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    • 42. 发明专利
    • PRODUCTION OF CUMINIC ACID
    • JPS63264551A
    • 1988-11-01
    • JP9916987
    • 1987-04-22
    • WAKO PURE CHEM IND LTD
    • MIYAGAWA TSUTOMUNAWA HIROMIHIROSE SEIJI
    • C07C63/04C07C51/285
    • PURPOSE:To obtain the titled compound useful as a synthetic intermediate for pharmaceuticals, agricultural chemicals, liquid crystal compound, etc., in high quality without causing the problems of by-product and post-treatment, by oxidizing cuminaldehyde under alkaline condition using hydrogen peroxide as an oxidizing agent. CONSTITUTION:The objective compound of formula II can be produced by oxidizing cuminaldehyde of formula I using hydrogen peroxide as an oxidizing agent under alkaline condition (preferably using sodium hydroxide, potassium hydroxide, etc., to maintain the alkaline state). The above reaction is carried out in a hydrophilic organic solvent such as methanol or dioxane which may contain water. The hydrogen peroxide as an oxidizing agent is usually used as an aqueous solution having a concentration of about 10-40% and the amount of the peroxide is preferably about 1.5-2.5 times mol of the stoichiometric amount based on the cuminaldehyde. The reaction temperature is usually about 60-100 deg.C.
    • 45. 发明专利
    • Novel polymer and its production
    • 新型聚合物及其生产
    • JPS6128521A
    • 1986-02-08
    • JP14035684
    • 1984-07-06
    • Takeda Chem Ind LtdWako Pure Chem Ind Ltd
    • TANAKA MIKIAKIOGAWA TAIRYOMIYAGAWA TSUTOMUWATANABE TOSHIO
    • C08G63/00A61K47/34C08G63/06C08G63/82
    • PURPOSE: To obtain a novel polymer having a specified weight-average MW and a specified degree of dispersion and usable chiefly as a pharmaceutical base for medicines, by reacting lactic and/or glycolic acid in the presence or absence of an inorganic solid acid catalyst.
      CONSTITUTION: Lactic and/or glycolic acid are mixed together at an arbitrary ratio usually without using any solvent and directly polycondensed in the absence of any catalyst, i.e., without using any polymerization catalyst, or in the presence of an inorganic solid acid catalyst (e.g., acid clay), while the water formed is being removed by heating in vacuum. The reaction temperature and time are 100W150°C and 350W30mmHg, respectively. The water is removed while the temperature and the degree of vacuum are increased stepwise over a period of 2hr and then the reaction mixuture is polycondensed by dehydration at 150W 200°C/10W1mmHg for 10hr or longer. In this way, a polymer or copolymer having a weight-average MW ≥about 5,000 and a degree of dispersion of about 1.5W 2 can be obtained.
      COPYRIGHT: (C)1986,JPO&Japio
    • 目的:为了获得具有特定重均分子量和特定分散度的新型聚合物,主要用作药物的药用基质,通过乳酸和/或乙醇酸在无机固体酸催化剂存在或不存在下反应。 构成:乳酸和/或乙醇酸通常以任意比例混合在一起而不使用任何溶剂,并在没有任何催化剂的情况下直接缩聚,即不使用任何聚合催化剂,或在无机固体酸催化剂存在下(例如 ,酸性粘土),而形成的水通过在真空中加热而除去。 反应温度和时间分别为100-150℃和350-30mm.Hg。 除去水,同时在2小时内逐步增加温度和真空度,然后将反应混合物在150-200℃/ 10-1mm.Hg下脱水缩聚10小时以上。 以这种方式,可以获得重均分子量>约5,000,分散度约1.5-2的聚合物或共聚物。
    • 46. 发明专利
    • Manufacture of plastic optical fiber with small loss
    • 具有小损失的塑料光纤的制造
    • JPS58195806A
    • 1983-11-15
    • JP7888182
    • 1982-05-11
    • Nippon Telegr & Teleph Corp Wako Pure Chem Ind Ltd
    • KAINOU TOSHIKUNIJINGUUJI KANAMENARA SHIGEOTANAKA MIKIAKIMIYAGAWA TSUTOMUNAWA HIROMITAKEUCHI HIDEO
    • G02B1/04B29D11/00C08F4/04C08F20/14G02B6/00
    • B29D11/00663
    • PURPOSE:To obtain an optical fiber with small loss and superior light transmitting characteristics in the visible light region, by adding a chain transfer agent and an azo compound to a methyl methacrylate (MMA) monomer under tightly sealed conditions in the absence of oxygen, polymerizing the monomer, and melt-spinning the resulting MMA polymer to form a core fiber. CONSTITUTION:An MMA-base polymer is used as a core, and a sheath of a synthetic polymer having a lower refractive index than the core is formed around the core to manufacture a plastic optical fiber. At this time, an MMA monomer is purified in a tightly sealed system, and to the monomer in the absence of oxygen are added a chain transfer agent and an azo compound represented by the formula (where each of R1-R3 is straight or branched chain 1-5C alkyl or cycloalkyl, and the total number of C of R1-R3 is
    • 目的:为了获得可见光区域损耗小,透光性能优异的光纤,通过在不存在氧的情况下,在密闭条件下向甲基丙烯酸甲酯(MMA)单体中添加链转移剂和偶氮化合物,聚合 并将所得MMA聚合物熔融纺丝以形成芯纤维。 构成:使用MMA基聚合物作为芯,并且在芯周围形成具有比芯低的折射率的合成聚合物的护套以制造塑料光纤。 此时,MMA单体在紧密密封的系统中纯化,在不存在氧的情况下向单体加入链转移剂和由式(其中R 1 -R 3为直链或支链的每一个) 1-5C烷基或环烷基,并且R1-R3的总数为<= 7)为聚合物。 引发剂在密封条件下。 将得到的芯聚合物在密封状态下熔融纺丝以形成芯纤维。
    • 47. 发明专利
    • Preparation of mixture from azo compound
    • 从AZO化合物制备混合物
    • JPS58192857A
    • 1983-11-10
    • JP6827083
    • 1983-04-20
    • Wako Pure Chem Ind Ltd
    • YAMASHITA KAZUHIKOMIYAGAWA TSUTOMUSUGANO MASAHIKOMINAMII NOBUAKINAGAOKA JIYOUJI
    • C07C255/42C07C67/00C07C253/00C07C255/65
    • PURPOSE: To obtain the titled compound useful as a polymerization initiator having various decomposition rate constants by a highly industrially valuable method, by oxidizing a hydrazo compound containing a novel asymmetric hydrazo compound.
