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219 条记录 (耗时 0.016 秒)

    Cycloolefin (co)polymers with a narrow molecular weight distribution and a process for the preparation thereof
    72.
    发明授权
    Cycloolefin (co)polymers with a narrow molecular weight distribution and a process for the preparation thereof 失效
    具有窄分子量分布的环烯烃（共）聚合物及其制备方法

    公开(公告)号：US5422409A

    公开(公告)日：1995-06-06

    申请号：US156929

    申请日：1993-11-22

    申请人： Michael-Joachim Brekner ,  Frank Osan

    发明人： Michael-Joachim Brekner ,  Frank Osan

    IPC分类号： C08F10/02 ,  C08F8/00 ,  C08F32/00 ,  C08F32/02 ,  C08F32/08 ,  C08F32/04 ,  C08L45/00

    CPC分类号： C08F32/08

    摘要： Polymers of polycyclic olefins such as, for example, norbornene or tetracyclododecene, or copolymers of polycyclic olefins with cycloolefins and/or 1-olefins with a very narrow molecular weight distribution are obtained without ring opening by a polymerization in which a catalyst which is composed of an aluminoxane and of a stereorigid, chiral metallocene compound of an element of groups IVb to VIb is used, and in which the reaction is stopped at a time when the molecular weight distribution Mw/Mn of the polymer formed is

    摘要翻译： 通过聚合得到多环烯烃的聚合物，例如降冰片烯或四环十二碳烯，或多环烯烃与非常窄分子量分布的环烯烃和/或1-烯烃的共聚物，其中由 使用铝氧烷和IVb至VIb族元素的立体刚性手性茂金属化合物，并且其中当所形成的聚合物的分子量分布Mw / Mn <2时反应停止。

    Plasticized polydicyclopentadiene and a method for making the same
    76.
    发明授权
    Plasticized polydicyclopentadiene and a method for making the same 失效
    增塑聚二环戊二烯及其制备方法

    公开(公告)号：US4436858A

    公开(公告)日：1984-03-13

    申请号：US378449

    申请日：1982-05-14

    申请人： Daniel W. Klosiewicz

    发明人： Daniel W. Klosiewicz

    IPC分类号： C08L65/00 ,  C08F2/04 ,  C08F4/00 ,  C08F32/08 ,  C08G61/06 ,  C08G61/08 ,  C08K5/10 ,  C08L7/00 ,  C08L21/00 ,  C08K5/12

    CPC分类号： C08G61/08 ,  C08F32/08

    摘要： Incorporation of an ester plasticizer having a solubility parameter from about 7.8 to about 10.2 (cal/cc).sup.1/2 increases the flexibility and impact strength of poly(dicyclopentadiene). In a preferred embodiment of the method for poly(dicyclopentadiene) synthesis, the plasticizer is incorporated into at least one or two parts of a metathesis-catalyst system: a catalyst/monomer solution or an activator/monomer solution. The two parts are then combined in the mixing head of a reaction injection molding machine and injected into a mold where the reaction mixture rapidly sets up into a thermoset polymer with greater flexibility and impact strength than is found in the corresponding unplasticized poly(dicyclopentadiene).

    摘要翻译： 加入溶解度参数为约7.8至约10.2（cal / cc）1/2的酯增塑剂增加了聚（二环戊二烯）的柔韧性和冲击强度。 在聚（二环戊二烯）合成方法的优选实施方案中，增塑剂被引入复分解催化剂体系的至少一个或两个部分：催化剂/单体溶液或活化剂/单体溶液。 然后将两部分组合在反应注射成型机的混合头中并注入到模具中，其中反应混合物迅速成为具有比在相应的未增塑的聚（二环戊二烯）中发现的更大的柔韧性和冲击强度的热固性聚合物。

    Cationic polymerization process
    78.
    发明授权
    Cationic polymerization process 失效
    阳离子聚合工艺

    公开(公告)号：US4016346A

    公开(公告)日：1977-04-05

    申请号：US654687

    申请日：1976-02-03

    申请人： Ronald Thomas Wojcik ,  Erwin Richard Ruckel

    发明人： Ronald Thomas Wojcik ,  Erwin Richard Ruckel

    IPC分类号： C08F4/00 ,  C08F4/06 ,  C08F32/00 ,  C08F32/08 ,  C08G61/00 ,  C08G61/06 ,  C08F10/14

    CPC分类号： C08F32/08

    摘要： There is provided a process for cationically polymerizing or co-polymerizing batchwise or continuously .alpha.-pinene by adding .alpha.-pinene either alone or in admixture with other terpene monomers, incrementally to a catalyst system comprising an aluminum halide and an antimony halide in the presence or absence of a (lower)alkyl, alkenyl or aralkyl halide in an inert solvent while controlling the temperature of reaction in the range of -30.degree. C. to +30.degree. C., drowning the polymerization mixture in water, separating the organic phase therefrom, removing the solvent therefrom and recovering a solid polymer in good yield.

    摘要翻译： 提供了通过单独或与其它萜烯单体混合加入α-蒎烯以分批或连续的α-蒎烯进行阳离子聚合或共聚的方法，该方法逐渐加入到包含卤化铝和卤化锑的催化剂体系中， 在惰性溶剂中不存在（低级）烷基，烯基或芳烷基卤化物，同时将反应温度控制在-30℃至+ 30℃的范围内，将聚合混合物浸没在水中，从其中分离有机相 从中除去溶剂并以良好的收率回收固体聚合物。