CATALYTIC RING OPENING POLYMERIZATION OF LACTONES, CARBONATES, ETHERS, MORPHOLINE-2,5-DIONES AND ANHYDRIDES AND CATALYST THEREFOR
    8.
    发明申请
    CATALYTIC RING OPENING POLYMERIZATION OF LACTONES, CARBONATES, ETHERS, MORPHOLINE-2,5-DIONES AND ANHYDRIDES AND CATALYST THEREFOR 审中-公开
    催化环打开聚酯,碳酸酯,其他物质,吗啉-2,5-二酮及其衍生物及其催化剂

    公开(公告)号:WO1996019519A1

    公开(公告)日:1996-06-27

    申请号:PCT/NL1995000442

    申请日:1995-12-21

    Abstract: The invention relates to a method for the catalytic ring opening polymerization of lactones, carbonates, ethers, morpholine-2,5-diones and anhydrides comprising contacting these compounds under polymerizing conditions with at least one metal coordinating compound initiator and at least one co-initiator, wherein the co-initiator replaces at least one ligand of the metal coordinating compound by a replacement ligand, which is less sterically hindering, in order to form a catalytic unit, so that the active part of the catalytic unit formed in this way is capable of approaching easier the compound undergoing catalytic ring opening.

    Abstract translation: 本发明涉及内酯,碳酸酯,醚,吗啉-2,5-二酮和酸酐的催化开环聚合方法,包括在聚合条件下使这些化合物与至少一种金属配位化合物引发剂和至少一种共引发剂 其中共引发剂通过位阻较小的置换配体取代金属配位化合物的至少一种配体以形成催化单元,使得以这种方式形成的催化单元的活性部分能够 接近催化开环的化合物更容易接近。

    ARYLOXYALUMINOXANES
    9.
    发明申请
    ARYLOXYALUMINOXANES 审中-公开

    公开(公告)号:WO1994010180A1

    公开(公告)日:1994-05-11

    申请号:PCT/US1993010399

    申请日:1993-10-29

    Abstract: Aryloxyaluminoxanes containing the unit (I) where R is unsubstituted or substituted aryl, such as phenyl or naphthyl, are useful as cocatalysts in Ziegler-Natta and Kaminsky-type olefin polymerization catalysts. They can be formed by reaction of a source of water with an organoaluminum compound containing the desired aryloxy moiety or by reaction of preformed aluminoxane with an organic compound, such as a phenol, containing such a moiety.

    Abstract translation: 含有其中R为未取代或取代的芳基(如苯基或萘基)的单元(I)的芳基氧氟烷氧基在Ziegler-Natta和Kaminsky型烯烃聚合催化剂中可用作助催化剂。 它们可以通过水源与含有所需芳氧基部分的有机铝化合物的反应或通过预形成的铝氧烷与含有这种部分的有机化合物如苯酚的反应形成。

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