中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

1872 records (took 0.051 seconds)

    Components and catalysts for the polymerization of olefins
    91.
    发明授权
    Components and catalysts for the polymerization of olefins 有权

    公开(公告)号：US11220519B2

    公开(公告)日：2022-01-11

    申请号：US17267601

    申请日：2019-07-25

    Applicant: BASELL POLIOLEFINE ITALIA S.R.L.

    Inventor： Simona Guidotti ,  Dario Liguori ,  Giampiero Morini ,  Gianni Vitale

    IPC: C07F7/28 ,  C07F3/02 ,  C07F9/94 ,  C08F210/06

    Abstract: A solid catalyst component for the polymerization of olefins CH2═CHR in which R is hydrogen or a hydrocarbon radical with 1-12 carbon atoms, made from or containing Mg, Ti, Bi, halogen and an electron donor obtained from a process including the steps:
    (a) dissolving a Mg(OR)2 compound wherein R groups, equal to or different from each other, are C1-C15 hydrocarbon groups optionally containing a heteroatom selected from O, N and halogen, in an organic liquid medium, thereby forming a first liquid mixture;
    (b) contacting the first liquid mixture (a) with TiCl4, thereby forming a second liquid mixture absent a solid phase, and
    (c) subjecting the second liquid mixture (b) to conditions, whereby solid catalyst particles are formed,
    wherein (i) a Bi compound and (ii) a bidentate electron donor compound are present in one or more of steps (a) to (c) and/or contacted with the solid catalyst particles obtained from (c).

    Propylene ethylene random copolymer
    92.
    发明授权
    Propylene ethylene random copolymer 有权

    公开(公告)号：US11186664B2

    公开(公告)日：2021-11-30

    申请号：US16647672

    申请日：2018-08-30

    Applicant: BASELL POLIOLEFINE ITALIA S.R.L.

    Inventor： Paola Massari ,  Claudio Cavalieri ,  Davide Tartari ,  Tiziana Caputo ,  Isabella Maria Vittoria Camurati

    IPC: C08F210/16 ,  C08F210/06 ,  C08F2/34 ,  C08L23/14

    Abstract: A propylene ethylene copolymer having: i) xylene soluble fraction at 25° C. ranging from 14 wt % to 27 wt %; ii) intrinsic viscosity of the fraction soluble in xylene at 25° C. ranging from 1.0 to 2.4 dl/g; iii) melt flow rate, MFR, ranging from 1.0 g/10 min to 50.0 g/10 min; iv) an ethylene derived units content ranging from 5.0 wt % to 12.0 wt %; v) the ethylene derived units content on the fraction insoluble in xylene at 25° C. ranging from 2.5 wt % to 6.0 wt %; vi) the ethylene derived units content on the fraction soluble in xylene at 25° C. ranging from 15.2. wt % to 30.2 wt %; and vii) C13 NMR sequences PEP measured on the fraction insoluble in xylene at 25° C. ranging from 3.5 mol % to 5.5 mol % and C13 NMR sequences PEP measured on the fraction soluble in xylene at 25° C. ranging from 11.0 mol % to 14.2 mol %.

    BUTENE-1 POLYMER COMPOSITION HAVING HIGH MELT FLOW RATE
    96.
    发明申请
    BUTENE-1 POLYMER COMPOSITION HAVING HIGH MELT FLOW RATE 有权

    公开(公告)号：US20210130509A1

    公开(公告)日：2021-05-06

    申请号：US16633259

    申请日：2018-08-03

    Applicant: BASELL POLIOLEFINE ITALIA S.R.L.

    Inventor： ROBERTA MARCHINI ,  STEFANO SPATARO ,  ROBERTA PICA

    IPC: C08F10/08 ,  C08F210/08 ,  C08F2/00 ,  C08F4/659 ,  C08F4/6592 ,  C08L23/20 ,  B01J19/00 ,  C09J123/20 ,  C08F210/16

    Abstract: A butene-1 polymer composition having MFR values of from 20 to less than 100 g/10 min., measured according to ISO 1133 at 190° C. with a load of 2.16 kg, made from or containing: A) a butene-1 homopolymer or a copolymer of butene-1 with one or more comonomers selected from the group consisting of ethylene and higher alpha-olefins, having a copolymerized comonomer content of up to 5% by mole; and B) a copolymer of butene-1 with one or more comonomers selected from the group consisting of ethylene and higher alpha-olefins, having a copolymerized comonomer content of from 6% to 20% by mole; wherein the composition having a total copolymerized comonomer content from 4% to 15% by mole, referred to the sum of A) and B), and a content of fraction soluble in xylene at 0° C. of 75% by weight or less, determined on the total weight of A) and B).

Patent Agency Ranking