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    Olefin polymerization process employing metallocene catalyst provided by cocatalyst activation of a metallocene procatalyst
    1.
    发明授权
    Olefin polymerization process employing metallocene catalyst provided by cocatalyst activation of a metallocene procatalyst 有权
    使用茂金属催化剂的烯烃聚合方法，其通过助催化剂活化茂金属前催化剂而提供

    公开(公告)号：US06225427B1

    公开(公告)日：2001-05-01

    申请号：US09173396

    申请日：1998-10-15

    Applicant: Willie C. Burton ,  Xu Wu Feng ,  Daniel Gillis

    Inventor： Willie C. Burton ,  Xu Wu Feng ,  Daniel Gillis

    IPC: C08F4646

    CPC classification number: C08F10/00 ,  C08F4/65908 ,  C08F4/65916 ,  C08F4/6592 ,  C08F4/65922 ,  C08F210/16 ,  C08F210/18 ,  C08F4/65912 ,  C08F210/06 ,  C08F2500/03

    Abstract: A polyolefin elastomer possessing a unique combination of properties, i.e., high molecular weight (Mw), high Mooney viscosity (ML1+4 at 125° C.), low polydispersity index (Mw/Mn) and low glass transition temperature (Tg), is obtained by a polymerization process employing a particular type of a metallocene catalyst. The polyolefin elastomer is useful for manufacturing a variety of products including rubber articles such as hoses, belts and moldings, polymer blends containing one or more other hydrocarbon polymers and lubricating oils in which the elastomer functions as a viscosity modifier. Also disclosed is a cocatalyst for activating the metallocene procatalyst employing a specific molar ratio of the components of the cocatalyst to the transition metal of the procatalyst.

    Abstract translation: 聚烯烃弹性体具有独特的性能组合，即高分子量（Mw），高门尼粘度（125℃时ML1 + 4），低多分散指数（Mw / Mn）和低玻璃化转变温度（Tg））， 是通过使用特定类型的茂金属催化剂的聚合方法获得的。 聚烯烃弹性体可用于制造各种产品，包括诸如软管，带和模制品的橡胶制品，含有一种或多种其它烃聚合物的聚合物共混物和其中弹性体用作粘度改性剂的润滑油。 还公开了使用助催化剂组分与前催化剂的过渡金属的特定摩尔比活化茂金属前催化剂的助催化剂。

    Polymerization catalyst promoter
    2.
    发明授权
    Polymerization catalyst promoter 失效
    聚合催化剂促进剂

    公开(公告)号：US5786504A

    公开(公告)日：1998-07-28

    申请号：US649736

    申请日：1996-05-15

    Applicant: Walter Nudenberg ,  Catherine Ann McGeary ,  Xu Wu Feng ,  Francis Xavier O'Shea

    Inventor： Walter Nudenberg ,  Catherine Ann McGeary ,  Xu Wu Feng ,  Francis Xavier O'Shea

    IPC: C07C69/65 ,  C08F4/68 ,  C08F10/00 ,  C08F10/02 ,  C08F210/16 ,  C08F210/18 ,  C07C69/62 ,  C07C327/00

    CPC classification number: C07C69/65 ,  C08F210/16 ,  C08F210/18

    Abstract: Compounds of the formula: ##STR1## wherein n is 1, 2, 3, or 4; X.sup.1 and X.sup.2 are each, independently, chlorine or bromine; A is O or S; R.sup.1 is hydrogen or C.sub.1 -C.sub.16 alkyl; R.sup.2 is C.sub.1 -C.sub.16 alkyl, C.sub.6 -C.sub.16 aryl, C.sub.1 -C.sub.4 alkylidene, or CH.sub.2 OR.sup.5 ; R.sup.3 is hydrogen, chlorine, bromine, or OR.sup.6 ; R.sup.4 is C.sub.1 -C.sub.16 alkyl, C.sub.7 -C.sub.16 aralkyl, C.sub.2 -C.sub.16 alkenyl, or C.sub.6 -C.sub.18 aryl; R.sup.5 is hydrogen, C.sub.1 -C.sub.16 alkyl, C.sub.7 -C.sub.16 aralkyl, C.sub.2 -C.sub.16 alkenyl, or C.sub.6 -C.sub.18 aryl; and R.sup.6 is hydrogen or C.sub.1 -C.sub.16 alkyl. These compounds by themselves and in combination with certain halo-but-2-enoic acids and esters are useful as catalyst promoters in ethylene polymerization processes.

    Abstract translation: 下式的化合物：其中n为1,2,3或4; X1和X2各自独立地为氯或溴; A是O或S; R1是氢或C1-C16烷基; R2是C1-C16烷基，C6-C16芳基，C1-C4亚烷基或CH2OR5; R3是氢，氯，溴或OR6; R4是C1-C16烷基，C7-C16芳烷基，C2-C16烯基或C6-C18芳基; R5是氢，C1-C16烷基，C7-C16芳烷基，C2-C16烯基或C6-C18芳基; 并且R 6是氢或C 1 -C 16烷基。 这些化合物本身并与某些卤代丁-2-烯酸和酯组合可用作乙烯聚合方法中的催化剂促进剂。

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