Catalyst composition and methods for its preparation and use in a polymerization process
    37.
    发明授权
    Catalyst composition and methods for its preparation and use in a polymerization process 失效
    催化剂组合物及其在聚合过程中的制备和使用方法

    公开(公告)号:US06180735B2

    公开(公告)日:2001-01-30

    申请号:US09215432

    申请日:1998-12-17

    Abstract: The present invention relates to a catalyst composition and a method for making the catalyst composition of a polymerization catalyst and a carbonyl compound. The invention is also directed to the use of the catalyst composition in the polymerization of olefin(s). In particular, the polymerization catalyst system is supported on a carrier. More particularly, the polymerization catalyst comprises a bulky ligand metallocene-type catalyst system.

    Abstract translation: 本发明涉及催化剂组合物和制备聚合催化剂和羰基化合物的催化剂组合物的方法。 本发明还涉及催化剂组合物在烯烃聚合中的用途。 特别地,聚合催化剂体系被负载在载体上。 更具体地,聚合催化剂包含庞大配体金属茂型催化剂体系。

    Oxidation of terminal olefins to aldehydes
    38.
    发明授权
    Oxidation of terminal olefins to aldehydes 失效
    将终端烯醇氧化成醛酸酯

    公开(公告)号:US5136105A

    公开(公告)日:1992-08-04

    申请号:US676439

    申请日:1991-03-28

    CPC classification number: C07C45/68 C07C45/34 C07C45/35 C07C45/36 C07C67/29

    Abstract: A process for the oxidation of a compound having a terminal carbon-carbon double bond to produce the corresponding aldehyde is disclosed. In one embodiment, the process comprises contacting the compound with molecular oxygen in the presence of a Group VIII metal component initially substantially free of NO ligands and NO.sub.2 ligands in an amount effective to promote the oxidation of the compound, a reoxidation component in an amount effective to reoxidize a reduced Group VIII metal component to the Group VIII metal component and at least one alcohol selected from secondary alcohols, tertiary alcohols and mixture thereof in an amount effective to increase the aldehyde selectivity of the oxidation. The contacting occurs at conditions effective to oxidize the compound and the form the corresponding aldehyde.

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