中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

764 records (took 0.023 seconds)

    Multistage process for the polymerization of ethylene
    373.
    发明授权
    Multistage process for the polymerization of ethylene 有权
    乙烯聚合的多阶段方法

    公开(公告)号：US09441056B2

    公开(公告)日：2016-09-13

    申请号：US14653961

    申请日：2013-12-10

    Applicant: Basell Poliolefine Italia S.r.l.

    Inventor： Andreas Maus ,  Gerhardus Meier ,  Gianni Collina ,  Diego Brita

    IPC: C08F110/02 ,  C08F2/14 ,  C08F2/38 ,  C08F10/02

    CPC classification number: C08F110/02 ,  C08F2/14 ,  C08F10/02 ,  C08F2/001 ,  C08F2500/07 ,  C08F2500/12 ,  C08F2500/14

    Abstract: The present invention relates to a slurry process for preparing an ethylene polymer having a melt flow ratio F/P, which is the ratio among the melt index value measured according to ASTM 1238 condition “F” and the melt index value measured according to ASTM 1238 condition “P” of equal to or lower than 27, carried out in two or more stages of polymerization at temperatures in the range from 60 to 120° C., in which at least two of the said two or more polymerization stages are carried out under different amounts of molecular weight regulator, said process being carried out in the presence of (A) a solid catalyst component comprising Ti, Mg, halogen, having a porosity (PF), measured by the mercury method and due to pores with radius equal to, or lower than, 1 μm, of at least 0.3 cm3/g and a surface area determined by BET method, of lower than 100 m2/g, and being further characterized by the fact that more than 50% of the titanium atoms are in a valence state lower than 4 and (B) of an organoaluminum compound.

    Abstract translation: 本发明涉及一种用于制备熔体流动比F / P的乙烯聚合物的浆料方法，其是根据ASTM 1238条件“F”测量的熔体指数与根据ASTM 1238测量的熔体指数之间的比率 条件“P”等于或低于27，在60至120℃的温度下在两个或更多个聚合阶段进行，其中至少两个所述两个或更多个聚合阶段被执行 在不同量的分子量调节剂下，所述方法在（A）包含通过汞法测量的具有孔隙率（PF）的Ti，Mg，卤素的固体催化剂组分的存在下进行，并且由于具有半径相等的孔 至少为0.3cm 3 / g，BET法测定的表面积低于100m2 / g，进一步的特征在于，超过50％的钛原子为 低于4的价态，（B） 的有机铝化合物。

    POLYPROPYLENE COMPOSITIONS CONTAINING GLASS FIBER FILLERS
    374.
    发明申请
    POLYPROPYLENE COMPOSITIONS CONTAINING GLASS FIBER FILLERS 有权
    包含玻璃纤维填料的聚丙烯组合物

    公开(公告)号：US20160137824A1

    公开(公告)日：2016-05-19

    申请号：US14903000

    申请日：2014-06-24

    Applicant: BASELL POLIOLEFINE ITALIA S.R.L.

    Inventor： RAINER KOHLER ,  MICHELE GRAZZI ,  JURGEN ROHRMANN ,  GIAMPAOLO PELLEGATTI

    IPC: C08L23/14

    CPC classification number: C08L23/14 ,  C08K7/14 ,  C08L23/0815 ,  C08L23/10 ,  C08L23/16 ,  C08L51/06 ,  C08L2205/02 ,  C08L2205/025

    Abstract: Composition comprising (A) from 30 to 60 by weight, of a soft polyolefin composition comprising, 10-50% by weight of a copolymer (a) of propylene, which copolymer contains from 1 to 8% of comonomer content; 50-90wt % of a copolymer (b) of ethylene and other alpha-olefin(s), containing from 57 to 80% of ethylene; wherein the weight ratio of the content of copolymer component (b) to the fraction XS soluble in xylene at room temperature (about 25° C.), both (b and XS) referred to the total weight of (a)+(b), is of 1.5 or less, and the intrinsic viscosity [η] of the said XS fraction is of 3 dl/g or more; and the total quantity of copolymerized ethylene is preferably from 30% to 65% by weight; (B) from 5 to 30 wt % of a glass fiber filler; (C) from 0 to 5% by weight of a compatibilizer; (D) from 10 to 40 by weight of a polypropylene component selected from propylene homopolymers, propylene copolymers containing up to 5% by moles of ethylene and/or C4-C10 α-olefin(s) and combinations of such homopolymers and copolymers, wherein the Melt Flow Rate, of the polypropylene component D) is generally from 0.3 to 2500 g/10 min.

    Abstract translation: 组合物，其包含（A）30至60重量％的软质聚烯烃组合物，其包含10-50重量％的丙烯共聚物（a），该共聚物含有1至8重量％的共聚单体含量; 50-90重量％的乙烯和其它α-烯烃的共聚物（b），其含有57-80％的乙烯; 其中共聚物组分（b）的含量与在室温（约25℃）下可溶于二甲苯的级分XS的重量比（b和XS）均指（a）+（b）的总重量， ，为1.5以下，所述XS馏分的特性粘度[ηe]为3dl / g以上， 共聚乙烯的总量优选为30〜65重量％。 （B）5〜30重量％的玻璃纤维填料; （C）0〜5重量％的增容剂; （D）10至40重量份的选自丙烯均聚物的聚丙烯组分，含有至多5摩尔％乙烯和/或C 4 -C 10α-烯烃的丙烯共聚物以及这些均聚物和共聚物的组合，其中 聚丙烯组分D）的熔体流动速率通常为0.3至2500g / 10min。

    Polypropylene composition
    378.
    发明授权
    Polypropylene composition 有权
    聚丙烯组成

    公开(公告)号：US09000097B2

    公开(公告)日：2015-04-07

    申请号：US14128382

    申请日：2012-07-06

    Applicant: Paola Massari ,  Marco Ciarafoni ,  Tiziana Caputo

    Inventor： Paola Massari ,  Marco Ciarafoni ,  Tiziana Caputo

    IPC: C08L23/10 ,  C08L23/14

    CPC classification number: C08L23/14 ,  C08L23/0815 ,  C08L23/10 ,  C08L2312/02

    Abstract: A polyolefin composition comprising (percent by weight): A) from 65% to 75% of a propylene homopolymer or a propylene copolymer containing from 0.1% to 5.0% of ethylene derived units having a fraction soluble in Xylene at 25° C. lower than 3 wt %; B) from 25% to 35% of an ethylene copolymer containing from 3% to 12% of propylene derived units; said composition having a melt flow rate (MFR) determined according to ISO method 1133 (230° C. and 2.16 kg) comprised between 11 g/10 min and 50 g/10 min; the xylene soluble fraction ranging from 3% to 15% and the intrinsic viscosity (IV) of the xylene soluble fraction ranging from 0.8 dl/g to 2 dl/g.

    Abstract translation: 包含（重量％）的聚烯烃组合物：A）65％至75％的丙烯均聚物或含有0.1％至5.0％的乙烯衍生单元的丙烯共聚物，其具有在25℃下可溶于二甲苯的级分，低于 3重量％ B）25％至35％的含有3％至12％丙烯衍生单元的乙烯共聚物; 所述组合物具有根据ISO方法1133（230℃和2.16kg）测定的熔体流动速率（MFR）为11g / 10min至50g / 10min; 二甲苯可溶级分为3％至15％，二甲苯可溶级分的特性粘度（Ⅳ）为0.8 dl / g至2 dl / g。

Patent Agency Ranking