LOW EMISSION POLYPROPYLENE FOAM SHEETS
    5.
    发明申请

    公开(公告)号:US20200087478A1

    公开(公告)日:2020-03-19

    申请号:US16467202

    申请日:2017-12-28

    Applicant: Borealis AG

    Abstract: 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.

    Heterophasic polypropylene copolymer composition
    9.
    发明授权
    Heterophasic polypropylene copolymer composition 有权
    异相聚丙烯共聚物组合物

    公开(公告)号:US08716387B2

    公开(公告)日:2014-05-06

    申请号:US13826755

    申请日:2013-03-14

    Applicant: Borealis AG

    Abstract: Heterophasic polypropylene composition comprising (A) 45 to 70 wt % of a propylene homo- or copolymer matrix with an MFR2 in accordance with ISO 1133 (230° C., 2.16 kg load) of ≧80 g/10 min and (B) 25 to 40 wt % of an elastomeric propylene-ethylene copolymer, having an intrinsic viscosity IV (ISO 1628, with decalin as solvent) of ≧3.3 dl/g and an ethylene content of 20 to 50 wt %, (C) 0-15 wt % of an elastomeric ethylene/alpha-olefin random copolymer (D) 3-25 parts per weight of inorganic filler, the heterophasic polypropylene compositions having a total MFR2 (230° C./2.16 kg) in accordance with ISO 1133 of ≧5 g/10 min, a Charpy notched impact strength according to ISO 179/1eA at +23° C. of ≧15.0 kJ/m2, preferably ≧25.0 kJ/m2, a minimum value for the Charpy notched impact strength according to ISO 179/1eA at −20° C. of ≧7.0 kJ/m2, preferably ≧10.0 kJ/m2 and a tensile modulus according to ISO 527-3 of ≧1200 MPa; their preparation and use for producing injection moulded articles being free of flow marks.

    Abstract translation: 多相聚丙烯组合物,其包含(A)45至70重量%的丙烯均聚物或共聚物基体,其具有根据ISO 1133(230℃,2.16kg负荷)≥80g/ 10min的MFR 2和(B)25 至40重量%的丙烯 - 乙烯共聚物,其特性粘度IV(ISO 1628,作为溶剂的十氢化萘)为≥3.3dl/ g,乙烯含量为20〜50重量%,(C)为0〜15重量% %的弹性体乙烯/α-烯烃无规共聚物(D)3-25重量份的无机填料,根据ISO 1133的总共MFR 2(230℃/ 2.16kg)的多相聚丙烯组合物为≥5g / 10分钟,根据ISO 179 / 1eA在+ 23℃下的夏比缺口冲击强度为≥15.0kJ/ m 2,优选≥25.0kJ/ m 2,根据ISO 179 / 1eA的夏比缺口冲击强度的最小值 在-20℃,≥7.0kJ/ m 2,优选≥10.0kJ/ m 2,并且根据ISO 527-3的≧1200MPa的拉伸模量; 它们的制备和用于生产没有流痕的注塑制品。

    HETEROPHASIC POLYPROPYLENE COPOLYMER COMPOSITION
    10.
    发明申请
    HETEROPHASIC POLYPROPYLENE COPOLYMER COMPOSITION 有权
    异构聚丙烯共聚物组合物

    公开(公告)号:US20130317160A1

    公开(公告)日:2013-11-28

    申请号:US13826755

    申请日:2013-03-14

    Applicant: Borealis AG

    Abstract: Heterophasic polypropylene composition comprising (A) 45 to 70 wt % of a propylene homo- or copolymer matrix with an MFR2 in accordance with ISO 1133 (230° C., 2.16 kg load) of ≧80 g/10 min and (B) 25 to 40 wt % of an elastomeric propylene-ethylene copolymer, having an intrinsic viscosity IV (ISO 1628, with decalin as solvent) of ≧3.3 dl/g and an ethylene content of 20 to 50 wt %, (C) 0-15 wt % of an elastomeric ethylene/alpha-olefin random copolymer (D) 3-25 parts per weight of inorganic filler, the heterophasic polypropylene compositions having a total MFR2 (230° C./2.16 kg) in accordance with ISO 1133 of ≧5 g/10 min, a Charpy notched impact strength according to ISO 179/1eA at +23° C. of ≧15.0 kJ/m2, preferably ≧25.0 kJ/m2, a minimum value for the Charpy notched impact strength according to ISO 179/1eA at −20° C. of ≧7.0 kJ/m2, preferably ≧10.0 kJ/m2 and a tensile modulus according to ISO 527-3 of ≧1200 MPa; their preparation and use for producing injection moulded articles being free of flow marks.

    Abstract translation: 多相聚丙烯组合物,其包含(A)45至70重量%的丙烯均聚物或共聚物基质,其具有根据ISO 1133(230℃,2.16kg负荷)的MFR 2≥80g/ 10min和(B) 25〜40重量%的弹性体丙烯 - 乙烯共聚物,其特性粘度IV(ISO 1628,作为溶剂的十氢化萘)= 3.3dl / g,乙烯含量为20〜50重量%,(C) 15重量%的弹性体乙烯/α-烯烃无规共聚物(D)3-25重量份的无机填料,所述多相聚丙烯组合物具有根据ISO 1133的总MFR2(230℃/ 2.16kg) = 5g / 10min,根据ISO 179 / 1eA在+ 23℃下的Charpy缺口冲击强度> = 15.0kJ / m 2,优选> = 25.0kJ / m 2,对于Charpy缺口冲击强度的最小值 在-20℃下的ISO 179 / 1eA => 7.0kJ / m 2,优选> = 10.0kJ / m 2,并且根据ISO 527-3的= 1200MPa的拉伸模量; 它们的制备和用于生产没有流痕的注塑制品。

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