      CONSTITUTION: A mixture of hydrazo compounds containing an asymmetric hydrazo compound of formula I (R
      1 , R
      2 , R
      3 and R
      4 are alkyl, cycloalkyl, phenyl, etc.; R
      1 and R
      2 and/or R
      3 and R
      4 may form a ring except a symmetric compound having the same group consisting of R
      1 and R
      2 as the group consisting of R
      3 and R
      4 ) is oxidized with an oxidizing agent, e.g. halogen, or with oxygen in the presence of a metallic oxide as a catalyst in an aqueous medium or organic solvent system to give the aimed compound of formula II.
      EFFECT: The continuous polymerization can be carried out, and various polymerization temperatures can be selected for monomers. Thus, a polymer having new conventionally unobtainable properties is obtained.
      COPYRIGHT: (C)1983,JPO&Japio
    • 目的:通过高度工业上有价值的方法获得用作具有各种分解速率常数的聚合引发剂的标题化合物,通过氧化含有新的不对称氢化合物的水解化合物。 构成:含有式I的不对称氢化合物(R 1,R 2,R 3和R 4)的氢化合物的混合物是烷基,环烷基,苯基等; R 1和R 2 >和/或R 3和R 4可以形成环,除了具有与作为R 3和R 4的R 1和R 2相同的基团的对称化合物, )用氧化剂氧化,例如 卤素或氧气在金属氧化物作为催化剂存在下在水性介质或有机溶剂体系中反应,得到目的化合物II。 效果:可以进行连续聚合,可以选择单体的各种聚合温度。 因此,获得具有新的常规无法获得的性质的聚合物。
    • 48. 发明专利
    • Preparation of piperidinoalkanol and its acid addition salt
    • 哌啶醇及其酸添加盐的制备
    • JPS58177969A
    • 1983-10-18
    • JP6133782
    • 1982-04-13
    • Wako Pure Chem Ind Ltd
    • TANAKA MIKIAKIMIYAGAWA TSUTOMUNAKADA TAKASHI
    • C07D211/14C07D213/30
    • PURPOSE: To obtain the titled compound in high yield, by hydrogenating a novel quaternary ammonium salt as a raw material obtained from 4-(α-acetoxybenzyl) pyridine and a specific compound in the presence of an organic acid, its alkali metal salt and a catalyst.
      CONSTITUTION: 4-(α-Acetoxybenzyl)pyridine is reacted with a compound shown by the formula I (X is halogen) in a solvent to give a novel quaternary ammonium salt shown by the formula II, which is hydrogenated in the presence of a hydrogenating catalyst such as Pd/Cd, etc., an organic acid and its alkaline (earth)metal salt in a solvent at 40W60°C for 1W10hr at atmospheric pressure W50kg/cm
      2 hydrogen pressure under weakly acidic conditions, to give the desired compound shown by the formula III. Acetic acid, formic acid, propionic acid, etc. and their Na, K, Li, Mg salts are used as the organic acid and its alkaline(earth)metal salts.
      EFFECT: No corrosion of a device during reaction.
      USE: An improver for cerebral circulation metabolism.
      COPYRIGHT: (C)1983,JPO&Japio
    • 目的:为了获得高收率的标题化合物,通过在有机酸存在下氢化新的季铵盐作为由4-(α-乙酰氧基苄基)吡啶和特定化合物得到的原料,其碱金属盐和 催化剂。 构成:将4-(α-乙酰氧基苄基)吡啶与式I所示化合物(X为卤素)在溶剂中反应,得到式II所示的新型季铵盐,其在氢化存在下氢化 催化剂如Pd / Cd等,有机酸及其碱土金属盐在溶剂中在40-60℃下在大气压力-50kg / cm 2氢压下在弱酸性下进行1-10小时 条件,得到式III所示的所需化合物。 乙酸,甲酸,丙酸等及其Na,K,Li,Mg盐用作有机酸及其碱土金属盐。 影响:反应期间设备不会腐蚀。 用途:脑循环代谢改善剂。