Highly crystalline propylene homopolymers
    1.
    发明授权
    Highly crystalline propylene homopolymers 失效
    高度结晶的丙烯均聚物

    公开(公告)号:US07022795B1

    公开(公告)日:2006-04-04

    申请号:US09041698

    申请日:1998-03-13

    摘要: Propylene homopolymers, wherein, in their separation according to tacticity by first dissolving the polymers in boiling xylene, then cooling the solution to 25° C. at a cooling rate of 10° C./h and then, with ascending temperature, separating the propylene homopolymers into fractions of different tacticity, either one or more of the conditions that i) the fraction of propylene homopolymers which remains undissolved on heating the cooled propylene homopolymer solution to 112° C. is greater than 20% by weight or ii) the fraction of propylene homopolymers which remains undissolved on heating the cooled propylene homopolymer solution to 117° C. is greater than 8% by weight or iii) the fraction of propylene homopolymers which remains undissolved on heating the cooled propylene homopolymer solution to 122° C. is greater than 1% by weight, are satisfied.

    摘要翻译: 丙烯均聚物,其中通过首先将聚合物溶解在沸腾的二甲苯中,根据立构规整度的分离,然后以10℃/小时的冷却速率将溶液冷却至25℃,然后在升高温度下分离丙烯 将均聚物分成不同立构规整度的一个或多个条件,i)在将冷却的丙烯均聚物溶液加热至112℃时保持未溶解的丙烯均聚物的分数大于20重量%或ii) 在将冷却的丙烯均聚物溶液加热至117℃时保持未溶解的丙烯均聚物大于8重量%或iii)在将冷却的丙烯均聚物溶液加热至122℃时保持未溶解的丙烯均聚物的分数大于 1重量%。

    Propylene polymers
    2.
    发明授权
    Propylene polymers 失效
    丙烯聚合物

    公开(公告)号:US06495634B2

    公开(公告)日:2002-12-17

    申请号:US09097865

    申请日:1998-06-16

    IPC分类号: C08L2312

    摘要: Propylene polymers containing a matrix of a propylene homopolymer and a copolymer of propylene and other alkenes, wherein, during the separation of the propylene polymers according to tacticity and comonomer distribution of the polymer chains, by first dissolving the propylene polymers in boiling xylene, then cooling the solution at a cooling rate of 10° C./h to 25° C. and thereafter, increasing the temperature, separating the propylene polymers into fractions of different solubility, either one or more of the conditions that i) more than 20% by weight of the matrix remain undissolved on further heating to 112° C. or ii) more than 8% by weight of the matrix remain undissolved on further heating to 117° C. or iii) more than 1% by weight of the matrix remain undissolved on further heating to 122° C. are fulfilled by the matrix which remains undissolved on heating the cooled propylene polymer solution to 80° C., a process for the preparation of the propylene polymers, their use for the production of films, fibers or moldings and the films, fibers or moldings comprising these propylene polymers, are described.

    摘要翻译: 含有丙烯均聚物基质和丙烯与其它烯烃共聚物的丙烯聚合物,其中在根据聚合物链的立构规整度和共聚单体分布分离丙烯聚合物期间,首先将丙烯聚合物溶解在沸腾的二甲苯中,然后冷却 该溶液以10℃/ h至25℃的冷却速率,然后升高温度,将丙烯聚合物分离成不同溶解度的分数,其中的一种或多种条件为:超过20重量% 的基质在进一步加热至112°C时仍未溶解。或)在基于进一步加热至117℃时,基质重量不得超过8%。或者,更多加热时,大于1重量%的基质仍然不溶解 至122℃,通过在将冷却的丙烯聚合物溶液加热至80℃时仍未溶解的基质来实现,制备丙烯聚合物的方法,其用于p 描述了膜,纤维或模制品的引导以及包含这些丙烯聚合物的膜,纤维或模制品。

    Catalyst systems of the Ziegler-Natta type
    3.
    发明授权
    Catalyst systems of the Ziegler-Natta type 失效
    齐格勒 - 纳塔型催化剂系统

