

    申请号：US651693

    申请日：1991-02-06

    申请人： Richard Kopp ,  Gerhard Grogler ,  Heinrich Hess

    发明人： Richard Kopp ,  Gerhard Grogler ,  Heinrich Hess

    IPC分类号： C08G18/10 ,  C08G18/78

    CPC分类号： C08G18/7825 ,  C08G18/10

    摘要： The present invention is directed to novel urea group-containing polyisocyanates modified with long chain compounds having molecular weights of 400 to about 10,000. The present invention is also directed to a process for the preparation of modified urea group-containing polyisocyanates by reacting starting polyisocyanates which are free from urea groups with water to form urea groups in an inert reaction medium or in an aqueous mixture containing a dispersion stabilizer, wherein the starting polyisocyanates are mixed or reacted with long chain compounds having molecular weights of 400 to about 10,000 before the reacting the starting polyisocyanates with water and/or the long chain compounds are added to the inert reaction medium and/or to the water.

    摘要翻译： 本发明涉及用分子量为400至10,000的长链化合物改性的新型含脲基的多异氰酸酯。 本发明还涉及通过在惰性反应介质中或含有分散稳定剂的含水混合物中将不含脲基的起始多异氰酸酯与水反应以形成脲基的方法制备含改性脲基的多异氰酸酯的方法， 其中起始多异氰酸酯与分子量为400至约10,000的长链化合物混合或反应，然后将起始多异氰酸酯与水和/或长链化合物反应加入到惰性反应介质和/或水中。

    Cold setting compositions, a process for the production thereof and the use thereof for polyurethane production
    34.
    发明授权
    Cold setting compositions, a process for the production thereof and the use thereof for polyurethane production 失效
    冷定型组合物，其制备方法及其在聚氨酯生产中的应用

    公开(公告)号：US4716182A

    公开(公告)日：1987-12-29

    申请号：US891725

    申请日：1986-07-29

    申请人： Heinrich Hess ,  Gerhard Grogler ,  Richard Kopp

    发明人： Heinrich Hess ,  Gerhard Grogler ,  Richard Kopp

    IPC分类号： C08G18/00 ,  C08G18/08 ,  C08G18/64 ,  C08G18/70 ,  C08G18/80 ,  C08G18/14

    CPC分类号： C08G18/8058 ,  C08G18/707 ,  C08G18/80 ,  C08G18/8038

    摘要： The present invention relates to cold setting compositions of (A) suspensions of solid polyisocyanates with retarded reactivity in aliphatic polyamines, and which are stable under storage due to a polyadduct covering, and (B) polyols and/or water. The activation of the composition is caused by the polyol or water. Additional activating materials can also be added for hardening. Such compositions, which already harden at ambient temperature, are stable under storage, have a long potlife for processing and, in relation to the potlife, have a very short hardening time to the final reaction product.

    摘要翻译： 本发明涉及（A）在脂肪族多胺中具有延迟反应性的固体多异氰酸酯的悬浮液的冷定型组合物，并且由于多加合物覆盖而在储存下稳定，和（B）多元醇和/或水。 组合物的活化是由多元醇或水引起的。 还可以加入额外的活化材料用于硬化。 已经在环境温度下已经硬化的这种组合物在储存下是稳定的，具有长的加工适用期，并且相对于适用期，对最终反应产物具有非常短的硬化时间。

    Process for the preparation of low molecular weight 4,4'-diphenylmethane-uretdione-diisocyanates
    37.
    发明授权
    Process for the preparation of low molecular weight 4,4'-diphenylmethane-uretdione-diisocyanates 失效
    制备低分子量4,4'-二苯基甲烷 - 二酮二异氰酸酯的方法

    公开(公告)号：US4521338A

    公开(公告)日：1985-06-04

    申请号：US404106

    申请日：1982-08-02

    申请人： Gerhard Grogler ,  Richard Kopp

    发明人： Gerhard Grogler ,  Richard Kopp

    IPC分类号： C07B61/00 ,  C07D229/00 ,  C08G18/79

    CPC分类号： C07D229/00 ,  C08G18/798

    摘要： Low molecular weight 4,4'-diphenylmethane-uretdione-diisocyanates corresponding to the formula: ##STR1## wherein n is a number from 0 to 1,are made by dimerizing diphenylmethane-4,4'-diisocyanate at a temperature of 50.degree. C. or less in a mixture of non-polar and moderately polar solvents in the presence of a dimerization catalyst. The dimerization product may then be worked up at low temperatures (i.e., .ltoreq.50.degree. C.). The dimerization products of diphenylmethane-diisocyanate thus obtained generally have only a small amount of oligomeric uretdione-diisocyanates present. These dimerization products may be used advantageously in the synthesis of polyurethanes.

