Butene-1 polymer composition having high melt flow rate

    公开(公告)号:US11267912B2

    公开(公告)日:2022-03-08

    申请号:US16633259

    申请日:2018-08-03

    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).

    MIXTURES OF BITUMEN AND POLYMER COMPOSITIONS

    公开(公告)号:US20220056274A1

    公开(公告)日:2022-02-24

    申请号:US17420475

    申请日:2020-01-03

    Abstract: A mixture made from or containing
    T1) from 99 wt % to 75 wt % of bitumen, and T2) from 1 wt % to 25 wt % of a polymer composition made from or containing A) 5-35% by weight of a propylene homopolymer or a propylene ethylene copolymer; B) 20-50% by weight of a copolymer of ethylene and a C3-C8 alpha-olefin containing from 1.0% to 20.0% by weight of alpha-olefin units; and C) 30-60% by weight of a copolymer of ethylene and propylene containing from 25.0% to 75.0% by weight of ethylene derived units.

    BOPP MULTILAYER FILM
    343.
    发明申请

    公开(公告)号:US20220032593A1

    公开(公告)日:2022-02-03

    申请号:US17311076

    申请日:2019-11-18

    Abstract: A BOPP multilayer film having at least three layers made from or containing a nucleated propylene polymer composition having: A) from 77 wt % to 91 wt %, of a propylene homopolymer having a fraction insoluble in xylene at 25° C. higher than 95%; B) from 9 wt % to 23 wt %, of a copolymer of propylene with from 28.0 wt % to 42.0 wt % of ethylene derived units; and C) a nucleating agent selected from aromatic or aliphatic carboxylic acids, aromatic metal phosphates, sorbitol derivatives and talc, wherein the composition has an intrinsic viscosity (IV) of the fraction soluble in xylene at 25° C. between 1.0 dl/g and 1.9 dl/g, a fraction soluble (Xs) in xylene at 25° C. between 9.0 wt % and 21.0 wt %, a total melt flow rate (MFR) between 1.5 and 5 g/10 min and the value of the relation (I): 22.5+0.2*MFR−1.2*Xs+0.2*IV  (I) higher than 5.9.

    PRECURSORS AND CATALYST COMPONENTS FOR THE POLYMERIZATION OF OLEFINS

    公开(公告)号:US20210395401A1

    公开(公告)日:2021-12-23

    申请号:US17281441

    申请日:2019-09-17

    Inventor: DIEGO BRITA

    Abstract: A Ziegler-Natta catalyst component precursor made from or containing a mechanical mixture of (a) distinct particles of adducts of formula MgCl2(R1OH)n where R is a C1-C8 alkyl group and n is from 0.2 to 6 having average particle size (P50a) ranging from 5 to 100 μm; and (b) from 0.2 to 5.0% by weight of distinct particles of a solid compound containing more than 50% by weight of Sift units and having average particle size (P50b), wherein the ratio P50b/P50a ranges from 0.4 to 1.5.

    Compositions obtained from recycled polyolefins

    公开(公告)号:US11174379B2

    公开(公告)日:2021-11-16

    申请号:US16758526

    申请日:2018-11-05

    Abstract: A polyolefin composition made from or containing:
    T1) 70-95 wt %, of a polyolefin component containing:
    a1) from 30 wt % to 70 wt % of a propylene based polymer; and
    a2) from 30 wt % to 70 wt % of an ethylene based polymer; and
    T2) 5-30 wt % of a polyolefin component containing:
    A) 5-35% by weight of a propylene homopolymer or a propylene ethylene copolymer;
    B) 25-50% by weight of a copolymer of ethylene and a C3-C8 alpha-olefin containing 0.1-20% by weight of C3-C8 alpha-olefin units; and
    C) 30-60% by weight of a copolymer of ethylene and propylene containing 25-75% by weight of ethylene units.

    Butene-1 polymer composition having a high melt flow rate

    公开(公告)号:US11015090B2

    公开(公告)日:2021-05-25

    申请号:US16312512

    申请日:2017-07-03

    Abstract: A butene-1 polymer composition having MFR values of from 400 to 2000 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 a comonomer selected from the group consisting of ethylene and higher alpha-olefins, having a copolymerized comonomer content of up to 5% by mole; B) a copolymer of butene-1 with a comonomer selected from the group consisting of ethylene and higher alpha-olefins, having a copolymerized comonomer content of from 6% to 25% by mole; wherein the composition having a total copolymerized comonomer content from 5% to 18% by mole, referred to the sum of A) and B), and a content of fraction soluble in xylene at 0° C. of 65% by weight or more, determined on the total weight of A) and B).

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