PIPES AND POLYPROPYLENE COMPOSITION FOR THE MANUFACTURE THEREOF

    公开(公告)号:US20210340367A1

    公开(公告)日:2021-11-04

    申请号:US17282294

    申请日:2019-09-11

    Abstract: A polypropylene composition made from or containing: A) from 88.0 wt. % to 98.0 wt. %, of a random copolymer of propylene containing from 0.8 wt. % to 4.8 wt. % of 1-hexene derived units; the random copolymer of propylene having: a Melt Flow Rate: measured according to ISO 1133 (230° C., 5 Kg) ranging from 0.5 to 4.4 g/10 min; and B) from 2.0 wt. % to 12.0 wt. % of a terpolymer of propylene ethylene and 1-hexene having a content of ethylene derived units ranging from 35 wt. % to 60 wt.; and a content of 1-hexene derived units ranging from 1 wt. % to 6 wt. %; wherein the polypropylene composition has a Melt Flow Rate: measured according to ISO 1133 (230° C., 5 Kg) ranging from 0.5 to 5.0 g/10 min.

    PROPYLENE-BASED COMPOSITION FOR PIPES
    2.
    发明申请

    公开(公告)号:US20190338113A1

    公开(公告)日:2019-11-07

    申请号:US16338904

    申请日:2017-09-22

    Abstract: A polyolefin composition made from or containing:A) from 85.0 wt % to 99.5 wt % of a propylene 1-hexene copolymer, based upon the weight of the polyolefin composition and B) from 0.5 wt % to 15.0 wt % of a propylene, ethylene copolymer composition, based upon the weight of the polyolefin composition, made from or containing: b1) from 12 wt % to 52 wt % of a propylene homopolymer or a propylene/ethylene copolymer, based upon the weight of the propylene, ethylene copolymer composition and b2) from 48 wt % to 88 wt % of a propylene ethylene copolymer, based upon the weight of the propylene, ethylene copolymer composition, having a content of ethylene derived units ranging from 15.0 wt % to 42.0 wt %; wherein the polyolefin composition has a melt flow rate (230° C./5 kg. ISO 1133) ranging from 0.2 g/10 min to 4.0 g/10 min; the sum A+B being 100 and the sum b1+b2 being 100.

    COMPOSITIONS OBTAINED FROM RECYCLED POLYOLEFINS

    公开(公告)号:US20230099166A1

    公开(公告)日:2023-03-30

    申请号:US17801310

    申请日:2021-02-04

    Abstract: A polypropylene composition made from or containing: T1) 35-65 wt % of a recycled polypropylene mixture containing at least 80 wt % of rigid polypropylene items and having a purity of at least 90 wt %; T2) 20-50 wt % of an ethylene/propylene copolymer; T3) 5-20 wt % of a propylene/ethylene heterophasic copolymer composition made from or containing a) from 12 wt % to 52 wt % of a propylene homopolymer or a propylene/ethylene copolymer; and b) from 48 wt % to 88 wt % of a propylene/ethylene copolymer having a content of ethylene derived units ranging from 15 wt % to 42 wt %; wherein the propylene composition has a melt flow rate (ISO 1133 230° C./2.16 kg) ranging from 0.5 to 20 g/10 min.

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