Thermoplastic Plastic Moulding Compositions with Improved Optical Properties
    1.
    发明申请
    Thermoplastic Plastic Moulding Compositions with Improved Optical Properties 审中-公开
    具有改进光学性能的热塑性塑料成型组合物

    公开(公告)号:US20080207830A1

    公开(公告)日:2008-08-28

    申请号:US12088759

    申请日:2006-09-25

    IPC分类号: C08L51/00

    摘要: The present invention relates to thermoplastic molding compositions, comprising a mixture composed of (A) from 30 to 69% by weight, based on the entirety of components (A), (B) and (C), of a methyl methacrylate polymer, (B) from 30 to 69% by weight, based on the entirety of components (A), (B) and (C), of a copolymer, obtainable via polymerization of a vinylaromatic monomer and of a vinyl cyanide, and (C) from 1 to 40% by weight, based on the entirety of components (A), (B) and (C), of a graft copolymer, obtainable from (C1) from 60 to 90% by weight, based on (C), of an agglomerated core based on a 1,3-diene, (C2) from 5 to 20% by weight, based on (C), of a first graft shell composed of a vinylaromatic monomer, of an alkyl methacrylate, and, if appropriate, of a crosslinking monomer, and (C3) from 5 to 20% by weight, based on (C), of a second graft shell composed of an alkyl(meth)acrylate polymer, with the proviso that the ratio by weight of (C2) to (C3) is in the range from 2:1 to 1:2, and it is inventively significant here that the core (C1) has monomodal particle size distribution, the average particle size D50 of the core (C1) (determined by the method mentioned in the description) is in the range from 300 to 400 nm, and the difference between the refractive index (nD-C) of the entire component (C) and the refractive index (nD-AB) of the entire matrix of components (A) and (B) is in the range from 0.003 to 0.008, each of the refractive indices being measured by the methods mentioned in the description, and also to a process for preparation of these molding compositions, to their use, and to the moldings obtainable therefrom.

    摘要翻译: 本发明涉及热塑性模塑组合物,其包含基于甲基丙烯酸甲酯聚合物(A),(B)和(C)的全部(A),(B)和(C)的(A)30至69重量% B)基于通过乙烯基芳族单体和乙烯基氰的聚合可获得的共聚物的组分(A),(B)和(C))的总量的30至69重量%,和(C) 1〜40重量%,基于(C)60〜90重量%(C),(C)可以由(C1)得到的接枝共聚物的成分(A),(B)和(C) 基于(C)5-20重量%的由乙烯基芳族单体组成的第一接枝壳,甲基丙烯酸烷基酯和(如果合适的话)的基于1,3-二烯的聚集的核心, 的交联单体,和(C3)基于(C)5-20重量%的由(甲基)丙烯酸烷基酯聚合物组成的第二接枝壳,条件是(C2)的重量比 至(C3)的比例在2:1至1:2的范围内 在本发明中,芯(C1)具有单峰粒度分布,芯(C1)的平均粒径D <50>(由说明书中提及的方法确定)在 300至400nm的范围,以及整个组分(C)的折射率(n-D-C-C)与折射率(n> D < 组分(A)和(B)的整个基质的AB)在0.003至0.008的范围内,每个折射率通过说明书中提及的方法测量,并且还涉及制备这些模塑组合物的方法 ,使用,以及可从其获得的模制品。

    Halogen-free flame resistant polystyrol moulding materials
    3.
    发明授权
    Halogen-free flame resistant polystyrol moulding materials 失效
    无卤阻燃聚苯乙烯成型材料

    公开(公告)号:US06124385A

    公开(公告)日:2000-09-26

    申请号:US308334

    申请日:1999-05-19

    摘要: A thermoplastic molding composition comprises, in each case based on the total of A to E,at least 3% by weight, but not more than 30% by weight, of a polyphenylene ether A,at least 10% by weight, but not more than 65% by weight, of an impact-modified styrene polymer B,at least 30% by weight of a (standard) styrene polymer C which is not impact-modified,from 0.05 to 5% by weight of a free-radical generator D,from 1 to 20% by weight of a phosphorus-containing flame retardant E, in particular an organophosphorus compound, such as triphenyl phosphate or triphenyl phosphine oxide.

    摘要翻译: PCT No.PCT / EP97 / 06274 Sec。 371日期1999年5月19日 102(e)日期1999年5月19日PCT 1997年11月11日PCT PCT。 公开号WO98 / 23674 日期1998年6月4日热塑性模塑组合物在每种情况下都包含基于A至E的总量,至少3重量%但不超过30重量%的聚苯醚A,至少10重量% 重量,但不超过65重量%的冲击改性苯乙烯聚合物B,至少30重量%的不受冲击改性的(标准)苯乙烯聚合物C的0.05至5重量% 自由基产生剂D,1至20重量%的含磷阻燃剂E,特别是有机磷化合物,例如磷酸三苯酯或三苯基氧化膦。