Catalysts and methods for polymerizing macrocyclic oligomers
    7.
    发明授权
    Catalysts and methods for polymerizing macrocyclic oligomers 失效
    用于聚合大环低聚物的催化剂和方法

    公开(公告)号:US07196160B2

    公开(公告)日:2007-03-27

    申请号:US11110051

    申请日:2005-04-20

    IPC分类号: C08G63/87 C08G63/00

    摘要: Cyclic oligomers containing ester linkages are polymerized in the presence of a catalyst having at least one oxygen atom bonded to two metal atoms. At least one of the metal atoms is a tin atom, which is preferably tetravalent, i.e., bonded to three other groups in addition to the oxygen atom. The other metal atom may also be another tin atom, which is again preferably tetravalent, or a zinc, aluminum or titanium atom. The catalyst may contain multiple oxygen atoms that are bonded to two such metal atoms as described. These catalysts are active, efficient polymerization catalysts. They are often liquids at polymerization temperatures. The catalysts can be formed in situ in the polymerization process, which provides additional flexibility in the process and increased storage stability of starting materials.

    摘要翻译: 含有酯键的环状低聚物在具有键合至两个金属原子的至少一个氧原子的催化剂存在下聚合。 至少一个金属原子是锡原子,其优选是四价的,即除了氧原子之外还与三个其它基团键合。 另一个金属原子也可以是另一个锡原子,其又优选为四价,或者是锌,铝或钛原子。 催化剂可以含有多个氧原子,其与所述的两个这样的金属原子键合。 这些催化剂是活性的,有效的聚合催化剂。 它们在聚合温度下通常是液体。 催化剂可以在聚合过程中原位形成,这在工艺中提供了额外的灵活性并提高了原料的储存稳定性。

    Alpha-Olefin based branched polymer
    8.
    发明授权
    Alpha-Olefin based branched polymer 有权
    基于α-烯烃的支化聚合物

    公开(公告)号:US07193024B2

    公开(公告)日:2007-03-20

    申请号:US10481064

    申请日:2002-06-13

    摘要: A polymer comprising units (1) derived from an alpha-olefin having at least 3 carbon atoms (1′), units (2) derived from divinylbenzene or C1-10hydrocarbyl substituted derivatives thereof (2′), and units (3) derived from ethylene (3′), the polymer comprising at least 75 mole % of units (1), from 0.01 to 5 mole % of units (2), and up to 20 mole % of units (3), the polymer having a branching factor BF 0.75. A process for preparing a polymer comprising units (1) derived from an alpha-olefin having at least 3 carbon atoms (1′), units (2) derived from divinylbenzene or C1-10hydrocarbyl substituted derivatives thereof (2′), and units (3) derived from ethylene (3′), by contacting the alpha-olefin (1′), the divinylbenzene compound (2′), and ethylene (3′) in the presence of a polymerisation catalyst under polymerisation conditions wherein the mole ratio of alpha-olefin (1′) to divinylbenzene or C1-10hydrocarbyl substituted derivatives thereof (2′) is at least 10:1, the mole ratio of divinylbenzene or C1-10hydrocarbyl substituted derivatives thereof (2′) to ethylene (3′) is in the range of from 1:0.1 to 1:2000, and the mole ratio of (1′) to (3′) is at least 4:1.

    摘要翻译: 包含衍生自具有至少3个碳原子的α-烯烃(1')的单元(1)的聚合物,衍生自二乙烯基苯的单元(2)或其衍生自C 1〜10-20烃基取代的衍生物(2' )和衍生自乙烯(3')的单元(3),所述聚合物包含至少75摩尔%的单元(1),0.01至5摩尔%的单元(2)和至多20摩尔%的单元 3),聚合物具有分支因子BF 0.75。 一种制备聚合物的方法,所述聚合物包含衍生自具有至少3个碳原子(1')的α-烯烃的单元(1),衍生自二乙烯基苯或C 1-10烃基取代衍生物的单元(2) (2')和由乙烯(3')衍生的单元(3),通过在聚合反应的存在下使α-烯烃(1'),二乙烯基苯化合物(2')和乙烯(3')接触 催化剂在聚合条件下,其中α-烯烃(1')与二乙烯基苯或其C 1-10烃基取代的衍生物(2')的摩尔比为至少10:1,二乙烯基苯 或其C 1〜10-20烃基取代的衍生物(2')与乙烯(3')的摩尔比为1:0.1至1:2000,并且(1')与 (3')至少为4:1。