High refractive index triazine monomer
    51.
    发明申请
    High refractive index triazine monomer 失效
    高折射率三嗪单体

    公开(公告)号:US20020158352A1

    公开(公告)日:2002-10-31

    申请号:US09925479

    申请日:2001-08-10

    Inventor: Eun Kyoung Kim

    CPC classification number: C07D251/10 C07D251/46

    Abstract: The present invention relates to a triazine type monomer, and more particularly, to a 1,3,5-triazine type monomer characterized by having at least one amine group and at least two sulfur atoms, which can be used in manufacturing transparent optical resins having excellent refractive index, surface hardness and absorbance as well as an improved workability and the ability to control a wide range of refractive index according to the change in composition by the monomer itself at room temperature or by polymerizing the monomer with a comonomer in the presence of an organic solvent or an initiator.

    Abstract translation: 本发明涉及三嗪型单体,更具体地说,涉及一种具有至少一个胺基和至少两个硫原子的1,3,5-三嗪型单体,其可用于制造具有 优异的折射率,表面硬度和吸光度以及改进的可加工性以及根据单体本身在室温下的组成变化来控制宽范围的折射率的能力,或通过在共聚单体存在下将共聚单体聚合 有机溶剂或引发剂。

    METHOD FOR PRODUCING EPSILON-CAPROLACTAM

    公开(公告)号:JP2001213861A

    公开(公告)日:2001-08-07

    申请号:JP2000024890

    申请日:2000-02-02

    Abstract: PROBLEM TO BE SOLVED: To produce ε-caprolactam with an industrially advantageous simple method comprising small number of steps in high conversion of each step, high productivity and decreased energy consumption under a mild reaction condition with simple operation and equipment essentially without producing ammonium sulfate as a by-product while dispensing with a reaction reagent necessitating a complicate process for preparation. SOLUTION: ε-Caprolactam is produced by using benzene as a starting raw material and successively subjecting the material to partial hydrogenation, nitration, partial hydrogenation and vapor-phase rearrangement reaction.

    59.
    发明专利
    失效

    公开(公告)号:JP2001500123A

    公开(公告)日:2001-01-09

    申请号:JP51250998

    申请日:1997-08-28

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