    公开(公告)号:US06524995B2

    公开(公告)日:2003-02-25

    申请号:US09750715

    申请日:2001-01-02

    IPC分类号: B01J2302

    摘要: Catalyst systems of the Ziegler-Natta type comprise as active constituents a) a solid component comprising a compound of titanium or vanadium, a compound of magnesium, a particulate inorganic oxide as support and an internal electron donor compound, and as cocatalyst b) an aluminum compound and c) if desired, a further, external electron donor compound, wherein the particulate, inorganic oxide used has a specific surface area of from 350 to 1000 m2/g and a mean particle diameter {overscore (D)} in the range from 5 to 60 &mgr;m and comprises particles which are composed of primary particles having a mean particle diameter {overscore (d)} in the range from 1 to 10 &mgr;m and contain voids or channels between the primary particles, where the macroscopic proportion of voids or channels having a diameter of greater than 1 &mgr;m in the particles of the inorganic oxides is in the range from 5 to 30% by volume and the molar ratio of the compound of magnesium to the particulate, inorganic oxide is from 0.5:1 to 2.0:1.

    摘要翻译: 齐格勒 - 纳塔型的催化剂体系包括作为活性成分的a)包含钛或钒的化合物的固体组分,镁的化合物,作为载体的颗粒状无机氧化物和内部电子给体化合物,以及作为助催化剂)铝化合物和 ),其中所用的颗粒状无机氧化物的比表面积为350〜1000m2 / g,平均粒径(超芯(D在5〜60μm的范围内)和 包含由平均粒径(超芯(d在1-10μm范围内)并且在初级颗粒之间含有空隙或通道的初级颗粒组成的颗粒,其中空隙或通道的宏观比例具有大于1的直径 无机氧化物颗粒中的母体在5至30体积%的范围内,镁与颗粒的无机氧化物的摩尔比为0.5:1至 2.0:1。

    Random propylene copolymers
    10.
    发明授权
    Random propylene copolymers 有权
    无规丙烯共聚物

    公开(公告)号:US07026421B2

    公开(公告)日:2006-04-11

    申请号:US10971079

    申请日:2004-10-25

    IPC分类号: C08F210/06 C08F210/08

    摘要: Random copolymers of propylene with other 1-alkenes having up to carbon atoms, whose content of comonomers is in the range from 0.7 to 1.4% by weight if the only comonomer present in the propylene copolymers is ethylene, or whose content of comonomers is in the range from 0.7 to 3.0% by weight if at least one C4–C10-1-alkene is present as comonomer, and whose cold-xylene-soluble fraction is from 1.0 to 2.5% by weight if ethylene is present as a comonomer in the propylene copolymers, or whose cold-xylene-soluble fraction is from 0.75 to 2.0% by weight if the only comonomers present are C4–C10-1-alkenes, and a process for preparing the random copolymers of propylene is described, as is their use for producing films, fibers or moldings, and also the films, fibers and moldings themselves and biaxially stretched films made from random propylene copolymers of this type and processes for their production.

    摘要翻译: 丙烯与具有至多碳原子的其它1-烯烃的无规共聚物,如果丙烯共聚物中存在的共聚单体中唯一的共聚单体为共聚单体,其共聚单体的含量为0.7-1.4重量%,或其共聚单体的含量为 如果至少一个C 4 -C 10 - 1-烯烃作为共聚单体存在,其冷二甲苯可溶成分为 如果乙烯作为丙烯共聚物中的共聚单体存在,则其重量为1.0至2.5重量%,或者如果仅存在共聚单体为C 4 - 4,则冷二甲苯可溶成分为0.75-2.0重量% 描述了用于制备膜,纤维或模制品的方法,以及薄膜,纤维和模制品本身以及双轴的方法制备丙烯的无规共聚物的方法。 由这种类型的无规丙烯共聚物制成的拉伸薄膜及其生产方法。