Improved electron donor and catalyst system for monomer polymerization
    4.
    发明公开
    Improved electron donor and catalyst system for monomer polymerization 失效
    Verbesserte Electronen-Donor und Katalysatorsystemfürdie Polymerisation von Monomeren

    公开(公告)号:EP0860452A1

    公开(公告)日:1998-08-26

    申请号:EP98103104.0

    申请日:1998-02-23

    IPC分类号: C08F10/00 C08F4/646

    摘要: Provided is process of polymerizing monomer having at least one Ziegler-Natta polymerizable bond, comprising contacting monomer with, reacting monomer in presence of, or combinations thereof, catalyst system comprising:

    A) catalyst component consisting essentially of

    i) about 1.5 weight % to about 6 weight % titanium,
    ii) about 10 weight % to about 20 weight % magnesium,
    iii) about 40 weight % to about 70 weight % halogen,
    iv) about 5 weight % to about 25 weight % polycarboxylic ester selected from the group consisting of esters aliphatic, aromatic, alicyclic polycarboxylic acids, or combinations thereof or alkyl phthalates, and
    v) about 0.1 weight percent to about 2.5 weight % organic phosphorous compound selected from the group consisting of hydrocarbon esters of phosphoric acid such that each hydrocarbon group has one to about six carbon atoms;

    B) electron donor described by the formula:
    wherein R 1 is alkyl or cycloakylgroup containing at least one secondary or tertiary carbon atom, R 2 and R 3 are each independently alkyl or aryl group, and R 4 is an alkyl group having a primary carbon bonded to the silicon atom; and
    C) organic aluminum compound.

    摘要翻译: 提供了具有至少一种齐格勒 - 纳塔可聚合键的单体的聚合方法,其包括使单体与单体在其存在下或其组合下反应的催化剂体系接触,所述催化剂体系包含:A)基本上由i)约1.5重量%至约 6重量%的钛,ii)约10重量%至约20重量%的镁,iii)约40重量%至约70重量%的卤素,iv)约5重量%至约25重量%的多元羧酸酯, 酯脂族,芳族,脂环族多元羧酸或其组合或邻苯二甲酸烷基酯,以及v)约0.1重量%至约2.5重量%的有机磷化合物,其选自磷酸的烃酯,使得每个烃基具有1至 约6个碳原子; B)由下式表示的电子给体:其中R1是含有至少一个仲或叔碳原子的烷基或环烷基,R2和R3各自独立地是烷基或芳基,R4是具有伯碳键的烷基 硅原子; 和C)有机铝化合物。 CH

    A catalyst system to produce highly crystalline polypropylene
    7.
    发明公开
    A catalyst system to produce highly crystalline polypropylene 失效
    Katalysatorsystemfürdie Herstellung von hochkristallinen Polypropylen

    公开(公告)号:EP0752431A2

    公开(公告)日:1997-01-08

    申请号:EP96109106.3

    申请日:1996-06-07

    IPC分类号: C08F10/00 C08F4/646

    CPC分类号: C08F10/00 C08F4/6465

    摘要: The present invention provides a catalyst system that exhibits control of desired properties in the polymer product. The catalyst system includes a conventional supported Ziegler-Natta catalyst containing an organic phosphorus compound in combination with an electron donor having the general formula SiR m (OR') 4-m where R is selected from the group consisting of an alkyl group, a cycloalkyl group, an aryl group and a vinyl group; R' is an alkyl group; and m is 0-3, wherein when R is an alkyl group, R may be identical with R'; when m is 0, 1 or 2, the R' groups may be identical or different; and when m is 1, 2 or 3, the R groups may be identical or different. The system easily achieves efficiencies over 30 kg/g-cat·h. The system also exhibits good control over the xylene solubles of the polymer products and produces a highly crystalline polymer product. The electron donor is preferably described by the formula:
    wherein R 1 is an alkyl or cycloalkyl group containing a primary, secondary or tertiary carbon atom attached to the silicon atom; R 2 and R 3 are alkyl or aryl groups; and R 4 is an alkyl or cycloalkyl group with a secondary or tertiary carbon atom attached to the silicon atom. More preferably, R 1 and R 4 are both cycloalkyl groups and are both the same. Most preferably, R 1 and R 4 are both cyclopentyl groups and R 2 and R 3 are both methoxy groups. Specifically, the electron donor may be dicyclopentyldimethoxysilane.

