利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

8 条记录 (耗时 0.023 秒)

    Catalyst for the preparation of linear carbon monoxide/alpha-olefin copolymers
    3.
    发明授权
    Catalyst for the preparation of linear carbon monoxide/alpha-olefin copolymers 失效
    用于制备线性一氧化碳/α-烯烃共聚物的催化剂

    公开(公告)号：US5565547A

    公开(公告)日：1996-10-15

    申请号：US441137

    申请日：1995-05-15

    申请人： John G. Hefner ,  Brian W. S. Kolthammer

    发明人： John G. Hefner ,  Brian W. S. Kolthammer

    IPC分类号： B01J31/16 ,  B01J31/18 ,  B01J31/24 ,  C07F15/00 ,  C08G67/02

    CPC分类号： C08G67/02 ,  B01J31/1805 ,  B01J31/2404 ,  B01J31/2409 ,  C07F15/0066 ,  B01J2531/0247 ,  B01J2531/824

    摘要： Novel catalyst compositions comprising a cationic transition metal complex of the formula(Pd(II)S.sub.4-x L.sub.x).sup.+2 (A).sup.-n ywherein:Pd(II) is palladium having a valence of +2;S is a synthesis solvent;L is a monodendate, bidendate or tridendate ligand or ligands having one or more bonding sites;x is an integer from 1 to 3 and is equal to the total number of ligand bonding sites;A is a weakly or non-coordinating anion capable or stabilizing the complex in its cationic form; andn is 1 or 2 and y is 2 or 1;provided that(i) when n is 1, y is 2 and when n is 2, y is 1; and(ii) when the anion A is tetrafluoroborate, the organometallic complex is not (tris(acetonitrile) palladium(II) triphenylphosphine), bis(acetonitrile) palladium(II) bis(triphenylphosphine)), ((acetonitrile) palladium (II) tris(triphenylphosphine)) or (bis(acetonitrile)palladium(II) 1,3-bis (diphenylphosphino)propane). The new catalyst compositions are useful for the copolymerization of carbon monoxide and at least one ethylenically unsaturated hydrocarbon to produce linear alternating polymers. The rate of polymerization is enhanced by including an alcohol, such as methanol, in the polymerization mixture.

    摘要翻译： 新型催化剂组合物，其包含式（Pd（II）S4-xLx）+2（A）-ny的阳离子过渡金属络合物，其中：Pd（II）是价数为+2的钯; S是合成溶剂; L是具有一个或多个键合位点的单体，贱金属或三配体配体或配体; x是1至3的整数，并且等于配体键合位点的总数; A是能够或稳定其阳离子形式的络合物的弱或非配位阴离子; n为1或2，y为2或1; 条件是（i）当n为1时，y为2，当n为2时，y为1; 有机金属络合物不是（三（乙腈）钯（II）三苯基膦），双（乙腈）钯（II）双（三苯基膦）），（（乙腈）钯（II） 三（三苯基膦））或（双（乙腈）钯（II）1,3-双（二苯基膦基）丙烷）。 新的催化剂组合物可用于一氧化碳和至少一种烯键式不饱和烃的共聚以产生线性交替聚合物。 通过在聚合混合物中包括醇如甲醇来提高聚合速率。

    Homogeneous catalysts and olefin polymerization process
    5.
    发明授权
    Homogeneous catalysts and olefin polymerization process 失效
    均相催化剂和烯烃聚合方法

    公开(公告)号：US5312938A

    公开(公告)日：1994-05-17

    申请号：US42027

    申请日：1993-04-02

    申请人： John G. Hefner ,  Brian W. S. Kolthammer

    发明人： John G. Hefner ,  Brian W. S. Kolthammer

    IPC分类号： C07F7/28 ,  C07F17/00 ,  C08F4/659 ,  C08F4/6592 ,  C08F10/00

    CPC分类号： C08F10/00 ,  C07F17/00 ,  C07F7/28 ,  C08F4/65912 ,  C08F4/6592 ,  Y10S526/943

    摘要： Olefins are polymerized in the presence of a homogeneous catalyst represented by the formula LTi(NR.sub.2).sub.3 wherein L is a .sub.II -bonded ligand selected from the group consisting of indenyl, C.sub.1 -C.sub.4 alkyl substituted indenyl, --OSiR.sub.3 substituted indenyl, R is a C.sub.1 -C.sub.4 alkyl group wherein each R attached to the same nitrogen atom is the same, but the R groups attached to different nitrogen atoms can be the same or different from those attached to the other nitrogen atoms.

