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17 条记录 (耗时 0.012 秒)

    METHOD FOR PRODUCING BIS( beta-EPOXYPROPYL)SULFIDE AND BIS(beta-EPOXYPROPYL)POLYSULFIDE
    1.
    发明公开
    METHOD FOR PRODUCING BIS( beta-EPOXYPROPYL)SULFIDE AND BIS(beta-EPOXYPROPYL)POLYSULFIDE 审中-公开
    用于生产BIS（BETA EPOXPROPYL）硫化物和UP（BETA-环氧丙基）多硫化物

    公开(公告)号：EP2865673A4

    公开(公告)日：2016-02-24

    申请号：EP13810392

    申请日：2013-06-21

    申请人： MITSUBISHI GAS CHEMICAL CO

    发明人： HORIKOSHI HIROSHI ,  TAKEUCHI MOTOHARU

    IPC分类号： C07D301/27 ,  C07D303/34

    CPC分类号： C07D303/34 ,  C07D301/27

    摘要： According to the present invention, a method for producing bis(²-epoxypropyl)sulfide or bis(²-epoxypropyl)polysulfide can be provided, which is characterized by comprising adding a metal compound selected from the group consisting of a metal hydrosulfide, a metal sulfide and a metal polysulfide to an epihalohydrin at -5 to 30°C in such a manner that the molar ratio of the epihalohydrin to the metal compound becomes 5 to 20 to thereby cause the reaction of the epihalohydrin with the metal compound. In a preferred embodiment, the epihalohydrin is epichlorohydrin, the metal hydrosulfide is sodium hydrosulfide or potassium hydrosulfide, the metal sulfide is sodium sulfide or potassium sulfide, and the metal polysulfide is sodium polysulfide or potassium polysulfide.

    COMPOSITION FOR OPTICAL MATERIAL AND OPTICAL MATERIAL OBTAINED THEREFROM
    3.
    发明公开
    COMPOSITION FOR OPTICAL MATERIAL AND OPTICAL MATERIAL OBTAINED THEREFROM 审中-公开
    光学材料及其光学材料的组合物

    公开(公告)号：EP2966105A4

    公开(公告)日：2016-10-12

    申请号：EP14761029

    申请日：2014-02-28

    申请人： MITSUBISHI GAS CHEMICAL CO

    发明人： KOSHIISHI EIJI ,  HORITA AKINOBU ,  TAKEUCHI MOTOHARU

    IPC分类号： C08G18/38 ,  G02B1/04

    CPC分类号： G02B1/041 ,  C08G18/3876 ,  G02B1/04 ,  C08L81/00

    摘要： With the present invention, it is possible to provide a composition for optical materials which comprises: a polythiol compound satisfying any one of the following i) to iii) i) the compound has an ammonium cation concentration of 0.1 to 400 µmol/kg, ii) the compound has a thiocyanic acid anion concentration of 0.1 to 600 µmol/kg, and iii) the compound has an ammonium cation concentration of 0.1 to 400 µmol/kg and a thiocyanic acid anion concentration of 0.1 to 600 µmol/kg, the product of the ammonium cation concentration and the thiocyanic acid anion concentration being 0.01 to 100,000 (µmol/kg) 2 ; and a polyisocyanate compound.

    POLYMERIZATION REGULATORS AND COMPOSITIONS FOR RESIN
    8.
    发明公开
    POLYMERIZATION REGULATORS AND COMPOSITIONS FOR RESIN 有权
    POLYMERISATIONSREGULIERER和用作树脂组合物

    公开(公告)号：EP1378535A4

    公开(公告)日：2006-04-05

    申请号：EP02713295

    申请日：2002-04-04

    申请人： MITSUBISHI GAS CHEMICAL CO

    发明人： TAMURA MASAKI ,  MATSUI TAKAHIRO ,  SHIMUTA MASANORI ,  YOSHIMURA YUICHI ,  TAKEUCHI MOTOHARU ,  HORIKOSHI HIROSHI ,  OKADA HIROYUKI

    IPC分类号： C07D331/02 ,  C08G75/08

    CPC分类号： C08G75/08 ,  C07D331/02

    摘要： Cured resins useful as optical material can be produced by polymerizing an episulfide compound having in the molecule one or more epithio structures represented by the general formula (2): (2) (wherein R5 to R8, Y, p and q are each as defined in the description) in the presence of one or more of the halides of Group 13 to 16 elements of the long-form periodic table and/or a polymerization regulator represented by the general formula (1): (1) (wherein R1 to R4, X and m are each as defined in the description). The use of the polymerization regulator enables polymerization of the episulfide compound at a properly controlled rate to thereby give a cured resin reduced in optical distortion, string, discoloration, and separation from mold during polymerization. Further, the use of the halide can inhibit the viscosity increase of the raw material composition in storage or casting, particularly that due to spontaneous polymerization after the addition of a polymerization catalyst.