PROPYLENE ETHYLENE RANDOM COPOLYMER
    2.
    发明申请

    公开(公告)号:US20200216587A1

    公开(公告)日:2020-07-09

    申请号:US16647672

    申请日:2018-08-30

    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 %.

    PROPYLENE BASED TERPOLYMER FOR CONTAINERS
    5.
    发明申请
    PROPYLENE BASED TERPOLYMER FOR CONTAINERS 审中-公开
    用于容器的基于丙烯的三元共聚物

    公开(公告)号:US20160145365A1

    公开(公告)日:2016-05-26

    申请号:US14896644

    申请日:2014-05-06

    CPC classification number: C08F210/06 C08F2500/12 C08F210/16 C08F210/14

    Abstract: A container comprising a propylene, ethylene, 1-hexene terpolymer wherein in the terpolymer: (i) the content of ethylene derived units ranges from 0.5 wt % to 2.0 wt %; (ii) the content of 1-hexene derived units ranges from 1.5 wt % to 5.5 wt %; (iii) the content of ethylene derived units fulfills the following equation (I); C2

    Abstract translation: 一种包含丙烯,乙烯,1-己烯三元共聚物的容器,其中在三元共聚物中:(i)乙烯衍生单元的含量为0.5wt%至2.0wt%; (ii)1-己烯衍生单元的含量为1.5wt%至5.5wt%; (iii)乙烯衍生单元的含量满足下式(I); C2

    PROPYLENE ETHYLENE RANDOM COPOLYMER
    6.
    发明申请

    公开(公告)号:US20200032041A1

    公开(公告)日:2020-01-30

    申请号:US16495289

    申请日:2018-03-23

    Abstract: A propylene ethylene copolymer having: (i) an ethylene derived units content (C2) ranging from 2.0 wt % to 11.0 wt %, based upon the total weight of the copolymer; (ii)) a fraction soluble in xylene (Xs) at 25° C. (Xs) ranging from 7.1 wt % to 28.5 wt %, based upon the total weight of the copolymer; (iii) an intrinsic viscosity of the fraction soluble in xylene at 25° C. ranging from 3.2 dl/g to 5.6 dl/g; (iv) a melting point (Tm) higher than 140.0° C. and fulfilling the relation (I): Tm>155−1.4×C2   (I); and (v) a flexural modulus (TM) higher than 500 MPa and fulfilling the relation (II) TM>1900−285×C2+50×Xs   (II).

    PROCESS FOR GAS-PHASE POLYMERIZATION OF OLEFINS

    公开(公告)号:US20200031957A1

    公开(公告)日:2020-01-30

    申请号:US16498303

    申请日:2018-03-07

    Abstract: Process for the preparation of heterophasic propylene copolymer compositions (RAHECO) made from or containing a random propylene copolymer (RACO) and an elastomeric propylene copolymer (BIPO), the process being carried out in a reactor having two interconnected polymerization zones, a riser and a downcomer, wherein growing polymer particles: (a) flow through the first polymerization zone, the riser, under fast fluidization conditions in the presence of propylene and of ethylene or an alpha-olefin having from 4 to 10 carbon atoms, thereby obtaining the random propylene copolymer (RACO); (b) leave the riser and enter the second polymerization zone, the downcomer, through which the growing polymer particles flow downward in a densified form in the presence of propylene and of ethylene or an alpha-olefin having from 4 to 10 carbon atoms, wherein the concentration of ethylene or of the alpha-olefin in the downcomer is higher than in the riser, thereby obtaining the elastomeric propylene copolymer (BIPO); and (c) leave the downcomer and are reintroduced into the riser, thereby establishing a circulation of polymer between the riser and the downcomer.

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