    摘要翻译： 烯烃在由式LTi（NR2）3表示的均相催化剂存在下聚合，其中L是选自茚基，C 1 -C 4烷基取代的茚基，-OSiR 3取代的茚基的II键合的配体，R是 其中连接到相同氮原子上的每个R 1相同的C 1 -C 4烷基，但连接到不同氮原子上的R基团可以与与其它氮原子连接的那些相同或不同。

    Catalysts prepared from tetrakis(dialkylamide or diarylamide) derivatives of titanium and polymerization of olefins therewith
    6.
    发明授权
    Catalysts prepared from tetrakis(dialkylamide or diarylamide) derivatives of titanium and polymerization of olefins therewith 失效
    由四（二烷基酰胺或二芳基酰胺）钛衍生物制备的催化剂和烯烃聚合反应

    公开(公告)号：US4956323A

    公开(公告)日：1990-09-11

    申请号：US404724

    申请日：1989-09-08

    申请人： John G. Hefner

    发明人： John G. Hefner

    IPC分类号： C08F10/00

    CPC分类号： C08F10/00

    摘要： Ziegler-Natta catalysts for polymerizing .alpha.-olefins are prepared by the addition of tetrakis(dialkylaminde or diarylamide) derivatives of titanium, and a metal-containing reducing agent such as ethyl aluminum dichloride to a suitable support material such as magnesium chloride. Olefins are polymerized in the presence of these supported catalysts and an aluminum containing cocatalyst or activator such as triethylaluminum.

    摘要翻译： 用于聚合α-烯烃的齐格勒 - 纳塔催化剂是通过将钛（二烷基亚胺基或二芳基酰胺）衍生物和含金属的还原剂如二氯化乙基铝添加到合适的载体材料如氯化镁中来制备的。 在这些负载的催化剂和含铝的助催化剂或活化剂如三乙基铝的存在下，烯烃聚合。

    Catalysts prepared from tetrakis(dialkylamide or diarylamide) derivatives of titanium and polymerization of olefins therewith
    8.
    发明授权
    Catalysts prepared from tetrakis(dialkylamide or diarylamide) derivatives of titanium and polymerization of olefins therewith 失效
    由四（二烷基酰胺或二芳基酰胺）钛衍生物制备的催化剂和烯烃聚合反应

    公开(公告)号：US4892914A

    公开(公告)日：1990-01-09

    申请号：US295855

    申请日：1989-01-11

    申请人： John G. Hefner

    发明人： John G. Hefner

    IPC分类号： C08F4/64 ,  C08F10/00

    CPC分类号： C08F10/00 ,  C08F2410/03

    摘要： Ziegler-Natta catalysts for polymerizing .alpha.-olefins are prepared by the addition of tetrakis(dialkylamide or diarylamide) derivatives of titanium, and a metal-containing reducing agent such as ethyl aluminum dichloride to a suitable support material such as magnesium chloride. Olefins are polymerized in the presence of these supported catalysts and an aluminum containing cocatalyst or activator such as triethylaluminum.

    摘要翻译： 用于聚合α-烯烃的齐格勒 - 纳塔催化剂通过将钛（二烷基酰胺或二芳基酰胺）衍生物和含金属的还原剂如二氯化乙基铝添加到合适的载体材料如氯化镁中来制备。 在这些负载的催化剂和含铝的助催化剂或活化剂如三乙基铝的存在下，烯烃聚合。