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    • 2. 发明申请
    • RESIN COMPOSITION FOR PRODUCTION OF HIGH TENACITY SLIT FILM, MONOFILAMENTS AND FIBERS
    • 用于生产高温胶片,单色和纤维的树脂组合物
    • WO2008060868A1
    • 2008-05-22
    • PCT/US2007/083410
    • 2007-11-02
    • FINA TECHNOLOGY, INC.ASHBAUGH, JohnLI, FrankSUN, Likuo
    • ASHBAUGH, JohnLI, FrankSUN, Likuo
    • D02G3/00
    • D01F6/46C08L23/04C08L23/06C08L23/10C08L23/142C08L2203/12D01D5/42C08L2666/06
    • A polymer blend comprising polypropylene and polyethylene, wherein an article formed from the polymer blend has a tenacity of from greater than 6.5g/9000m. A method of preparing a polymer blend comprising blending a high crystallinity polypropylene and a high density polyethylene, wherein polyethylene is present in an amount of from 1 wt% to 30 wt% based on the total weight of the polymer blend, and extruding the polymer blend, wherein the extruded polymer blend has a tenacity greater than 6.5g/9000m. A method of preparing a polymer blend comprising preparing a polymer blend comprising a polypropylene homopolymer and a high density polyethylene, wherein the polypropylene homopolymer has a melting point of from 155°C to 170°C, and forming the polymer blend into a monofilament having a tenacity greater than 6.5g/9000m and a draw ratio of from 4:1 to 20: 1.
    • 包含聚丙烯和聚乙烯的聚合物共混物,其中由聚合物共混物形成的制品具有大于6.5g /9000μm的强度。 一种制备聚合物共混物的方法,包括混合高结晶度聚丙烯和高密度聚乙烯,其中基于聚合物共混物的总重量,聚乙烯的存在量为1重量%至30重量%,并且挤出聚合物共混物 ,其中挤出的聚合物共混物的韧度大于6.5g / 9000m。 一种制备聚合物共混物的方法,包括制备包含聚丙烯均聚物和高密度聚乙烯的聚合物共混物,其中聚丙烯均聚物的熔点为155℃至170℃,并将聚合物共混物形成为具有 强度大于6.5g / 9000m,拉伸比为4:1至20:1。
    • 6. 发明申请
    • INJECTION MOLDING PROCESS
    • 注塑成型工艺
    • WO2008070720A2
    • 2008-06-12
    • PCT/US2007086505
    • 2007-12-05
    • FINA TECHNOLOGYLI FRANK
    • LI FRANK
    • B29C45/72
    • B29C45/0001B29C47/822B29K2023/12C08K5/0083C08K5/098C08K5/527C08L23/142
    • A process for the preparation of a molded article formed of an isotactic ethylene propylene copolymer comprising providing an isotactic ethylene-propylene copolymer having an ethylene content of no more than (5) weight percent produced by the copolymerization of ethylene and propylene in the presence of an isospecific metallocene catalyst; heating the copolymer to a molten state; incorporating a nucleating agent into copolymer in an amount effective to provide a uniform shrinkage of the molded article at 48 hours molding of the at least 85% as determined by the differential in transverse and longitudinal shrinkage at the 48 hour mark; extruding the molten copolymer into a mold cavity; cooling the copolymer within the confines of the mold cavity to solidify the copolymer and form the molded article which is then retrieved from the mold cavity.
    • 一种制备由全同立构乙烯丙烯共聚物形成的模制品的方法,该方法包括提供乙烯含量不超过(5)重量%的全同立构乙烯 - 丙烯共聚物,通过乙烯和丙烯在 等规茂金属催化剂; 将该共聚物加热至熔融状态; 将成核剂加入共聚物中,其有效量在48小时模塑制品的均匀收缩率为至少85%,由48小时标记处的横向和纵向收缩差确定; 将熔融共聚物挤出到模腔中; 冷却共聚物在模腔内以固化共聚物并形成模制品,然后将其从模腔中取出。