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    Olefin tetrapolymer and process for the preparation thereof
    13.
    发明授权
    Olefin tetrapolymer and process for the preparation thereof 失效
    烯烃四元共聚物及其制备方法

    公开(公告)号：US3903062A

    公开(公告)日：1975-09-02

    申请号：US36918473

    申请日：1973-08-08

    Applicant: SNAM PROGETTI

    Inventor： ARRIGHETTI SERGIO ,  CESCA SEBASTIANO ,  GHETTI GIUSEPPE ,  BRUZZONE MARIO ,  CINELLI ERMANNO

    IPC: C08F210/18 ,  C08F1/34 ,  C08F1/08 ,  C08F3/16

    CPC classification number: C08F210/18 ,  C08F210/06 ,  C08F2500/17 ,  C08F2500/25

    Abstract: Vulcanizable olefin tetrapolymers are described which are comprised of ethylene, an alpha-olefin having at least 3 carbon atoms, at least one conventional terpolymer such as exodicyclopentadiene, and a minor amount of a polycyclic polyene containing an endomethylene system ortho-condensed with another hydrocarbon ring, and wherein the two carbon atoms common to two rings belong to a conjugated diene system whose double bonds are in the ring other than the endomethylene ring.

    Abstract translation: 描述了由乙烯，具有至少3个碳原子的α-烯烃，至少一种常规三元共聚物如外双环戊二烯组成的可硫化烯烃四元共聚物，以及少量含有与另一个邻位稠合的内部亚甲基系统的多环多烯 烃环，其中两个环共有的两个碳原子属于双键在除了亚甲基环之外的环中的共轭二烯体系。

    Process for the polymerization and copolymerization of isobutylene
    14.
    发明授权
    Process for the polymerization and copolymerization of isobutylene 失效
    异丁烯的聚合和共聚方法

    公开(公告)号：US3872069A

    公开(公告)日：1975-03-18

    申请号：US33994073

    申请日：1973-03-09

    Applicant: SNAM PROGETTI

    Inventor： PRIOLA ALDO ,  CESCA SEBASTIANO ,  FERRARIS GIUSEPPE

    IPC: C08F4/00 ,  C08F4/06 ,  C08F4/42 ,  C08F10/00 ,  C08F210/12 ,  C08D1/26 ,  C08D3/10

    CPC classification number: C08F10/00 ,  C08F4/14

    Abstract: A process is disclosed whereby butyl rubber of high molecular weight and excellent physical characteristics is readily prepared by copolymerizing isobutylene and isoprene in the presence of a catalyst system consisting of: A. A METALORGANIC COMPOUND (E.G., Al Et2 Cl); and B. AN ORGANIC COMPOUND HAVING FROM 1 TO 24 CARBON ATOMS AND AN ELECTRON AFFINITY VALUE IN THE RANGE FROM 0.3 TO 2 ELECTRON VOLTS (E.G., 1.3.5.-TRINITROBENZENE).

    Abstract translation: 公开了一种方法，其中通过在由以下组成的催化剂体系的存在下异丁烯和异戊二烯共聚来容易地制备高分子量和优异物理特性的丁基橡胶：

    Curable amorphous olefinic terpolymers
    16.
    发明授权
    Curable amorphous olefinic terpolymers 失效
    可固化无定形烯烃三元共聚物

    公开(公告)号：US3647767A

    公开(公告)日：1972-03-07

    申请号：US3647767D

    申请日：1969-09-05

    Applicant: SNAM PROGETTI

    Inventor： CESCA SEBASTIANO ,  ROGGERO ARNALDO ,  MARCONI WALTER

    IPC: C08F10/00 ,  C08F210/00 ,  C08F17/00

    CPC classification number: C08F210/00 ,  C08F10/00 ,  C08F4/00

    Abstract: NOVEL TERPOLYMERS ARE DISCLOSED COMPRISING TWO DIFFERENT A-OLEFINS AND AN ORTHOCONDENSED ISOPROPYLIDENECONTAINING POLYCYCLIC POLYENE HAVING THE FORMULS:

    2-R1,3-R2,3A-R3,4-R4,1-(CH3-C(-CH3)=)-3A,4,7,7A-TETRAHYDRO

    INDEN

    2-R1,3-R2,4-R5,4A-R3,5-R4,1-(CH3-C(-CH3)=)-1,4,4A,5,8,8A-

    HEXAHYDRONAPHTHALENE OR

    1-R2,2-R1,3-(CH3-C(-CH3)=)-3,4,4A,5,8,8A-HEXAHYDRO

    NAPHTHALENE

    WHEREIN EACH OF SAID R'',R2,R3,R4 AND R5 IS H, METHYL OR ETHYL, PROVIDED AT LEAST ONE OF SID R1 OR R2 IS METHYL OR ETHYL, THE CONCENTRATION OF SAID POLYCYCLIC POLYENE IN THE TERPOLYMER BEING FROM 1 TO 30% BY WEIGHT AND THE MOLE RATIO OF SAID DIFFERENT ALPHA-OLEFINS BEING IN THE RANGE FROM 1:4 TO 4:1.

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