Propylene block copolymer and propylene resin composition
    1.
    发明授权
    Propylene block copolymer and propylene resin composition 有权
    丙烯嵌段共聚物和丙烯树脂组合物

    公开(公告)号:US06825280B1

    公开(公告)日:2004-11-30

    申请号:US09485189

    申请日:2000-02-07

    IPC分类号: C08L2310

    摘要: Disclosed are a propylene polymer composition possessing excellent balance among rigidity and low warpage, resistance to deterioration caused by thermal oxidation during processing, weathering resistance, antistatic properties, and low bleeding properties, and a propylene resin composition which can easily produce molded products having excellent balance between rigidity and impact resistance (particularly low-temperature impact resistance) or heat resistance. The propylene polymer composition and the propylene resin composition comprise a propylene block copolymer consisting essentially of the following blocks (a) and (b) and having a melt flow rate of 0.1 to 200 g/10 min: block (a): a polymer block of a homopolymer of propylene or a random copolymer of propylene with a comonomer selected from the group consisting of ethylene and C4-C20 &agr;-olefins, the content of the comonomer being not more than 10% by mole; and block (b): a polymer block of a random copolymer of propylene with at least one comonomer selected from the group consisting of ethylene and C4-C20 &agr;-olefins, the content of the comonomer being 10 to 80% by mole, the average chain length of the comonomer block and the gross average chain length of the comonomer having a relationship represented by formula (I) nb≦n+1.5  (I) wherein nb represents the average chain length of the comonomer block; and n represents the gross average chain length of the comonomer.

    摘要翻译: 公开了在刚性和低翘曲之间具有优异的平衡性,耐加工中的热氧化,耐候性,抗静电性和低渗透性的耐劣化性的丙烯聚合物组合物,以及可以容易地制备具有优异平衡性的模塑产品的丙烯树脂组合物 刚性和抗冲击性(特别是低温耐冲击性)或耐热性。 丙烯聚合物组合物和丙烯树脂组合物包含基本上由以下嵌段(a)和(b)组成并且熔体流动速率为0.1至200g / 10min的丙烯嵌段共聚物:嵌段(a):聚合物嵌段 的丙烯均聚物或丙烯与选自乙烯和C 4 -C 20α-烯烃的共聚单体的无规共聚物,共聚单体的含量不超过10摩尔% 和嵌段(b):丙烯与至少一种选自乙烯和C 4 -C 20α-烯烃的共聚单体的无规共聚物的聚合物嵌段,共聚单体的含量为10〜80摩尔%,平均链 共聚单体嵌段的长度和由式(I)表示的关系的共聚单体的总平均链长,其中nb表示共聚单体嵌段的平均链长; n表示共聚单体的总平均链长。

    Propylene block copolymer and resin composition
    2.
    发明授权
    Propylene block copolymer and resin composition 有权
    丙烯嵌段共聚物和树脂组合物

    公开(公告)号:US06469100B2

    公开(公告)日:2002-10-22

    申请号:US09325384

    申请日:1999-06-04

    IPC分类号: C08L5300

    摘要: A block copolymer is provided comprising one or more blocks of a propylene polymer (PP) and one or more blocks of an ethylene-propylene copolymer (EPR) having the properties: (1) the interface thickness of the PP block with EPR block is from 20-1000 nm; (2) the weight average molecular weight of the PP block is 10,000-1,000,000; (3) the proportion of mesopentad chain in the PP block is not less than 95%; (4) the particle diameter of the disperse phase in EPR block is 0.2-3 microns; (5) the weight average molecular weight of the EPR block is 50,000-1000,000; (6) the propylene content in the EPR block is 20-80 mole %; (7) the composition fluctuation in molecular weight in EPR block is within +/−5% from the average composition.

