利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

37 条记录 (耗时 0.031 秒)

    Polyalkoxysilyl-terminated polydiorganosiloxanes, methods for their preparation, and room temperature vulcanizable compositions containing them
    3.
    发明授权
    Polyalkoxysilyl-terminated polydiorganosiloxanes, methods for their preparation, and room temperature vulcanizable compositions containing them 失效
    聚烷氧基甲硅烷基封端的聚二有机硅氧烷，其制备方法和含有它们的室温可硫化组合物

    公开(公告)号：US4863992A

    公开(公告)日：1989-09-05

    申请号：US225992

    申请日：1988-07-29

    申请人： Jeffrey H. Wengrovius ,  John E. Hallgren ,  Judith Stein ,  Gary M. Lucas

    发明人： Jeffrey H. Wengrovius ,  John E. Hallgren ,  Judith Stein ,  Gary M. Lucas

    IPC分类号： C08G77/08 ,  C08G77/18

    CPC分类号： C08G77/18 ,  C08G77/08

    摘要： Polyalkoxysilyl-terminated polydiorganosiloxanes which are relatively stable in viscosity over prolonged storage periods are prepared by endcapping a silanol-terminated polydiorganosiloxane in the presence of a catalytic amount of an acidic amine salt which subsequently decomposes to substantially inert products, preferably an amine salt of formic acid, and in the absence of silicon-nitrogen compounds and enoxysilanes normally used as catalyst quenchers and scavengers. The products are useful for the preparation of scavenger-free room temperature vulcanizable compositions, particularly when combined with certain N-alkoxy-silylalkyl-substituted compounds as adhesion promoters.

    摘要翻译： 在延长保存期间粘度相对稳定的聚烷氧基甲硅烷基封端的聚二有机硅氧烷通过在催化量的酸性胺盐存在下封端硅烷醇封端的聚二有机硅氧烷来制备，其随后分解成基本上惰性的产物，优选甲酸的胺盐 ，并且在没有通常用作催化剂猝灭剂和清除剂的硅氮化合物和烯氧硅烷的情况下。 该产品可用于制备无清除剂的室温可硫化组合物，特别是当与某些N-烷氧基 - 甲硅烷基烷基取代的化合物作为粘合促进剂组合时。

    Method for making silicone-polyester copolymers
    6.
    发明授权
    Method for making silicone-polyester copolymers 失效
    硅氧烷聚酯共聚物的制备方法

    公开(公告)号：US4539379A

    公开(公告)日：1985-09-03

    申请号：US613945

    申请日：1984-05-25

    申请人： John E. Hallgren

    发明人： John E. Hallgren

    IPC分类号： C08G81/00 ,  C08G77/445 ,  C08F283/02

    CPC分类号： C08G77/445

    摘要： A method is provided for making silicone-polyester block polymers comprising effecting reaction between an aminoalkylpolydiorganosiloxane and a polyester, such as a polyalkyleneterephthalate, under reduced pressure and under molten conditions.

    摘要翻译： 提供了一种制备聚硅氧烷聚酯嵌段聚合物的方法，包括在减压和熔融条件下，在氨基烷基聚二有机硅氧烷和聚酯如聚对苯二甲酸亚烷基酯之间进行反应。

    Synthesis of polycarbonate from dialkyl carbonate and bisphenol diester
    7.
    发明授权
    Synthesis of polycarbonate from dialkyl carbonate and bisphenol diester 失效
    由碳酸二烷基酯和双酚二酯合成聚碳酸酯

    公开(公告)号：US4452968A

    公开(公告)日：1984-06-05

    申请号：US479049

    申请日：1983-03-25

    申请人： Donald A. Bolon ,  John E. Hallgren

    发明人： Donald A. Bolon ,  John E. Hallgren

    IPC分类号： C08G63/00 ,  C08G64/14 ,  C08G64/20 ,  C08G64/30 ,  C08G64/36 ,  C08G63/62

    CPC分类号： C08G64/36 ,  C08G64/14 ,  C08G64/30

    摘要： Polycarbonates are formed by the interaction of a bisphenol diester, carbon monoxide and oxygen. The initial polycarbonate product is an oligomer which, upon heat treatment, polymerizes to a high molecular weight polycarbonate. The products produced according to the present invention are chainstopped prior to heat treatment, making them less thermally and oxidatively sensitive.

    摘要翻译： 聚碳酸酯通过双酚二酯，一氧化碳和氧的相互作用形成。 初始聚碳酸酯产物是一种低聚物，其在热处理时聚合成高分子量聚碳酸酯。 根据本发明生产的产品在热处理之前是链式固定的，使得它们的热和氧化性较差。

    Catalytic aromatic carbonate process
    8.
    发明授权
    Catalytic aromatic carbonate process 失效
    催化芳香族碳酸盐工艺

    公开(公告)号：US4201721A

    公开(公告)日：1980-05-06

    申请号：US892509

    申请日：1978-04-03

    申请人： John E. Hallgren

    发明人： John E. Hallgren

    IPC分类号： C07C68/00 ,  C08G64/36

    CPC分类号： C08G64/36 ,  C07C68/005

    摘要： An improved catalytic aromatic carbonate process which comprises contacting under substantially anhydrous reaction conditions a phenol, carbon monoxide, an oxidant, a base, and the Group VIIIB element selected from ruthenium, rhodium, palladium, osmium, iridium or platinum. The resulting aromatic mono- and poly-carbonates are useful in the preparation of polycarbonates or as polycarbonates per se, respectively, which can be molded or formed into films, sheets, fibers, laminates or reinforced plastics by conventional techniques.

    摘要翻译： 一种改进的催化芳香族碳酸酯方法，其包括在基本上无水的反应条件下使苯酚，一氧化碳，氧化剂，碱和选自钌，铑，钯，锇，铱或铂的第VIIIB族元素接触。 所得到的芳族单碳酸酯和聚碳酸酯可用于分别制备聚碳酸酯或聚碳酸酯本身，其可以通过常规技术被模塑或制成薄膜，片材，纤维，层压材料或增强塑料。