    摘要翻译: 本发明提供一种催化剂体系,其表现出对聚合物产品中所需性能的控制。 催化剂体系包括常规的负载齐格勒 - 纳塔催化剂,其含有有机磷化合物与具有通式SiRm(OR')4-m的电子给体的组合,其中R选自烷基,环烷基 ,芳基和乙烯基; R'是烷基; 并且m为0-3,其中当R为烷基时,R可以与R'相同; 当m为0,1或2时,R'可以相同或不同; 当m为1,2或3时,R基团可以相同或不同。 该系统容易实现超过30 kg / g-cat.h的效率。 该系统还显示出对聚合物产物的二甲苯可溶物的良好控制,并产生高度结晶的聚合物产物。 电子给体优选用下式描述:其中R 1是含有与硅原子连接的伯,仲或叔碳原子的烷基或环烷基; R2和R3是烷基或芳基; 并且R 4是与硅原子连接的仲或叔碳原子的烷基或环烷基。 更优选地,R 1和R 4都是环烷基并且都是相同的。 最优选地,R 1和R 4都是环戊基,R 2和R 3都是甲氧基。 具体地,电子给体可以是二环戊基二甲氧基硅烷。

    A catalyst system to produce highly crystalline polypropylene
    9.
    发明公开
    A catalyst system to produce highly crystalline polypropylene 失效
    一种生产高结晶度聚丙烯的催化剂体系

    公开(公告)号:EP0752431A3

    公开(公告)日:1997-02-12

    申请号:EP96109106.3

    申请日:1996-06-07

    IPC分类号: C08F10/00 C08F4/646

    CPC分类号: C08F10/00 C08F4/6465

    摘要: The present invention provides a catalyst system that exhibits control of desired properties in the polymer product. The catalyst system includes a conventional supported Ziegler-Natta catalyst containing an organic phosphorus compound in combination with an electron donor having the general formula SiR m (OR') 4-m where R is selected from the group consisting of an alkyl group, a cycloalkyl group, an aryl group and a vinyl group; R' is an alkyl group; and m is 0-3, wherein when R is an alkyl group, R may be identical with R'; when m is 0, 1 or 2, the R' groups may be identical or different; and when m is 1, 2 or 3, the R groups may be identical or different. The system easily achieves efficiencies over 30 kg/g-cat·h. The system also exhibits good control over the xylene solubles of the polymer products and produces a highly crystalline polymer product. The electron donor is preferably described by the formula:
    wherein R 1 is an alkyl or cycloalkyl group containing a primary, secondary or tertiary carbon atom attached to the silicon atom; R 2 and R 3 are alkyl or aryl groups; and R 4 is an alkyl or cycloalkyl group with a secondary or tertiary carbon atom attached to the silicon atom. More preferably, R 1 and R 4 are both cycloalkyl groups and are both the same. Most preferably, R 1 and R 4 are both cyclopentyl groups and R 2 and R 3 are both methoxy groups. Specifically, the electron donor may be dicyclopentyldimethoxysilane.

    摘要翻译: 本发明提供了显示出对聚合物产品中所需性能的控制的催化剂体系。 该催化剂体系包括常规负载的齐格勒 - 纳塔催化剂,其含有有机磷化合物与具有通式SiR m(OR')4-m的电子给体的组合,其中R选自烷基,环烷基 ,芳基和乙烯基; R'是烷基; m为0-3,其中当R为烷基时,R可以与R'相同; 当m为0,1或2时,R'基团可以相同或不同; 当m为1,2或3时,R基团可以相同或不同。 该系统轻松实现超过30 kg / g-cat·h的效率。 该系统还显示出对聚合物产品的二甲苯可溶物的良好控制并产生高度结晶的聚合物产物。 电子给体优选由下式描述:其中R1是含有与硅原子连接的伯,仲或叔碳原子的烷基或环烷基; R2和R3是烷基或芳基; 并且R4是具有与硅原子连接的仲或叔碳原子的烷基或环烷基。 更优选地,R1和R4都是环烷基并且都是相同的。 最优选地,R1和R4都是环戊基,R2和R3都是甲氧基。 具体而言,电子给体可以是二环戊基二甲氧基硅烷。

    High impact polystyrene having improved gloss and impact characteristics
    10.
    发明公开
    High impact polystyrene having improved gloss and impact characteristics 失效
    SchlagzähesPolystyrol mit verb desserten Glanz- und Schlagfestigkeitseigenschaften。

    公开(公告)号:EP0620236A1

    公开(公告)日:1994-10-19

    申请号:EP94870067.9

    申请日:1994-04-15

    IPC分类号: C08F279/02 C08L51/04

    摘要: A composition and process for making it are disclosed which teach multimodal particle size high impact monovinylaromatic polymer material having good gloss properties as well as high impact strength. The bimodal particle size rubber component of the material utilizes a small amount of a very large particle size rubber and a large amount of a very small particle size rubber. The unique and advantageous method of manufacturing the material involves introducing pre-existing pellets of a rubber/polymer blend into a monomer solution also containing a rubber capable of producing particles of a different range of sizes than that of the rubber component in the pellets, and polymerizing the monomer/dissolved pellet mixture into a multimodal particle size high impact material.

    摘要翻译: 公开了一种用于制造它的组合物和方法,其中描述了具有良好光泽性能以及高冲击强度的多峰粒径高冲击单乙烯基芳族聚合物材料。 材料的双峰粒径橡胶组分使用少量非常大的粒度的橡胶和大量非常小的粒度的橡胶。 制造材料的独特和有利的方法包括将预先存在的橡胶/聚合物共混物的颗粒引入单体溶液中,该单体溶液还含有能够产生与颗粒中的橡胶组分的尺寸不同的尺寸的颗粒的橡胶,以及 将单体/溶解的颗粒混合物聚合成多峰粒径高的冲击材料。