    摘要翻译： 对应于下式的低分子量4,4'-二苯基甲烷 - 脲二酮 - 二异氰酸酯：其中n为0至1的数，通过二苯基甲烷-4,4'- 二异氰酸酯在50℃或更低的温度下在非极性和中等极性溶剂的混合物中在二聚催化剂存在下进行。 然后可以在低温下（即

    Aromatic diisocyanates containing N,N-disubstituted sulfonamide groups and processes for their production
    38.
    发明授权
    Aromatic diisocyanates containing N,N-disubstituted sulfonamide groups and processes for their production 失效
    含有N，N-二取代磺酰胺基团的芳族二异氰酸酯及其制备方法

    公开(公告)号：US4496491A

    公开(公告)日：1985-01-29

    申请号：US401036

    申请日：1982-07-22

    申请人： Richard Kopp ,  Gerhard Grogler ,  Helmut Reiff ,  Dieter Dieterich

    发明人： Richard Kopp ,  Gerhard Grogler ,  Helmut Reiff ,  Dieter Dieterich

    IPC分类号： C08G18/00 ,  C07C67/00 ,  C07C241/00 ,  C07C265/14 ,  C07D295/26 ,  C08G18/77 ,  C07C119/048

    CPC分类号： C07D295/26 ,  C08G18/775

    摘要： Diisocyanates corresponding to the formula ##STR1## in which R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and R.sup.6 (an isocyanate-containing radical) are as defined herein are made by several processes. These diisocyanates may be made by phosgenating the diamine in which the diisocyanate is based. They may also be produced by treating the bis-urethane of the tertiary alcohol corresponding to the diisocyanate with phosgene. Such diisocyanates may also be made by treating a specific type of bis-urea with hydrogen chloride. The diisocyanates corresponding to the above-given formula are particularly useful in the production of polyurethanes having good flame-proof and mechanical properties.

    摘要翻译： 其中R 1，R 2，R 3，R 4，R 5和R 6（含异氰酸酯的基团）如本文所定义的式“IMAGE”的二异氰酸酯通过几种方法制备。 这些二异氰酸酯可以通过使二异氰酸酯所基于的二胺光气化而制成。 它们也可以通过用光气处理对应于二异氰酸酯的叔醇的双 - 氨基甲酸酯来制备。 这种二异氰酸酯也可以通过用氯化氢处理特定类型的双脲来制备。 对应于上述给定配方的二异氰酸酯特别可用于生产具有良好的阻燃和机械性能的聚氨酯。

    Process for the preparation of polyurethane elastomers
    40.
    发明授权
    Process for the preparation of polyurethane elastomers 失效
    制备聚氨酯弹性体的方法

    公开(公告)号：US4587275A

    公开(公告)日：1986-05-06

    申请号：US429707

    申请日：1982-09-30

    申请人： Richard Kopp ,  Holger Meyborg ,  Gerhard Grogler ,  Jurgen Schwindt

    发明人： Richard Kopp ,  Holger Meyborg ,  Gerhard Grogler ,  Jurgen Schwindt

    IPC分类号： C08G18/00 ,  C08G18/10 ,  C08G18/32 ,  C08G18/38 ,  C08G18/65 ,  C08G18/14

    CPC分类号： C08G18/3861 ,  C08G18/10

    摘要： Polyurethane urea elastomers are produced by reacting polyisocyanates with compounds containing at least two isocyanate reactive hydrogen atoms having a molecular weight of 400 to 10,000 and mononuclear or dinuclear aromatic diamines. The aromatic diamines must have at least one sulfonamide group as a substituent on at least one of their aromatic rings. Known chain lengthening agents, activators, blowing agents, auxiliary agents and additives may also be included in the reaction mixture.Polyurethane elastomers produced by this process have excellent mechanical properties. In particular, such elastomers are soft yet have high tear propagation resistance.

    摘要翻译： 聚氨酯脲弹性体是通过使多异氰酸酯与分子量为400至10,000的至少两个异氰酸酯反应性氢原子和单核或双核芳族二胺的化合物反应来制备的。 芳族二胺必须在至少一个它们的芳环上具有至少一个磺酰胺基作为取代基。 已知的增链剂，活化剂，发泡剂，辅助剂和添加剂也可以包括在反应混合物中。 通过该方法生产的聚氨酯弹性体具有优异的机械性能。 特别地，这种弹性体是柔软的但具有高的抗撕裂传播性。