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26 条记录 (耗时 0.026 秒)

    Laminated dressing
    3.
    发明授权
    Laminated dressing 失效
    层压敷料

    公开(公告)号：US4748974A

    公开(公告)日：1988-06-07

    申请号：US15404

    申请日：1987-02-17

    申请人： Roland Richter ,  Wolfram Mayer ,  Hanns P. Muller ,  Dietmar Schapel ,  Dietmar Strache

    发明人： Roland Richter ,  Wolfram Mayer ,  Hanns P. Muller ,  Dietmar Schapel ,  Dietmar Strache

    IPC分类号： A61D9/00 ,  A61F13/04 ,  A61L15/07

    CPC分类号： A61L15/07 ,  A61F13/04

    摘要： A stiff, water resistant laminated medical or veterinary dressing is described along with a procedure for forming the final hardened dressing. The dressing is obtained by treating a gypsum bandage with an aqueous dispersion of a synthetic resin and then forming a layer from it which is immediately adjacent to a layer formed from a water hardenable synthetic resin bandage. Either layer may be formed first and further layers may be formed so long as the layers alternate between those formed from wraps of the gypsum bandages and those formed from wraps of the synthetic resin bandage.

    摘要翻译： 描述了一种刚性，防水的层压医用或兽用敷料以及用于形成最终硬化敷料的程序。 通过用合成树脂的水性分散体处理石膏绷带，然后从其形成与由可水淬硬化的合成树脂绷带形成的层紧邻的层来获得敷料。 可以首先形成任一层，并且可以形成另外的层，只要这些层在由石膏绷带的包裹形成的层和由合成树脂绷带的包裹形成的层之间交替。

    Process for the production of oligomeric polyisocyanates and their use in the production of polyurethane plastics
    5.
    发明授权
    Process for the production of oligomeric polyisocyanates and their use in the production of polyurethane plastics 失效
    制备低聚多异氰酸酯的方法及其在聚氨酯塑料生产中的应用

    公开(公告)号：US4614785A

    公开(公告)日：1986-09-30

    申请号：US765472

    申请日：1985-08-14

    申请人： Roland Richter ,  Hanns P. Muller ,  Werner Kubitza ,  Theodor Engbert ,  Gerhard Mennicken

    发明人： Roland Richter ,  Hanns P. Muller ,  Werner Kubitza ,  Theodor Engbert ,  Gerhard Mennicken

    IPC分类号： C08G18/00 ,  B01J31/00 ,  C07B61/00 ,  C07D251/34 ,  C08G18/02 ,  C08G18/79 ,  C08G18/80

    CPC分类号： C07D251/34 ,  C08G18/79

    摘要： The present invention relates to a process for the production of oligomeric polyisocyanates by the dimerization or trimerization of a portion of the isocyanate groups in organic polyisocyanates in the presence of tertiary phosphines or in the presence of a peralkylated phosphorus acid triamides as catalyst, followed by termination of the dimerization and/or trimerization reaction at the required degree of oligomerization by the addition of a catalyst poison, characterized in that a sulfonyl isocyanate is used as the catalyst poison.The present invention also relates to the use of the oligomeric polyisocyanates obtained by this process, optionally in admixture with unreacted starting polyisocyanate or optionally blocked by blocking agents for isocyanate groups, as the polyisocyanate component in the production of polyurethane plastics.

    摘要翻译： 本发明涉及通过在有机多异氰酸酯存在下在有机多异氰酸酯存在下或在作为催化剂的全烷基化的磷酸三酰胺存在下，将部分异氰酸酯基团二聚或三聚制备低聚多异氰酸酯的方法，然后终止 的二聚和/或三聚反应在所需的低聚度下通过加入催化剂毒物，其特征在于使用磺酰基异氰酸酯作为催化剂毒物。 本发明还涉及通过该方法获得的低聚多异氰酸酯作为聚氨酯塑料生产中的多异氰酸酯组分，任选与未反应的起始多异氰酸酯混合或任选地通过异氰酸酯基团的封闭剂封闭。

    Isocyanurate group-containing polyisocyanates
    7.
    发明授权
    Isocyanurate group-containing polyisocyanates 失效
    含异氰脲酸酯基的多异氰酸酯

    公开(公告)号：US4851531A

    公开(公告)日：1989-07-25

    申请号：US74380

    申请日：1987-07-16

    申请人： Reinhard Halpaap ,  Gerhard Klein ,  Roland Richter ,  Hanns P. Muller ,  Josef Pedain ,  Hans-Joachim Kreuder

    发明人： Reinhard Halpaap ,  Gerhard Klein ,  Roland Richter ,  Hanns P. Muller ,  Josef Pedain ,  Hans-Joachim Kreuder

    IPC分类号： C08G18/00 ,  C07D251/34 ,  C08G18/02 ,  C08G18/79 ,  C09D5/46 ,  C09D175/00 ,  C09D175/12

    CPC分类号： C08G18/792 ,  C07D251/34 ,  C08G2150/20

    摘要： The present invention is directed to isocyanato isocyanurates prepared from diisocyanates which contain a sterically unhindered isocyanate group bound to a primary aliphatic carbon atom and a sterically hindered isocyanate group which is bound to a tertiary carbon atom forming part of a cycloaliphatic ring system, said diisocyanate having an NCO content of about 20 to 50% by weight. The present invention is further directed to a process for preparing these isocyanato isocyanurates by catalytic trimerization and the use of the isocyanato isocyanurates in a process for the production of polyisocyanate polyaddition products, preferably two-component polyurethane stoving lacquers.

    摘要翻译： 本发明涉及由二异氰酸酯制备的异氰酸根合异氰脲酸酯，该二异氰酸酯包含与主要脂族碳原子结合的空间上不受阻碍的异氰酸酯基团和与形成脂环族环系的一部分的叔碳原子结合的空间位阻异氰酸酯基团，所述二异氰酸酯具有 约20至50重量％的NCO含量。 本发明还涉及一种通过催化三聚制备这些异氰酸酯异氰脲酸酯的方法，以及在制备多异氰酸酯加聚产物的方法中使用异氰酸酯基异氰脲酸酯的方法，优选为双组分聚氨酯烘烤漆。

    Process for the preparation of mixed trimers from organic isocyanates, the mixed trimers obtained according to the process and the use thereof for the production of polyurethanes
    8.
    发明授权
    Process for the preparation of mixed trimers from organic isocyanates, the mixed trimers obtained according to the process and the use thereof for the production of polyurethanes 失效
    从有机异氰酸酯制备混合三聚物的方法，根据该方法获得的混合三聚物及其在生产聚氨酯中的用途

    公开(公告)号：US4518761A

    公开(公告)日：1985-05-21

    申请号：US439086

    申请日：1982-11-04

    申请人： Roland Richter ,  Hanns P. Muller ,  Kuno Wagner ,  Bernd Riberi ,  Jurg Frohlich

    发明人： Roland Richter ,  Hanns P. Muller ,  Kuno Wagner ,  Bernd Riberi ,  Jurg Frohlich

    IPC分类号： C07D251/34 ,  C08G18/00 ,  C08G18/79 ,  C08G18/70

    CPC分类号： C07D251/34 ,  C08G18/791 ,  Y10T428/22

    摘要： The present invention is directed to a new process for the preparation of mixed trimers by at least partly trimerizing the isocyanate groups of at least two organic isocyanates of a reactivity which differs in the sense of the trimerization reaction, in the presence of trimerization catalysts and optionally interrupting the trimerization reaction at the respectively desired degree of trimerization, in which process the less reactive isocyanate component is introduced, polymerization is then commenced in the presence of the catalyst with the trimerization of at least 0.1% of the isocyanate groups and the more reactive isocyanate component is finally metered into the reaction mixture thus obtained; the mixed trimers obtained according to this process; and the use of the mixed trimers having free isocyanate groups obtained by this process, optionally in a form blocked by blocking agents for organic polyisocyanates, as a starting material for the production of polyurethane plastics materials.

    摘要翻译： 本发明涉及一种新的制备混合三聚体的方法，该方法是在三聚催化剂存在下，至少部分地将三聚反应意义上的至少两种有机异氰酸酯的反应性的异氰酸酯基团三聚，其反应性不同， 在分别期望的三聚程度下中断三聚反应，其中引入反应活性较低的异氰酸酯组分较少，然后在催化剂存在下开始聚合，三聚化至少为0.1％的异氰酸酯基团，反应活性较高的异氰酸酯 将组分最终计量加入由此获得的反应混合物中; 根据该方法得到的混合三聚物; 以及使用通过该方法获得的具有游离异氰酸酯基团的混合三聚体，任选地以用于有机聚异氰酸酯的封闭剂封闭的形式作为用于制备聚氨酯塑料材料的起始材料。