Coated Pipe and Propylene Polymer Composition Therefor
    3.
    发明申请
    Coated Pipe and Propylene Polymer Composition Therefor 有权
    涂布管和丙烯聚合物组合物

    公开(公告)号:US20110003105A1

    公开(公告)日:2011-01-06

    申请号:US12919779

    申请日:2009-01-27

    IPC分类号: B32B1/08

    摘要: The invention relates to a coated pipe comprising a core, an adhesion layer coated on the core and an outer coating layer coated on the adhesion layer, wherein at least the adhesion layer comprises a propylene polymer composition comprising: (A) a propylene homo- or copolymer, and (B) an elastomeric component and to the use of such a propylene polymer composition for coating a pipe.

    摘要翻译: 本发明涉及一种涂覆管,其包括芯,涂覆在芯上的粘合层和涂覆在粘合层上的外涂层,其中至少粘附层包含丙烯聚合物组合物,其包含:(A)丙烯均聚物或 共聚物,和(B)弹性体组分,以及使用这种丙烯聚合物组合物涂覆管道。

    Process for preparing polypropylene alloys
    7.
    发明授权
    Process for preparing polypropylene alloys 有权
    制备聚丙烯合金的方法

    公开(公告)号:US06469110B1

    公开(公告)日:2002-10-22

    申请号:US09446333

    申请日:2000-02-14

    IPC分类号: C08F214

    摘要: Described herein is a process and an apparatus for polymerizing propylene. The process comprises carrying out the polymerization in at least one slurry reactor and at least one gas phase reactor without recycling unreacted monomers to the slurry reactor. A polymerization product containing unreacted monomers is recovered from the slurry reactor and volatile components are separated from the product in a separation unit. The polymerization product is recovered from the separation unit and conducted to a first gas phase reactor; and at least a part of the volatile components a recovered from the separation unit and conducted them to a gas phase reactor. At least 10% of the polymer product is produced in the gas phase reactor(s). The invention provides propylene homopolymers and alloys of propylene homopolymers and copolymers having good impact and creep properties.

    摘要翻译: 本文描述了用于聚合丙烯的方法和设备。 该方法包括在至少一个浆料反应器和至少一个气相反应器中进行聚合,而不将未反应的单体再循环到浆料反应器中。 从浆料反应器回收含有未反应单体的聚合产物,并在分离单元中将挥发性组分与产物分离。 从分离单元回​​收聚合产物,并将其导入第一气相反应器; 以及从分离单元回​​收的至少一部分挥发性成分a,并将其导入气相反应器。 在气相反应器中产生至少10%的聚合物产物。 本发明提供丙烯均聚物和具有良好冲击和蠕变性能的丙烯均聚物和共聚物的合金。

    Process for the production of propylene terpolymers
    9.
    发明授权
    Process for the production of propylene terpolymers 有权
    制备丙烯三元共聚物的方法

    公开(公告)号:US06365682B1

    公开(公告)日:2002-04-02

    申请号:US09446503

    申请日:2000-02-22

    IPC分类号: C08F234

    摘要: A process for producing terpolymers of propylene, comprising a) feeding into a slurry reactor a reaction mixture containing 50-85 w-% of propylene, 1-10 w-% of ethylene, 15-40 w-% of another C4-C8 alpha-olefin, a catalyst system maintaining olefin polymerization at said temperature conditions, and optionally hydrogen, b) polymerizing said reaction mixture at a temperature of lower than 70° C. a sufficient time to obtain a propylene terpolymer amounting to 50-99 w-% of the end product, c) transferring said reaction mixture into a gas phase reactor operating at a pressure of higher than 5 bars, preferably higher than 10 bars, optionally adding 0-30 w-% of ethylene, 0-10 w-% of another C4-C8 alpha-olefin, 0-40 w-% of propylene and optionally hydrogen, and d) continuing polymerization in said gas phase reactor for obtaining a propylene terpolymer amounting to 1-50 wt-% of the end product. The terpolymer has a melting temperature a less than 135° C., preferably less than 132° C., and it can be used for manufacturing films having good sealing properties.

    摘要翻译: 一种生产丙烯三元共聚物的方法,包括:a)向淤浆反应器中加入含有50-85%(重量)丙烯,1-10%乙烯,15-40%(重量)另一种C 4 -C 8α- 烯烃,在所述温度条件下保持烯烃聚合的催化剂体系,以及任选的氢气,b)在低于70℃的温度下将所述反应混合物聚合足够的时间以获得总共为50-99w-%的丙烯三元共聚物 的最终产物,c)将所述反应混合物转移到在高于5巴,优选高于10巴的压力下操作的气相反应器,任选地加入0-30重量%的乙烯,0-10重量%的乙烯, 另外的C 4 -C 8α-烯烃,0-40%(重量)的丙烯和任选的氢,和d)在所述气相反应器中连续聚合,得到总共1-50%(重量)最终产物的丙烯三元共聚物。 三元共聚物的熔融温度小于135℃,优选小于132℃,可用于制造具有良好密封性能的膜。