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。

    Catalyst systems of the Ziegler-Natta type
    4.
    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:US06200922B1

    公开(公告)日:2001-03-13

    申请号:US08869761

    申请日:1997-06-05

    IPC分类号: B01J2106

    摘要: The catalyst systems comprise as active constituents a) a titanium-containing solid component comprising a compound of titanium, a compound of magnesium, a halogen, an inorganic oxide as support and a carboxylic ester as electron donor compound, and also, as cocatalyst, b) an aluminum compound and c) optionally a further electron donor compound, wherein the inorganic oxide used has a pH of from 1 to 6, an average particle diameter of from 5 to 200 &mgr;m, an average primary particle diameter of from 1 to 20 &mgr;M and voids or channels having an average diameter of from 0.1 to 20 &mgr;m and a macroscopic share of the volume of the overall particle within the range from 5 to 30%.

    摘要翻译: 催化剂体系包括作为活性成分的含钛固体组分,其包含钛化合物,镁化合物,卤素,作为载体的无机氧化物和作为电子给体化合物的羧酸酯的化合物,以及作为助催化剂的b) 铝化合物和任选的另外的电子给体化合物,其中使用的无机氧化物的pH为1至6,平均粒径为5至200μm,平均一次粒径为1至20μm,空隙 或平均直径为0.1-20μm的通道,并且整个颗粒的体积的宏观份额在5至30%的范围内。

    ANTICORROSION PIGMENTS WITH POSITIVE ZETA POTENTIAL
    6.
    发明申请
    ANTICORROSION PIGMENTS WITH POSITIVE ZETA POTENTIAL 审中-公开
    具有积极的ZETA潜力的抗腐蚀颜料

    公开(公告)号:US20110151266A1

    公开(公告)日:2011-06-23

    申请号:US12958795

    申请日:2010-12-02

    摘要: The present invention relates to the use of oxidic nanoparticles having an average particle size of 2 to 2000 nm in combination with at least one polycationic polymer as corrosion protection for metallic surfaces and also to a method of protecting metallic surfaces from corrosion, comprising the steps of: i) providing a formulation comprising oxidic nanoparticles (a) and at least one polycationic polymer (b) and an application medium, ii) applying the formulation to the metallic surface that is to be protected, and iii) optionally drying and/or heat-treating the surface.

    摘要翻译: 本发明涉及平均粒度为2〜2000nm的氧化纳米粒子与至少一种聚阳离子聚合物的组合作为金属表面的防腐蚀用途,以及保护金属表面免受腐蚀的方法,包括以下步骤: :i)提供包含氧化性纳米颗粒(a)和至少一种聚阳离子聚合物(b)和施用介质的制剂,ii)将制剂施用于待保护的金属表面,和iii)任选地干燥和/或加热 去表面。

    Catalyst systems of the ziegler-natta type and a process for preparing them
    8.
    发明授权
    Catalyst systems of the ziegler-natta type and a process for preparing them 失效
    齐格勒 - 纳塔型催化剂系统及其制备方法

    公开(公告)号:US06730753B2

    公开(公告)日:2004-05-04

    申请号:US09940368

    申请日:2001-08-28

    IPC分类号: C08F464

    摘要: Catalyst systems of the Ziegler-Natta type, which are suitable for the polymerization of olefins are prepared by: A) bringing an inorganic metal oxide on which a magnesium compound has been deposited into contact with a tetravalent titanium compound, B) if desired, bringing the intermediate obtained in this way into contact with an electron donor compound and C) bringing the intermediate obtained in step A) or B) into contact with a polysiloxane.

    摘要翻译: 适用于烯烃聚合的齐格勒 - 纳塔型催化剂体系是通过以下步骤制备的:A)使其上沉积有镁化合物的无机金属氧化物与四价钛化合物接触,B)如果需要,将 以这种方式获得的中间体与电子给体化合物接触,和C)将步骤A)中得到的中间体或B)与聚硅氧烷接触。