POLYPROPYLENE COMPOSITION AND MOLDED ARTICLE

    公开(公告)号:US20210253837A1

    公开(公告)日:2021-08-19

    申请号:US17253435

    申请日:2019-06-19

    Abstract: A polypropylene composition made from or containing (i) component (1) made from or containing a propylene homopolymer or copolymer containing 0 to 0.5% by weight of an ethylene-derived unit; (ii) component (2) made from or containing an ethylene/propylene copolymer containing 15 to 30% by weight of an ethylene-derived unit; and (iii) 0.01 to 1.0 parts by weight of a crystal nucleating agent based on a total of 100 parts by weight of component (1) and component (2); wherein 1) the Mw/Mn value of xylene insolubles (XI) is in the range of 6 to 20, 2) the weight ratio of component (1) to component (2) is in the range of 82:18 to 90:10, 3) the intrinsic viscosity of xylene solubles (XSIV) is in the range of 2.5 to 3.4 dl/g, 4) the MFR (at 230° C. under a load of 2.16 kg) is in the range of 3 to 10 g/10 min.

    POLYOLEFIN COMPOSITION FOR CABLE INSULATION

    公开(公告)号:US20210074447A1

    公开(公告)日:2021-03-11

    申请号:US16965794

    申请日:2019-01-21

    Abstract: A cable article made from or containing a polyolefin composition made from or containing from 20.0 wt % to 80.0 wt % of component T1) being an interpolymer of ethylene and less than 7 wt %, of a polymerizable comonomer; from 0.5 wt % to 5.0 wt % of a peroxide; and from 20.0 wt % to 80.0 wt % of component T2) 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 0.1% to 20% by weight of alpha-olefin units; and C) 30-60% by weight of a copolymer of ethylene and propylene containing from 25% to 75% by weight of ethylene units, wherein the cable article is selected from the group consisting of cable insulation and cable jacketing.

    COMPOSITIONS OBTAINED FROM RECYCLED POLYOLEFINS

    公开(公告)号:US20200339794A1

    公开(公告)日:2020-10-29

    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.

    Catalyst components for the polymerization of olefins

    公开(公告)号:US10759882B2

    公开(公告)日:2020-09-01

    申请号:US16337779

    申请日:2017-09-25

    Abstract: A process for the preparation of a solid catalyst component for the homo or copolymerization of olefins, wherein the solid catalyst component is made from or contains Mg, Ti, halogen and an electron donor selected from cycloalkyl ethers, wherein the process includes the steps of (a) dissolving a Mg based compound and a TiCl3 based compound in a liquid medium further made from or containing a cycloalkyl ether and a compound of formula R2OH where R2 is a C1-C20 hydrocarbon group, in which the Ti/Mg molar ratio ranges from 0.1 to 0.5, the cycloalkyl ether/Mg ratio ranges from 1 to 4 and the ROH/Mg molar ratio ranges from 1 to 4; and (b) adding, to the solution coming from step (a), SiCl4 in an amount such that the R2OH/SiCl4 molar ratio ranges from 0.5 to 1.5 and maintaining the temperature in the range 50-150° C. thereby precipitating the solid catalyst component particles.

    PROPYLENE ETHYLENE RANDOM COPOLYMER
    27.
    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 %.

    POLYOLEFIN COMPOSITION FOR FIBERS
    28.
    发明申请

    公开(公告)号:US20200165424A1

    公开(公告)日:2020-05-28

    申请号:US16629104

    申请日:2018-06-20

    Abstract: A polyolefinic fiber made from or containing from 2 wt % to 20 wt % relative to the total weight of the fiber of a polyolefin 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 0.1% to 20% by weight of alpha-olefin units and containing 25% by weight or less of a fraction soluble in xylene at 25° C.; and C) 30-60% by weight of a copolymer of ethylene and propylene containing from 25% to 75% by weight of ethylene units and containing from 40% to 95% by weight of a fraction soluble in xylene at 25° C.; the amounts of (A), (B) and (C) being referred to the total weight of (A)+(B)+(C), the sum of the amount of (A)+(B)+(C) being 100.

    Containers comprising propylene-based terpolymers

    公开(公告)号:US10550212B2

    公开(公告)日:2020-02-04

    申请号:US15511976

    申请日:2015-09-09

    Abstract: The present disclosure provides an article of manufacture made from or containing a propylene-based terpolymer, having (i) ethylene-derived units in the range from about 0.5 wt. % to about 1.8 wt. %; (ii) 1-butene-derived units in the range from about 1.5 wt. % to about 2.5 wt. %; (iii) a ratio of C2 wt %/C4 wt % in the range from about 0.40 to about 0.80, wherein C2 wt % is the weight percent of ethylene-derived units and C4 wt % is the weight percent of 1-butene-derived units; (iv) a melt flow rate in the range from about 30 g/10 min to about 80 g/10 min; (v) a xylene soluble fraction at 25° C. lower than about 5.0 wt. %; and (vi) a melting point higher than about 140° C. The article can be a container, which can be used for food applications.

    PROPYLENE POLYMER COMPOSITIONS
    30.
    发明申请

    公开(公告)号:US20190338065A1

    公开(公告)日:2019-11-07

    申请号:US16093491

    申请日:2017-03-17

    Abstract: The present disclosure provides a propylene composition made from or containing A) from 60 wt % to 75 wt %, of a propylene homopolymer having a Polydispersity Index (P.I.) value from 4.3 to 4.9, a fraction insoluble in xylene at 25° C., higher than 95%, based upon the weight of the propylene homopolymer, and MFR (Melt Flow Rate according to ISO 1133, condition L, at 230° C. and 2.16 kg load) ranging from 20 to 75 g/10 min; B) from 25 wt % to 40 wt %, of a copolymer of propylene with from 46.0 wt % to 49.0 wt %; of ethylene derived units, based upon the weight of the propylene copolymer; wherein the propylene polymer composition having an intrinsic viscosity of the fraction soluble in xylene at 25° C. between 2.2 to 2.9 dl/g; and the relation: 10.7+1.3×MFRa−17.7×P.I.−29.3×IV+4.9×Xs  (I) between about 40 to about 66; wherein MFRa is the melt flow rate of the component A); P.I. is the polydispersity index of component A); IV is the intrinsic viscosity of the fraction soluble in xylene at 25° C.; and Xs is the fraction soluble in xylene at 25° C.; and wherein the amount of A+B is equal to 100 wt %.

Patent Agency Ranking