Process for producing a 2-tertiary-alkyl substituted anthraquinones
    3.
    发明授权
    Process for producing a 2-tertiary-alkyl substituted anthraquinones 失效
    2-叔烷基取代蒽醌的制备方法

    公开(公告)号:US4305879A

    公开(公告)日:1981-12-15

    申请号:US124223

    申请日:1980-02-25

    CPC分类号: C07C46/02

    摘要: A process for producing a 2-tertiary-alkyl substituted anthraquinone, characterized by carrying out catalytic oxidation of a diphenylmethane type compound having the formula: ##STR1## wherein R.sub.1 and R.sub.2 are different from each other, and independently hydrogen or tertiary-alkyl having 4 or 5 carbon atoms with the proviso that one of R.sub.1 and R.sub.2 is hydrogen, and R.sub.3 is alkyl having 1-3 carbon atoms, in vapor phase in the presence of a catalyst containing vanadium and cerium is disclosed.

    摘要翻译: 一种制备2-叔烷基取代的蒽醌的方法,其特征在于进行具有下式的二苯基甲烷型化合物的催化氧化:其中R1和R2彼此不同,独立地是具有4个碳原子的氢或叔烷基 或5个碳原子,条件是在含有钒和铈的催化剂存在下,R1和R2中的一个是氢,R3是具有1-3个碳原子的烷基。

    Process for producing a 2-tertiary-alkyl substituted anthraquinone
    4.
    发明授权
    Process for producing a 2-tertiary-alkyl substituted anthraquinone 失效
    2-叔烷基取代蒽醌的制备方法

    公开(公告)号:US4036861A

    公开(公告)日:1977-07-19

    申请号:US696835

    申请日:1976-06-17

    CPC分类号: B01J23/22 C07C46/02

    摘要: A process for producing a 2-tertiary-alkyl substituted anthraquinone, characterized by carrying out catalytic oxidation of a diphenylmethane type compound having the formula ##STR1## wherein R.sub.1 and R.sub.2 are different from each other, and independently hydrogen or tertiary-alkyl having 4 and 5 carbon atoms with the proviso that one of R.sub.1 and R.sub.2 is hydrogen, and R.sub.3 is alkyl having 1-3 carbon atoms, in vapor phase in the presence of a catalyst comprising vanadium oxide is disclosed.

    摘要翻译: 一种制备2-叔烷基取代的蒽醌的方法,其特征在于进行催化氧化具有式I的二苯基甲烷型化合物,其中R 1和R 2彼此不同,独立地是具有4个碳原子的氢或叔烷基 公开了在包含氧化钒的催化剂存在下,R1和R2中的一个是氢,R3是具有1-3个碳原子的烷基。

    Core-shell polymer, resin composition and molded articles thereof
    5.
    发明授权
    Core-shell polymer, resin composition and molded articles thereof 失效
    核 - 壳聚合物,树脂组合物及其模塑制品

    公开(公告)号:US5206299A

    公开(公告)日:1993-04-27

    申请号:US851223

    申请日:1992-03-16

    摘要: There is disclosed a core-shell polymer which comprises:(a) a core comprising an elastomeric polymer having a glass transition temperature of not more than -30.degree. C. in an amount of 50-90% by weight;(b) an intermediate layer comprising a polymer having a glass transition temperature of not less than 60.degree. C. in an amount of 5-30% by weight; and(c) a shell comprising an aromatic vinyl polymer in an amount of 5-30% by weight,each based on the core-shell polymer, and the total of the core, the intermediate layer and the shell amounting to 100% by weight.Preferably, the core is composed of polybutadiene or polyalkyl acrylate wherein the alkyl has 2-8 carbon atoms, the intermediate layer of polymethyl methacrylate and the shell of polystyrene.A high impact polyphenylene ether resin composition is further disclosed which contains such a core-shell polymer as an impact modifier.

    摘要翻译: 公开了一种核 - 壳聚合物,其包含:(a)包含50-90重量%的玻璃化转变温度不超过-30℃的弹性体聚合物的芯; (b)包含玻璃化转变温度不低于60℃的聚合物的中间层,其量为5-30重量%; 和(c)包含5-30重量%的芳族乙烯基聚合物的壳,各自基于核 - 壳聚合物,并且芯,中间层和壳的总量为100重量% 。 优选地,芯由聚丁二烯或其中烷基具有2-8个碳原子的聚丙烯酸烷基酯,聚甲基丙烯酸甲酯的中间层和聚苯乙烯壳组成。 进一步公开了含有作为抗冲改性剂的核 - 壳聚合物的高冲击性聚苯醚树脂组合物。