RARE EARTH ELEMENT-IRON PERMANENT MAGNET

    公开(公告)号:JPH02125405A

    公开(公告)日:1990-05-14

    申请号:JP28865088

    申请日:1988-11-15

    Applicant: SHOWA DENKO KK

    Abstract: PURPOSE:To prevent variation in dimensional accuracy and deterioration in magnetic properties for a long period of time by treating the surface of a rare earth element-iron permanent magnet with coating agent whose effective ingredient are titanium compounds fluorine-containing alkyl groups. CONSTITUTION:A rare earth element-iron permanent magnet is of permanent magnet powder or molded form for plastic magnet after iron-rare earth element, iron-transmission metal-rare earth element and boron are added and sintered and molded in a predetermined shape. Coating agent contains titanium compounds whose effective ingredients are fluorine-containing alkyl groups represented by general formulae I-III, VII, VIII and hydrated condensation polymer of compound represented by a formula I. In the formula Rf is 4-16C fluorine-containing alkyl group, R1 is H or 1-10C alkyl group, l is integer number of 1-4, R2 is formula CaF2a+1-Q-, where a is integer number of 4-20, and Q is coupling group of CaF2a+1- and oxygen. m is integer number of 1-2, n is integer number of 1-3, A is 1-12C alkyl group, B is 1,2 or 1,3-glycol group or oxycarbonic acid group, using solution or emulsion of these compounds.

    FLUORINE-CONTAINING SILICATE COATING AGENT

    公开(公告)号:JPH0222372A

    公开(公告)日:1990-01-25

    申请号:JP17080688

    申请日:1988-07-11

    Applicant: SHOWA DENKO KK

    Abstract: PURPOSE:To obtain a fluorine-containing coating agent suitable for imparting the surface of an inorganic or organic material substrate with water and oil repellency, stain-proofing property, non-tackiness, lubricity, etc., by using a fluorine-containing silicate having a specific structure as an active component of the agent. CONSTITUTION:The objective coating agent contains a fluorine-containing silicate of formula I [Rf is perfluoroalkyl of formula II (b is 4-20); the group of formula III is alkylene bonding the perfluoroalkyl group Rf and oxygen; a is 1-10; R' is 1-6C alkyl; n is 1-4] (e.g., the compound of formula IV) as an active component. The above silicate may be used after hydrolysis and polycondensation.

    FLUORINE-CONTAINING TITANATE COATING AGENT

    公开(公告)号:JPH01287179A

    公开(公告)日:1989-11-17

    申请号:JP11453788

    申请日:1988-05-13

    Applicant: SHOWA DENKO KK

    Abstract: PURPOSE:To provide the title coating agent used for imparting the base surface of inorganic and organic materials high water-and-oil repellency, antifouling nature, nontackiness, lubricity, etc., comprising a specific fluorine-contg. pyrophosphoric titanate as an active ingredient. CONSTITUTION:The objective coating agent comprising at least one kind of fluorine-contg. pyrophosphoric titanate, as an active ingredient, of formula I {R is polyfluoroalkyl group expressed by CaH2a+1-Q- [Q is linking group mutually connecting polyfluoro group, CaH2a+1- and oxygen, being, -CbH2b-, -CONR' CbH2b-, -SO2NR'CbH2b-, or of formula II (b is 1-10; R' is 1-6C alkyl, H); a is 4-20]; m is 1-3; A is 1-12C alkyl}.

    PREPARATION OF DIACYL DERIVATIVE OF CHOLIC ACID ESTER

    公开(公告)号:JPS5794000A

    公开(公告)日:1982-06-11

    申请号:JP16967380

    申请日:1980-12-03

    Applicant: SHOWA DENKO KK

    Inventor: TAGUCHI ISAMU

    Abstract: PURPOSE:To prepare the titled diacyl derivative useful as an intermediate of a gallstone-dissolving agent, economically, by reacting a cholic acid ester with a lower aliphatic carboxylic acid anhydride in the presence of a catalyst comprising a pyridine derivative having a specific substituent group or a (substituted) isoquinoline. CONSTITUTION:The objective 3,7-diacyloxy-12-hydroxy-cholanic acid ester is prepared by reacting the cholic acid ester of formula (R is lower alkyl) with a lower aliphatic carboxylic acid anhydride (e.g. acetic anhydride) in the presence of a catalyst comprising (A) a pyridine derivative having at least one electron- donative substituent group on the nucleus other than the 2- and 6-positions (e.g. 3,5-dimethyl-pyridine) or (B) isoquinoline which may have at least one substituent group on the nucleus other than the 1- and 3-positions, at room temp. -70 deg.C for 4-30hr, pref; in a solvent such as benzene. The amount of the catalyst is pref. 0.01-1pt.wt. of (A) or 0.001-0.01pt.wt. of (B) per 1pt.wt. of cholic acid methyl ester.

