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12 条记录 (耗时 0.015 秒)

    LOW EMISSION POLYPROPYLENE FOAM SHEETS
    5.
    发明申请
    LOW EMISSION POLYPROPYLENE FOAM SHEETS 审中-公开

    公开(公告)号：US20200087478A1

    公开(公告)日：2020-03-19

    申请号：US16467202

    申请日：2017-12-28

    申请人： Borealis AG

    发明人： Hermann Braun ,  Norbert Reichelt ,  Andreas Fuchs ,  Alexander Standler ,  Paul De Mink ,  Markus Gahleitner

    IPC分类号： C08J9/14 ,  C08J9/16 ,  C08J9/22 ,  C08J7/18 ,  C08J5/18 ,  C08F110/06 ,  C08K5/00 ,  C08K5/14

    摘要： The invention relates to a process for the production of a foam having low organic compounds emissions, to polypropylene foamed products obtainable by the process, and to a process for the manufacture of low organic compounds emission articles comprising a foam for use in cars and food packaging. The process comprises the steps of: a) providing a foam comprising a propylene composition comprising a high melt strength propylene (HMS-PP) homopolymer or copolymer or combinations thereof, said HMS-PP foam having a melt strength of at least 25 cN at a maximum speed of at least 200 mm/s and a melting temperature of at least 135° C. and b) subjecting the HMS-PP foam to a thermal treatment at a temperature Tt which is preferably between 5 and 15° C. below the melting temperature Tm of the HMS-PP for a duration between preferably 1 and 10 minutes.

    Process for producing modified olefin polymer in an extruder
    6.
    发明授权
    Process for producing modified olefin polymer in an extruder 有权

    公开(公告)号：US10105908B2

    公开(公告)日：2018-10-23

    申请号：US15544204

    申请日：2016-02-03

    申请人： Borealis AG

    发明人： Nicke Bergman ,  Udo Muster ,  Norbert Reichelt ,  Wolfgang Gierlinger

    IPC分类号： B29C47/10 ,  B29C67/24 ,  C08F255/02 ,  B29B9/06 ,  C08J3/24 ,  B29C47/30 ,  B29C47/76 ,  B29C47/92 ,  B29K23/00

    摘要： The present invention is directed to a process for producing a modified olefin polymer in an extruder having a feed zone, a melting zone, optionally a mixing zone and optionally a die zone, (A) introducing a stream of an olefin polymer into the feed zone of the extruder; (B) introducing a stream of a free radical generator directly into the feed zone or the melting zone or the mixing zone, if present, of the extruder; (C) introducing a stream of a functionally unsaturated compound directly into the feed zone or the melting zone or the mixing zone, if present, of the extruder; (D) extruding the mixture in the extruder at a temperature which is greater than the decomposition temperature of the free radical generator and the melting temperature of the olefin polymer but less than the decomposition temperature of the olefin polymer thereby producing the modified olefin polymer in the extruder; and, optionally, (G) passing the melt of the modified olefin polymer through the die zone to a pelletiser.

    POLYPROPYLENE - POLYETHYLENE BLENDS WITH IMPROVED PROPERTIES
    7.
    发明申请
    POLYPROPYLENE - POLYETHYLENE BLENDS WITH IMPROVED PROPERTIES 审中-公开
    具有改进性能的聚丙烯 - 聚乙烯共混物

    公开(公告)号：US20170044359A1

    公开(公告)日：2017-02-16

    申请号：US15306620

    申请日：2015-04-30

    申请人： BOREALIS AG

    发明人： Susanne Kahlen ,  Markus Gahleitner ,  Carl-Gustaf Ek ,  Bhawna Kulshreshtha ,  Norbert Reichelt ,  Gernot Baumgärtel

    IPC分类号： C08L23/12 ,  C08L23/06

    CPC分类号： C08L23/12 ,  C08L23/06 ,  C08L2205/02 ,  C08L2205/025 ,  C08L2205/035 ,  C08L2207/02 ,  C08L2207/062 ,  C08L2207/20 ,  C08L23/16

    摘要： Polypropylene-Polyethylene blends comprising A) 75 to 90 wt % of a blend of A-1) polypropylene and A-2) polyethylene and B) 10 to 25 wt % of a compatibilizer being a heterophasic polyolefin composition comprising B-1) a polypropylene with an MFR2 between 1.0 and 300 g/10 min (according to ISO 1133 at 230° C. at a load of 2.16 kg) and B-2) a copolymer of ethylene and propylene or C4 to C10 alpha olefin with a Tg (measured with dynamic-mechanical thermal analysis, DMTA, according to ISO 6721-7) of below −25° C. and an intrinsic viscosity (measured in decalin according to DIN ISO 1628/1 at 135° C.) of at least 3.0 dl/g, whereby the blend has simultaneously increased Charpy Notched Impact Strength (according to ISO 179-1eA, measured at 23° C.), Flexural Modulus (according to ISO 178) as well as heat deflection resistance (determined with DMTA according to ISO 6721-7).

    摘要翻译： 聚丙烯 - 聚乙烯共混物，其包含A）75至90重量％的A-1）聚丙烯和A-2）聚乙烯的共混物和B）10至25重量％的增容剂，其为包含B-1的多相聚烯烃组合物）聚丙烯 MFR2在1.0和300g / 10min之间（根据ISO 1133在230℃，2.16kg负荷下）和B-2）乙烯与丙烯或C 4至C 10α-烯烃与Tg的共聚物（测量 使用动态机械热分析，根据ISO 6721-7的DMTA）低于-25℃，特性粘度（根据DIN ISO 1628/1在135℃下在萘烷中测量）为至少3.0dl / g，其中共混物同时增加夏比缺口冲击强度（根据ISO 179-1eA，在23℃下测量），弯曲模量（根据ISO 178）以及耐热偏转性（根据ISO 6721测定的DMTA -7）。