Propylene polymers for films
    1.
    发明授权
    Propylene polymers for films 有权
    丙烯聚合物薄膜

    公开(公告)号:US06583227B2

    公开(公告)日:2003-06-24

    申请号:US09800238

    申请日:2001-03-06

    IPC分类号: C08L2314

    摘要: This invention relates generally to crystalline propylene polymers, to methods for their production and to methods for their use in film applications. Specifically, this invention relates to crystalline propylene polymers comprising both propylene homopolymer and propylene copolymer. The compositions are prepared using metallocene catalyst systems comprising at least two metallocenes in a polymerization process that involves the sequential or parallel polymerization of propylene homopolymer and copolymer using propylene with a small amount of comonomer, preferably ethylene. The polymerization is catalyzed by a dual metallocene catalyst system. The resulting polymers have a broad, bimodal molecular weight distribution. The resulting polymers are excellent for use in the production of biaxially oriented films or non-oriented films. Films prepared with these propylene polymers have a significantly broader processability range and can be evenly stretched at lower temperature compared to films prepared from traditional propylene polymer.

    摘要翻译: 本发明一般涉及结晶丙烯聚合物,其制备方法及其用于膜应用的方法。 具体地说,本发明涉及包含丙烯均聚物和丙烯共聚物的结晶丙烯聚合物。 在聚合过程中使用包含至少两种金属茂的茂金属催化剂体系制备组合物,其涉及使用丙烯与少量共聚单体,优选乙烯的丙烯均聚物和共聚物的顺序或平行聚合。 聚合由双茂金属催化剂体系催化。 所得聚合物具有宽的双峰分子量分布。 所得聚合物非常适用于制备双轴取向膜或非取向膜。 用这些丙烯聚合物制备的膜具有显着更宽的加工性能范围,与传统丙烯聚合物制备的膜相比,可以在较低的温度下均匀地拉伸。

    Composition for preparing cement-adhesive reinforcing fibers
    6.
    发明授权
    Composition for preparing cement-adhesive reinforcing fibers 失效
    用于制备水泥粘合剂增强纤维的组合物

    公开(公告)号:US4710540A

    公开(公告)日:1987-12-01

    申请号:US816032

    申请日:1986-01-03

    IPC分类号: C04B16/06 C08F8/42 C08F8/00

    CPC分类号: C04B16/0625 C08F8/42

    摘要: A modifier composition is disclosed for compounding with a polyolefin to produce a resin from which cement adherent polyolefin fibers may be produced by conventional fiber forming methods. The modifier composition comprises the reaction product obtained from the high shear dry blending of an alkylamino alkoxysilane with an acid modified polyolefin, preferably .gamma.-aminopropyltriethoxysilane dry blended with maleated polypropylene. Such modifier composition when compounded in from about 1 to about 5 weight percent with a polyolefin, preferably polypropylene, provides a resin from which cement adherent fibers may be produced.

    摘要翻译: 公开了一种改性剂组合物,用于与聚烯烃混合以制备可通过常规纤维形成方法由其制备水泥粘着的聚烯烃纤维的树脂。 改性剂组合物包含由烷基氨基烷氧基硅烷与酸改性聚烯烃的高剪切干混得到的反应产物,优选与马来酸化聚丙烯干混的γ-氨基丙基三乙氧基硅烷。 当与聚烯烃(优选聚丙烯)混合约1至约5重量%时,这种改性剂组合物提供可由其制备水泥粘附纤维的树脂。

    Thermoplastic olefin alloys and method for producing the same
    9.
    发明授权
    Thermoplastic olefin alloys and method for producing the same 失效
    热塑性烯烃合金及其制造方法

    公开(公告)号:US5210139A

    公开(公告)日:1993-05-11

    申请号:US651666

    申请日:1991-02-06

    摘要: A thermoplastic olefin comprising an alloy of an olefin copolymer elastomer and a propylene/comonomer random copolymer is provided. The comonomer is selected from one or more of ethylene and C.sub.4 to C.sub.10 alpha-olefins. Polypropylene is an optional component of the alloy. The alloy may be produced by melt blending, reactor blending or a combination thereof, of the various components.

    摘要翻译: 提供了包含烯烃共聚物弹性体和丙烯/共聚单体无规共聚物的合金的热塑性烯烃。 共聚单体选自乙烯和C 4至C 10α-烯烃中的一种或多种。 聚丙烯是合金的可选组分。 合金可以通过各种组分的熔融共混,反应器共混或其组合来制备。

    Compositions for preparing cement-adhesive reinforcing fibers
    10.
    发明授权
    Compositions for preparing cement-adhesive reinforcing fibers 失效
    用于制备水泥粘合剂增强纤维的组合物

    公开(公告)号:US4952631A

    公开(公告)日:1990-08-28

    申请号:US228401

    申请日:1988-08-04

    IPC分类号: C04B16/06 C08F8/42

    CPC分类号: C04B16/0625 C08F8/42

    摘要: A modifier composition is disclosed for compounding with a polyolefin to produce a resin from which cement adherent polyolefin fibers may be produced by conventional fiber forming methods. The modifier composition comprising a polyolefin resin modified to contain a reactive Si(IV) moeity. A preferred embodiment comprises the reaction product obtained from the high shear dry blending of an alkylamino alkoxysilane with an acid modified polyolefin, preferably gamma-aminopropyltriethoxysilane dry blended with maleated polypropylene. Such modifier composition when compounded in from about 1 to about 10 weight percent with a polyolefin, preferably polypropylene, provides a resin from which cement adherent fibers may be produced.

    摘要翻译: 公开了一种改性剂组合物,用于与聚烯烃混合以制备可通过常规纤维形成方法由其制备水泥粘着的聚烯烃纤维的树脂。 改性剂组合物包含被改性以含有活性Si(IV)的摩尔比的聚烯烃树脂。 优选的实施方案包括从烷基氨基烷氧基硅烷与酸改性聚烯烃的高剪切干混合获得的反应产物,优选与马来酸化聚丙烯干混的γ-氨基丙基三乙氧基硅烷。 当与聚烯烃(优选聚丙烯)混合约1至约10重量%时,这种改性剂组合物提供可由其制备水泥粘附纤维的树脂。