    PREPARATION OF DELTA11 UNSATURATED STEROID

    公开(公告)号:JPS5793998A

    公开(公告)日:1982-06-11

    申请号:JP16913980

    申请日:1980-12-02

    Applicant: SHOWA DENKO KK

    Inventor: TAGUCHI ISAMU

    Abstract: PURPOSE:To prepare the titled compound useful as an intermediate of a gallstone-dissolving agent, at a low cost, by the desulfonation reaction of a steroid compound containing an alkylsulfonyl group in the presence of a phase-transfer catalyst such as a specific metal salt, a quaternary ammonium salt, etc. CONSTITUTION:The objective steroid compound can be prepared by the desulfonation reaction of a steroid compound having an alkylsulfonyl group at 12- position in the presence of a phase-transfer catalyst consisting of (A) one or more compounds selected from halides and (haogeno) lower carboxylic acid salts of alkali or alkaline earth metals, (B) one or more compounds selected from carbonates, bicarbonates, monohydrogenphosphates, sulfites, hydroxides and amide salts of alkali or alkaline earth metals, and (C) one or more compounds selected from quaternary ammonium salts, quaternary phosphonium salts and crown ethers, pref. in a solvent at 110-130 deg.C for 4-18hr. The amounts of the catalyst components (A), (B) and (C) are pref. 2-0.5pts., 0.5-0.05pt., and 0.1-0.01pt. per 1pt. of the starting steroid compound, respectively.

    PREPARATION OF DELTA11 UNSATURATED STEROID

    公开(公告)号:JPS56122399A

    公开(公告)日:1981-09-25

    申请号:JP2522880

    申请日:1980-03-03

    Applicant: SHOWA DENKO KK

    Abstract: PURPOSE:To obtain the titled compound useful as a raw material for a dissolving agent of gallstone industrially advantageously, by desulfonating a steroid having an alkyl sulfone group at 12 position in the presence of an alkali metal halide, etc. and a quaternary ammonium salt, etc. CONSTITUTION:A steroid compound, e.g., 3alpha,7alpha-diactoxy-12alpha-methyloxycholanic acid methyl ester shown by the formula I, having an alkyl sulfone group at 12 position is desulfonated in the coexistence of both at least one of a halide of an alkali metal or alkaline earth metal, lower carboxylate, or halogeno lower carboxylate (e.g., potassium acetate, etc.) and at least one of quaternary ammonium salt, quaternary phosphonium salt or crown ether (e.g., trimethyl ammonium chloride, etc.) under heating, to give the desired compound shown by the formula II.

    Intermediate of polymerizable compound and production method thereof
    50.
    发明专利
    Intermediate of polymerizable compound and production method thereof 有权
    可聚合化合物的中间体及其生产方法

    公开(公告)号:JP2007145818A

    公开(公告)日:2007-06-14

    申请号:JP2006290649

    申请日:2006-10-26

    Abstract: PROBLEM TO BE SOLVED: To provide a polymer-based light-emitting material for producing an organic light-emitting device having a high light-emitting efficiency, capable of being formed in a large area and enabling mass-production.
    SOLUTION: Iridium (III) bis(2-(2,4-difluorophenyl)pyridinate)-substituted picolinate derivatives is a polymerizable compound precursor obtained by reacting a binuclear complex of iridium with a substituted-picolinic acid derivative. A novel polymerizable compound provides a novel polymer containing an iridium complex portion, and an organic light-emitting device capable of emitting light at a high efficiency and being formed in a larger area and suitable for mass-production can be obtained by using the novel polymer as a light-emitting material of an organic light-emitting device.
    COPYRIGHT: (C)2007,JPO&INPIT

    Abstract translation: 解决的问题:提供一种聚合物基发光材料,用于制造具有高发光效率的有机发光器件,能够大面积地形成并且能够批量生产。 铱(III)双(2-(2,4-二氟苯基)哒嗪)铱(III))取代的吡啶甲酸酯衍生物是通过使铱的双核络合物与取代的吡啶甲酸衍生物反应获得的可聚合化合物前体。 一种新型的聚合性化合物提供含有铱络合物部分的新颖的聚合物,能够通过使用新的聚合物获得能够高效率地发光并形成较大面积并适于批量生产的有机发光装置 作为有机发光装置的发光材料。 版权所有(C)2007,JPO&INPIT

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