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    • 24. 发明授权
    • Weatherable resinous compositions
    • 耐候性树脂组合物
    • US08318851B2
    • 2012-11-27
    • US11873084
    • 2007-10-16
    • Franciscus Maria HuijsRobert Dirk van de GrampelRonald Akkermans
    • Franciscus Maria HuijsRobert Dirk van de GrampelRonald Akkermans
    • C08L51/00
    • C08L53/00C08L25/02C08L25/12C08L25/14C08L33/04C08L33/20C08L51/003C08L55/02C08L69/005C08L2205/03C08L2666/02C08L2666/24C08L2666/14C08L2666/04
    • Disclosed are compositions comprising: (i) 5-45 wt. % of an acrylonitrile-styrene-acrylate (ASA) graft copolymer or acrylate-modified ASA, (ii) 2-82 wt. % of at least one polyestercarbonate which is a block polyestercarbonate comprising organic carbonate blocks alternating with arylate blocks, said arylate blocks comprising ester structural units derived from at least one 1,3-dihydroxybenzene moiety and at least one aromatic dicarboxylic acid, and having a degree of polymerization of at least about 4; and (iii) 5-60 wt. % of at least one rigid thermoplastic polymer comprising structural units derived from styrene and acrylonitrile; alpha-methylstyrene and acrylonitrile; alpha-methylstyrene, styrene, and acrylonitrile; styrene, acrylonitrile, and methyl methacrylate; alpha-methyl styrene, acrylonitrile, and methyl methacrylate; or alpha-methylstyrene, styrene, acrylonitrile, and methyl methacrylate, or mixtures thereof, wherein wt. % values are based on the weight of components (i)-(iii) and wherein a molded article made from the composition has a notched Izod impact strength of at least 5 kilojoules per square meter (kJ/m2) as determined according to ISO 180 at room temperature and a Vicat B value of at least 101° C. determined at 120° C. according to ISO 306. Articles made from said compositions are also disclosed.
    • 公开的组合物包含:(i)5-45wt。 丙烯腈 - 苯乙烯 - 丙烯酸酯(ASA)接枝共聚物或丙烯酸酯改性的ASA的%,(ii)2-82wt。 至少一种聚酯碳酸酯,其是包含与芳基化物嵌段交替的有机碳酸酯嵌段的嵌段聚酯碳酸酯,所述芳基化物嵌段包含衍生自至少一种1,3-二羟基苯部分和至少一种芳族二羧酸的酯结构单元, 的聚合度至少约4; 和(iii)5-60重量% 至少一种含有衍生自苯乙烯和丙烯腈的结构单元的刚性热塑性聚合物的% α-甲基苯乙烯和丙烯腈; α-甲基苯乙烯,苯乙烯和丙烯腈; 苯乙烯,丙烯腈,甲基丙烯酸甲酯; α-甲基苯乙烯,丙烯腈和甲基丙烯酸甲酯; 或α-甲基苯乙烯,苯乙烯,丙烯腈和甲基丙烯酸甲酯,或其混合物。 %值基于组分(i) - (iii)的重量,并且其中由组合物制成的模制品具有根据ISO 180测定的至少5千焦/平方米(kJ / m 2)的缺口伊佐德冲击强度 并且根据ISO 306在120℃下测定至少101℃的维卡B值。还公开了由所述组合物制成的制品。