    摘要翻译: 提供一种包含一个或多个丙烯聚合物(PP)嵌段和一个或多个乙烯 - 丙烯共聚物嵌段(EPR)的嵌段共聚物,其具有以下性质:(1)PP嵌段与EPR嵌段的界面厚度为 20-1000nm;(2)PP块的重均分子量为10,000-1,000,000;(3)PP嵌段中的美链的比例不低于95%;(4)分散体的粒径 EPR嵌段的相为0.2-3微米;(5)EPR嵌段的重均分子量为50,000-1000,000;(6)EPR嵌段中的丙烯含量为20-80摩尔%;(7) EPR块中分子量的组成波动在平均组成的+/- 5%以内。

    Process for producing propylene block copolymers
    3.
    发明授权
    Process for producing propylene block copolymers 失效
    制备丙烯嵌段共聚物的方法

    公开(公告)号:US5623022A

    公开(公告)日:1997-04-22

    申请号:US502141

    申请日:1995-07-13

    摘要: A propylene block copolymer having a high impact resistance is prepared without the generation of finely divided particles or the adhesion to the reactor, which propylene block copolymer having a weight ratio of 5/95-70/30 (process (1)/process (2)) is obtained by carrying out the particular polymerization processes (1) and (2) in this sequence under the action of the catalyst comprising the following A and B.A: particular transition metal compound.B: an alumoxane, the reaction product of an alkylboronic acid with an organoAl, a Lewis acid or ionic compound.Process (1): process for copolymerizing propylene and a specified comonomer in a ratio of 0/100-80/20.Process (2): process for producing a propylene polymer having a specified comonomer in an amount of 10% by weight or less.

    摘要翻译: 制备具有高耐冲击性的丙烯嵌段共聚物,而不产生细碎颗粒或与反应器的粘附性,该丙烯嵌段共聚物的重量比为5 / 95-70 / 30(工艺(1)/工艺(2) ))是通过在包含以下A和B的催化剂的作用下以该顺序进行特定的聚合方法(1)和(2)得到的。A:特定的过渡金属化合物。 B:铝氧烷,烷基硼酸与有机铝的反应产物,路易斯酸或离子化合物。 方法(1):以0 / 100-80 / 20的比例共聚丙烯和特定共聚单体的方法。 方法(2):制备具有10重量%以下的特定共聚单体的丙烯聚合物的方法。

    Catalyst component for olefin polymerization, catalyst for alpha-olefin polymerization and process for the production of alpha-olefin polymer
    8.
    发明申请
    Catalyst component for olefin polymerization, catalyst for alpha-olefin polymerization and process for the production of alpha-olefin polymer 有权
    用于烯烃聚合的催化剂组分,用于α-烯烃聚合的催化剂和用于生产α-烯烃聚合物的方法

    公开(公告)号:US20050070426A1

    公开(公告)日:2005-03-31

    申请号:US10940769

    申请日:2004-09-15

    摘要: To develop a catalyst component for olefin polymerization, a metallocene catalyst for olefin polymerization and a process for the production of an olefin polymer capable of producing an olefin polymer having a high molecular weight and a high melting point which can be extruded or injection-molded in a high yield and a novel transition metal compound to be used in these catalyst components a catalyst component for olefin polymerization is made of a transition metal compound represented by formula (I) defined in the specification; a metallocene catalyst for olefin polymerization comprises the catalyst component for olefin polymerization; and a process for the production of an olefin polymer is performed in the presence of the metallocene catalyst for olefin polymerization:

    摘要翻译: 为了开发用于烯烃聚合的催化剂组分,用于烯烃聚合的茂金属催化剂和用于生产能够生产具有高分子量和高熔点的烯烃聚合物的烯烃聚合物的方法,其可被挤出或注射成型 在这些催化剂组分中使用的高产率和新型过渡金属化合物,用于烯烃聚合的催化剂组分由本说明书中定义的式(I)表示的过渡金属化合物制成; 用于烯烃聚合的茂金属催化剂包括用于烯烃聚合的催化剂组分; 并且在用于烯烃聚合的茂金属催化剂存在下进行烯烃聚合物的制备方法: