HIGH IMPACT POLYPROPYLENE COMPOSITION

    公开(公告)号:US20250066594A1

    公开(公告)日:2025-02-27

    申请号:US18722651

    申请日:2022-12-16

    Abstract: A polypropylene composition includes at least 85 wt % a heterophasic propylene copolymer (A), 1.0 to 7.0 wt % a low density polyethylene (B), and 0.001 to 1.5 wt % an α-nucleating agent (C), wherein the heterophasic propylene copolymer (A) includes 75 to 90 wt % (a) a propylene homopolymer matrix and 10 to 25 wt % (b) an and wherein the ethylene-propylene copolymer comprises 43 to 57 wt % of units derived from ethylene and wherein the low density polyethylene (B) has a melt flow rate (MFRLDPE, 230) using 2.16 kg at 230° C. and wherein the low density polyethylene (B) has a density of 915 to 932 kg/m3, wherein the polypropylene composition has a total melt flow rate (MFRtotal) of 30 to 150 dg/min, wherein the total melt flow rate is determined using ISO1133:2011 using 2.16 kg at 230° C., wherein the polypropylene composition satisfies the following inequation: 0.9

    STABILISED POLYOLEFIN COMPOSITION
    5.
    发明申请
    STABILISED POLYOLEFIN COMPOSITION 审中-公开
    稳定的聚烯烃组合物

    公开(公告)号:US20170029597A1

    公开(公告)日:2017-02-02

    申请号:US15038900

    申请日:2014-11-26

    CPC classification number: C08K5/1545 C08K5/36 C08K5/45 F16L9/12 C08L23/06

    Abstract: The invention relates to a stabilised polyolefin composition comprising—A. at least a homopolymer or copolymer of ethylene or propylene and—B. natural Vitamin E comprising tocopherol and tocotrienol. The composition may also comprise a component C being at least one compound containing sulfur selected from glutathione, α-lipoic acid and acetyl-cysteine.

    Abstract translation: 本发明涉及包含-A的稳定的聚烯烃组合物。 至少是乙烯或丙烯的均聚物或共聚物和-B。 天然维生素E包含生育酚和生育三烯酚。 组合物还可以包含组分C,其为至少一种含有选自谷胱甘肽,α-硫辛酸和乙酰半胱氨酸的硫的化合物。

    PHOTOVOLTAIC ELEMENT AND POLYMER COMPOSITION FOR FRONT SHEET THEREOF

    公开(公告)号:US20210265516A1

    公开(公告)日:2021-08-26

    申请号:US17252802

    申请日:2019-07-11

    Abstract: The present invention relates to a photovoltaic element, comprising a front layer, a back layer, and a plurality of photovoltaic cells, which photovoltaic cells are present between the front layer and back layer, wherein the front layer consists of a polypropylene composition, comprising: a) a random polypropylene resin; b) a mixture of light stabilizing additives; said mixture comprising: i) a high molecular weight hindered tertiary amine light stabilizer (t-HM-HALS) having a weight average molecular weight of at least 1600 g/mol; ii) a low molecular weight hindered secondary amine light stabilizer (s-LM-HALS) having a weight average molecular weight of below 1000 g/mol; iii) an ultraviolet synergist, being a n-alkyl-3,5-dialkylated 4-hydroxybenzoate; iv) an ultraviolet absorber, being a hydroxybenzotriazole compound or a hydroxyl benzophenone compound or a mixture thereof; c) a mixture of antioxidant additives; said mixture comprising: i) a phenolic antioxidant; and ii) a phosphite additive. The invention also relates to a polypropylene composition and to the use thereof as front layer.

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