RECYCLED POLYETHYLENE-POLYPROPYLENE BLENDS COMPRISING A COMPATIBILIZER

    公开(公告)号:US20220177679A1

    公开(公告)日:2022-06-09

    申请号:US17598572

    申请日:2020-03-27

    Applicant: BOREALIS AG

    Abstract: The present invention is directed to a polyethylene-polypropylene composition comprising a blend (A) being a recycled material, said blend comprising polypropylene and polyethylene, and a compatibilizer (B) being a copolymer of 1-butene and ethylene. Further, the present invention is directed to an article comprising said polyethylene-polypropylene composition and a process for preparing said polyethylene-polypropylene composition. The present invention is also directed to the use of a compatibilizer (B) being a copolymer of 1-butene and ethylene for improving the impact-stiffness balance and the morphology of the blend (A).

    FOAM PRODUCED FROM POLYPROPYLENE WITH LOW GEL CONTENT
    36.
    发明申请
    FOAM PRODUCED FROM POLYPROPYLENE WITH LOW GEL CONTENT 有权
    泡沫由低聚凝胶含量的聚丙烯生产

    公开(公告)号:US20150203621A1

    公开(公告)日:2015-07-23

    申请号:US14414796

    申请日:2013-07-19

    Applicant: Borealis AG

    Abstract: Process for providing a polypropylene composition comprising a branched polypropylene in which a polypropylene with a melt flow rate MFR2 (230° C.) of more than 0.5 g/10 min is reacted with a thermally decomposing free radical-forming agent and optionally with a bifunctionally unsaturated monomer obtaining thereby the branched polypropylene, wherein the polypropylene composition has a F30 melt strength of more than 20.0 cN and a V30 melt extensibility of more than 200 mm/s.

    Abstract translation: 提供包含支化聚丙烯的聚丙烯组合物的方法,其中熔体流动速率MFR 2(230℃)大于0.5g / 10min的聚丙烯与热分解自由基形成剂和任选的双功能 得到支链聚丙烯的不饱和单体,其中聚丙烯组合物具有大于20.0cN的F30熔体强度和大于200mm / s的V30熔体延展性。

    Upgraded recycled polyethylene polypropylene blend

    公开(公告)号:US12163011B2

    公开(公告)日:2024-12-10

    申请号:US17284952

    申请日:2019-10-29

    Applicant: BOREALIS AG

    Abstract: A polyethylene-polypropylene composition obtainable by blending a) 80 to 97 wt.-% of a blend (A) comprising A-1) polypropylene and A-2) polyethylene, wherein the weight ratio of polypropylene to polyethylene is from 3:7 to 7:3, and wherein blend (A) is a recycled material, which is recovered from a waste plastic material derived from post-consumer and/or industrial waste; and b) 3 to 20 wt.-% of a compatibilizer (B) being a C2C8 plastomer, having—a DSC melting point of below 75° C. (ISO11357); —an MFR2 (ISO1133, 2.16 kg load at 190° C.) of equal or below 1.5 g/10 min; and—a density of equal or lower than 885 kg/m3 (ISO1183), wherein the ratio of MFR2 (blend (A) (ISO1133, 2.16 kg load at 230° C.)/MFR2 (compatibilizer (B) (ISO1133, 2.16 kg load at 190° C.), is in the range 3.0 to 15; and c) 0 to 1.0 wt.-% of a stabilizer or mixture of stabilizers.

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