COLOUR STABILISED POLYOLEFINS
    1.
    发明公开
    COLOUR STABILISED POLYOLEFINS 审中-公开
    可可脂多糖

    公开(公告)号:EP1910457A1

    公开(公告)日:2008-04-16

    申请号:EP06776420.9

    申请日:2006-07-26

    摘要: A polyolefin composition which comprises: (a) a polyolefin containing transition metal catalyst residue (excluding metallic co-catalyst residues) at a level below 5 ppm based on the weight of the polyolefin; (b) optionally a first stabilizing component consisting of a phenolic antioxidant or mixture of phenolic antioxidants; (c) optionally a second stabilizing component consisting of a phosphite antioxidant or a mixture of phosphite antioxidants; and (d) a third stabilizing component which acts also as a color suppressant and which is a polyfunctional alcohol, amine or amide or mixtures thereof, with at least one of (b) and (c) present and with the proviso that if the phosphite antioxidant is trilauryl phosphite it must be used in combination with another phosphite. The preferred stabilizing components (b) is 1,3,5-tris(4-tert-butyl-3-hydroxy-2,6 dimethyl,benzyl)-1,3,5-triazine-2,4,6-(1H,3H,5H)-trione or mixed tocopherols. The preferred stabilizing component (c) is Tris(mono-nonylphenyl)phosphite, Tris(2,4-di-t-butylphenyl)phosphite or bis(2,4-di-t-butyl phenyl)pentaerythritol diphosphite. The preferred stabilizing component (d) which also acts as a color suppressant component (d) is dipentaerythritol or tri-isopropanol amine. The preferred polyolefins are polypropylene and polyethylene. The polyolefin composition also may contain a hindered amine stabilizer (HAS) and an acid scavenger (e.g. calcium stearate).

    摘要翻译: 一种聚烯烃组合物,其包含:(a)基于聚烯烃的重量,含量低于5ppm的含聚烯烃的过渡金属催化剂残余物(不包括金属助催化剂残余物); (b)任选的由酚类抗氧化剂或酚类抗氧化剂的混合物组成的第一稳定组分; (c)任选的由亚磷酸酯抗氧化剂或亚磷酸酯抗氧化剂的混合物组成的第二稳定组分; 和(d)还具有作为抑色剂的第三稳定组分,其是与(b)和(c)中的至少一种存在的条件是多官能醇,胺或酰胺或其混合物,条件是如果亚磷酸酯 抗氧化剂是亚磷酸三月桂酯,它必须与另一种亚磷酸酯组合使用。 优选的稳定化组分(b)是1,3,5-三(4-叔丁基-3-羟基-2,6-二甲基苄基)-1,3,5-三嗪-2,4,6-(1H ,3H,5H) - 三酮或混合的生育酚。 优选的稳定化组分(c)是亚磷酸三(单壬基苯基)酯,亚磷酸三(2,4-二叔丁基苯基)酯或二(2,4-二叔丁基苯基)季戊四醇二亚磷酸酯。 还用作抑色剂组分(d)的优选的稳定组分(d)是二季戊四醇或三异丙醇胺。 优选的聚烯烃是聚丙烯和聚乙烯。 聚烯烃组合物还可以含有受阻胺稳定剂(HAS)和酸清除剂(例如硬脂酸钙)。