Thermoplastic molding compounds
    5.
    发明授权
    Thermoplastic molding compounds 失效
    热塑性模塑料

    公开(公告)号:US06380306B1

    公开(公告)日:2002-04-30

    申请号:US09269338

    申请日:1999-03-25

    IPC分类号: C08L900

    CPC分类号: C08L51/04 C08L2666/02

    摘要: Thermoplastic molding materials of A) from 72 to 88.5% by weight of a thermoplastic styrene or &agr;-methylstyrene polymer or copolymer, B) from 10 to 20% by weight of a first graft polymer having an average particle diameter d50 from 400 to 600 nm, having an n-butyl acrylate based rubber-elastic graft core, and a styrene or &agr;-methylstyrene (co)polymer graft shell, C) from 1.5 to 8% by weight of a second graft polymer having a bimodal particle size distribution, the average particle diameter d50 being from 25 to 200 nm and from 350 to 550 nm, having a butadiene or isoprene polymer or copolymer based rubber-elastic graft core, and a styrene or &agr;-methylstyrene (co)polymer graft shell, D) from 0 to 50% by weight of conventional additives, where the graft polymers B) and C) constitute from 11.5 to 25% by weight of components A), B) and C), and components A) to D) amount to 100% by weight.

    摘要翻译: A)热塑性成型材料(A)为72〜88.5重量%的热塑性苯乙烯或α-甲基苯乙烯聚合物或共聚物,B)10〜20重量%的平均粒径d50为400〜600nm的第一接枝聚合物, 具有丙烯酸正丁酯基橡胶弹性接枝芯和苯乙烯或α-甲基苯乙烯(共)聚合物接枝壳,C)1.5至8重量%的具有双峰粒径分布的第二接枝聚合物,平均 粒径d50为25〜200nm,350〜550nm,具有丁二烯或异戊二烯聚合物或共聚物基橡胶弹性接枝芯,苯乙烯或α-甲基苯乙烯(共)聚合物接枝壳,D)为0〜 50重量%的常规添加剂,其中接枝聚合物B)和C)构成组分A),B)和C)的11.5至25重量%,组分A)至D)占100重量%。

    Preparation of rubber-modified molding materials by means of groups
which are incorporated in the rubber and form free radicals on thermal
decomposition
    8.
    发明授权
    Preparation of rubber-modified molding materials by means of groups which are incorporated in the rubber and form free radicals on thermal decomposition 失效
    通过加入橡胶中的基团并通过热分解形成自由基来制备橡胶改性的成型材料

    公开(公告)号:US5910553A

    公开(公告)日:1999-06-08

    申请号:US836309

    申请日:1997-05-12

    CPC分类号: C08F265/04 C08L51/04

    摘要: In the preparation of a rubber-modified molding material, in a first stage, a first mixture (A) contains at least one alkyl acrylate or methacrylate (a) of the formula (I) ##STR1## where R.sup.1 is hydrogen or methyl and R.sup.2 is alkyl of 1 to 32 carbon atoms, at least one first monomer (b) which forms free radicals on thermal decomposition and, if required, a second monomer (c) or a plurality thereof is polymerized, preferably with free radicals, to give a rubber (B),in a second stage, the resulting rubber (B) is mixed with a third monomer (d) or a plurality thereof, preferably dissolved or swollen therein, to form a second mixture (C), andin a third stage, the second mixture (C) is polymerized with free radicals to give the rubber-modified molding material (D).

    摘要翻译: PCT No.PCT / EP95 / 04474 371日期1997年5月12日 102(e)日期1997年5月12日PCT提交1995年11月14日PCT公布。 公开号WO96 / 15166 日期:1996年5月23日在橡胶改性成型材料的制备中,在第一阶段中,第一混合物(A)含有至少一种式(I)的丙烯酸烷基酯或甲基丙烯酸烷基酯(a),其中R1是氢或甲基, R2是1至32个碳原子的烷基,至少一个在热分解时形成自由基的第一单体(b),如果需要的话,第二单体(c)或多个第一单体(b)优选与自由基聚合,得到 橡胶(B),在第二阶段中,将得到的橡胶(B)与其中溶解或膨胀的第三单体(d)或多个混合以形成第二混合物(C),并在第三阶段 阶段,第二混合物(C)与自由基聚合,得到橡胶改性的成型材料(D)。

    Thermoplastic molding materials stable to thermal oxidation
    9.
    发明授权
    Thermoplastic molding materials stable to thermal oxidation 失效
    热塑性成型材料对热氧化稳定

    公开(公告)号:US06479572B1

    公开(公告)日:2002-11-12

    申请号:US08959373

    申请日:1997-10-28

    IPC分类号: C08K551

    摘要: Thermoplastic molding materials contain A) from 5 to 97.9% by weight of a polyphenylene ether B) from 1 to 93.9% by weight of a vinylaromatic polymer C) from 1 to 50% by weight of an elastomeric polymer D) from 0.1 to 10% by weight of a stabilizer mixture comprising d1) at least one sterically hindered phenol, d2) at least one phosphonite and d3) at least one alkyl aryl phosphite, E) from 0 to 70% by weight of a polyamide and F)from 0 to 60% by weight of further additives and processing assistants, the sum of the percentages by weight of components A) to F) being 100%.

    摘要翻译: 热塑性成型材料含有5至97.9重量%的聚苯醚B)1至93.9重量%的乙烯基芳族聚合物C)1至50重量%的弹性体聚合物D)0.1至10重量%的 稳定剂混合物,其包含d)至少一种空间位阻酚,d2)至少一种亚膦酸酯和d3)至少一种烷基芳基亚磷酸酯,E)0-70%重量的聚酰胺和F)0-60%重量的其它添加剂 和加工助剂,组分A)至F)的重量百分比之和为100%。