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    • 3. 发明申请
    • Crosslinkable methacrylic resin composition and transparent member
    • 可交联甲基丙烯酸树脂组合物和透明构件
    • US20060155085A1
    • 2006-07-13
    • US10559821
    • 2004-06-09
    • Osamu KohgoNoboru KawasakiMasahiro Enna
    • Osamu KohgoNoboru KawasakiMasahiro Enna
    • C08F4/44
    • C08F222/1006C08F220/12
    • A methacrylic resin monomer composition comprising at least one of each of the following (A) to (C): (A) a methyl methacrylate monomer and/or a syrup thereof; (B) a compound represented by the general formula (1); and (C) a radical initiator, wherein, in the formula, R1 and R3, and R2 and R4 represent hydrogen atoms or methyl groups at the same, respectively. The composition can provide a crosslinkable methacrylic resin which is improved in resin properties such as heat resistance, rigidity, low water absorption, chemical resistance and the like without deteriorating high transparency a PMMA originally has. A transparent member and an optical member composed of such a resin are also disclosed.
    • 包含以下(A)至(C)中的至少一个的甲基丙烯酸系树脂单体组合物:(A)甲基丙烯酸甲酯单体和/或其糖浆; (B)由通式(1)表示的化合物; 和(C)自由基引发剂,其中在下式中,R 1和R 3,以及R 2和R 4 分别表示相同的氢原子或甲基。 组合物可以提供可改善树脂性能如耐热性,刚性,低吸水性,耐化学性等的可交联的甲基丙烯酸树脂,而不会降低PMMA最初具有的高透明度。 还公开了一种透明构件和由这种树脂构成的光学构件。
    • 10. 发明授权
    • Production process of bisphenol compounds
    • 双酚化合物的生产工艺
    • US06316677B1
    • 2001-11-13
    • US09270016
    • 1999-03-16
    • Masahiro EnnaNaoshi NagaiToshiyuki Isaka
    • Masahiro EnnaNaoshi NagaiToshiyuki Isaka
    • C07C3912
    • C07C37/84C07C37/14C07C37/16C07C39/16C07C39/15
    • A process for the production of a bisphenol compound comprising: a step for reacting a phenolic compound (a) with at least one compound (b) selected from the group consisting of dialkenylbenzene compounds, bis(hydroxyalkyl)benzene compounds and (hydroxyalkyl)-alkenylbenzene compounds or at least one compound (c) selected from the group consisting of monoalkenylphenolic compounds and mono(hydroxyalkyl)phenolic compounds in the presence of an acidic catalyst to obtain a reaction mixture containing said bisphenol compound, a step for neutralizing the reaction mixture with an anion exchange resin, a step for removing a remaining phenolic compound from the reaction mixture to concentrate the neutralized reaction mixture, and a step for isolating the bisphenol compound from the resulting concentrated mixture. This process enables to produce a bisphenol compound, which is useful for preparing raw materials of thermoplastic polymers, surface-active agents and stabilizers.
    • 一种制备双酚化合物的方法,包括:使酚类化合物(a)与至少一种选自二苯基苯化合物,双(羟烷基)苯化合物和(羟基烷基) - 烯基苯的化合物(b)反应的步骤 化合物或至少一种选自单链烯基酚化合物和单(羟基烷基)酚类化合物的化合物(c),在酸性催化剂存在下,得到含有所述双酚化合物的反应混合物,将反应混合物与 阴离子交换树脂,用于从反应混合物中除去剩余的酚类化合物以浓缩中和的反应混合物的步骤,以及从所得浓缩混合物中分离双酚化合物的步骤。该方法能够生产双酚化合物,其可用于制备 热塑性聚合物的原料,表面活性剂和稳定剂。