Fluorinated polymers and methods for their preparation
    1.
    发明授权
    Fluorinated polymers and methods for their preparation 有权
    氟化聚合物及其制备方法

    公开(公告)号:US06433101B1

    公开(公告)日:2002-08-13

    申请号:US09453020

    申请日:1999-12-02

    IPC分类号: C08F818

    CPC分类号: C08F8/20 C08F8/18

    摘要: The present invention relates to the post-polymerization fluorination methods of polymers produced via ring-opening metathesis polymerization. Unlike prior art methods that result in low product yields and generally involve chemically aggressive reagents, the inventive methods produce fluorinated polymers in quantitative yields and under mild conditions. In preferred embodiments, a source of difluorocarbene is reacted with the desired polydiene to form a fluorinated polymer product. In preferred embodiments, the source of difluorocarbene is hexafluoropropylene oxide and the polydiene is poly-dicyclopentadiene (“poly-DCPD”). Fluorination and the concomitant removal of unsaturated bonds result in polymers having improved physical properties such as improved strength characteristics, enhanced oxidative and chemical stability, and low surface energies.

    摘要翻译: 本发明涉及通过开环易位聚合制备的聚合物的后聚合氟化方法。 不同于导致低产物产率并且通常涉及化学腐蚀性试剂的现有技术方法,本发明方法以定量产率和温和条件下产生氟化聚合物。 在优选的实施方案中,将二氟卡宾源与所需的聚二烯反应以形成氟化聚合物产物。 在优选的实施方案中,二氟卡宾的来源是六氟环氧丙烷,聚二烯是聚二环戊二烯(“poly-DCPD”)。 氟化和伴随去除不饱和键导致具有改进的物理性质的聚合物,例如改进的强度特性,增强的氧化和化学稳定性和低表面能。

    Polymerization of low grade DCPD monomers using an olefin metathesis
catalyst
    2.
    发明授权
    Polymerization of low grade DCPD monomers using an olefin metathesis catalyst 失效
    使用烯烃复分解催化剂聚合低级DCPD单体

    公开(公告)号:US6020443A

    公开(公告)日:2000-02-01

    申请号:US796865

    申请日:1997-02-06

    IPC分类号: C08F4/80 C08G61/08 C08F4/06

    CPC分类号: C08G61/08

    摘要: Methods for synthesizing polyDCPD via ROMP of low grade DCPD starting materials using Ruthenium or Osmium carbene complex catalyst. Transparent or translucent polyDCPD materials. The Ruthenium or Osmium carbene complex catalysts having the formula ##STR1## where M may be Os or Ru; R and R.sup.1 may be the same or different and may be hydrogen or a substituent group including C.sub.2 -C.sub.20 alkenyl, C.sub.2 -C.sub.20 alkynyl, C.sub.1 -C.sub.20 alkyl, aryl, C.sub.1 -C.sub.20 carboxylate, C.sub.1 -C.sub.20 alkoxy, C.sub.2 -C.sub.20 alkenyloxy, C.sub.2 -C.sub.20 alkynyloxy, aryloxy, C.sub.2 -C.sub.20 alkoxycarbonyl, C.sub.1 -C.sub.20 alkylthio, C.sub.1 -C.sub.20 alkylsulfonyl and C.sub.1 -C.sub.20 alkylsulfinyl; X and X.sup.1 may be the same or different and may be any anionic ligand; and L and L.sup.1 may be the same or different and may be neutral electron donor. The low grade DCPD starting materials containing less than about 97% by weight of DCPD monomers.

    摘要翻译: 使用钌或锇卡宾复合催化剂,通过低品位DCPD原料的ROMP合成聚DDP的方法。 透明或半透明的聚DDP材料。 具有下式的钌或锇卡宾络合物催化剂其中M可以是Os或Ru; R和R 1可以相同或不同,并且可以是氢或包括C 2 -C 20烯基,C 2 -C 20炔基,C 1 -C 20烷基,芳基,C 1 -C 20羧酸酯,C 1 -C 20烷氧基,C 2 -C 20链烯氧基, C 2 -C 20炔氧基,芳氧基,C 2 -C 20烷氧基羰基,C 1 -C 20烷硫基,C 1 -C 20烷基磺酰基和C 1 -C 20烷基亚磺酰基; X和X 1可以相同或不同,并且可以是任何阴离子配体; L和L 1可以相同或不同,并且可以是中性的电子给体。 含有低于约97重量%的DCPD单体的低品位DCPD原料。

    Rocket fuels based on metal hydrides and poly-DCPD
    3.
    发明授权
    Rocket fuels based on metal hydrides and poly-DCPD 失效
    基于金属氢化物和聚-DCPD的火箭燃料

    公开(公告)号:US06383319B1

    公开(公告)日:2002-05-07

    申请号:US09369051

    申请日:1999-08-04

    IPC分类号: C06B2700

    摘要: Preferred embodiments of the present invention relate to rocket fuels comprising metal hydrides and poly-dicyclopentadiene (“poly-DCPD”). Although poly-DCPD also has physical and chemical properties that are compatible with being used as a rocket fuel in its own right, its primary function is as a binder for the metal hydride. Illustrative examples of metal hydrides include but are not limited to as aluminum hydrides, lithium hydrides, and lithium aluminum hydrides.

    摘要翻译: 本发明的优选实施方案涉及包含金属氢化物和聚二环戊二烯(“poly-DCPD”)的火箭燃料。 虽然poly-DCPD也具有与其本身用作火箭燃料相容的物理和化学性质,但其主要功能是作为金属氢化物的粘合剂。 金属氢化物的说明性实例包括但不限于氢化铝,氢化锂和氢化锂铝。

    Electrolytic cell heads comprised of bulk polymerized cycloolefin
monomers
    7.
    发明授权
    Electrolytic cell heads comprised of bulk polymerized cycloolefin monomers 失效
    包含大量聚合环己烯单体的电解槽细胞

    公开(公告)号:US5087343A

    公开(公告)日:1992-02-11

    申请号:US534708

    申请日:1990-06-08

    IPC分类号: C08J5/00 C25B9/00 C25B15/08

    CPC分类号: C25B9/00

    摘要: A molded, one piece electrolytic cell head is provided which is obtained from a closed mold. The structure weighs more than 100 pounds and is comprised of bulk polymerized monomers having norbornene functionality. The structure provides improved performance over cell heads comprised of fiber glass reinforced polyester since fiber reinforcement is not required.

    摘要翻译: 提供从闭合的模具获得的模制的一体式电解池头。 结构重量大于100磅,由具有降冰片烯功能的本体聚合单体组成。 由于不需要纤维增强,该结构提供了由玻璃纤维增​​强聚酯组成的电池头的改进的性能。