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    PRODUCTION OF AROMATIC CARBONIC ACID ESTERS
    61.
    发明专利
    PRODUCTION OF AROMATIC CARBONIC ACID ESTERS 失效

    公开(公告)号：JPH05148189A

    公开(公告)日：1993-06-15

    申请号：JP35538991

    申请日：1991-11-26

    Applicant: UBE INDUSTRIES

    Inventor： HAMAMOTO SHUNICHI ,  KAKEYA NOBORU ,  FUJIMURA HITOSHI

    IPC: B01J23/10 ,  B01J27/053 ,  B01J27/10 ,  B01J27/25 ,  B01J31/12 ,  C07B61/00 ,  C07C68/06 ,  C07C69/96

    Abstract: PURPOSE:To obtain the subject compound useful as a raw material for polycarbonate resin, etc., in high selectivity and in high yield by subjecting a carbonic acid dialkyl ester, etc., to ester exchange reaction in the presence of a specific catalyst. CONSTITUTION:A carbonic acid dialkyl ester or a carbonic acid alkyl aryl ester is subjected to ester exchange reaction by using a catalyst which is pretreated by heating at 120-250 deg.C in the presence of 3-100 molar times a phenol and 1-20 molar times a carbonic acid dialkyl ester and/or a carbonic acid alkyl aryl ester of a catalyst as a treatment before reaction and comprises one or more compounds of element selected from rare earth elements such as Yb, Tm, Ho, Dy, Tb, Sm, Nd and Pr as the catalyst.

    ALPHA-(OMEGA-CYANOALKANOYL)-GAMMA-BUTYROLACTONE AND PREPARATION THEREOF
    64.
    发明专利
    ALPHA-(OMEGA-CYANOALKANOYL)-GAMMA-BUTYROLACTONE AND PREPARATION THEREOF 失效

    公开(公告)号：JPH0311046A

    公开(公告)日：1991-01-18

    申请号：JP14210289

    申请日：1989-06-06

    Applicant: UBE INDUSTRIES

    Inventor： YOSHIDA HIROSHI ,  KAKEYA NOBORU ,  KASHIWAGI MASANORI

    IPC: C07C253/30 ,  C07C51/38 ,  C07C59/01 ,  C07C255/31 ,  C07D307/33

    Abstract: NEW MATERIAL:An alpha-(omega-cyanoalkyanoyl)-gamma-butyrolactone of formula I (n is an integer of 7-11). EXAMPLE:alpha-(11-Cyanoundecanoyl)-gamma-butyrolactone. USE:An intermediate enabling to prepare an omega-hydroxy fatty acid (an intermediate of a large cyclic lactone perfume) from inexpensive and readily available raw materials in simple operations in a high yield by remarkably shortened three processes compared with the conventional methods. Also widely useful as an intermediate lactone. PREPARATION:The compound of formula I is prepared by reacting a compound of formula II with gamma-butyrolactone in the presence of a compound of formula: R'OM (R' is 1-4C alkyl; M is alkali metal). The above-mentioned perfume of formula V can be readily prepared from the compound of formula I through a compound of formula IV in a high yield.

    PRODUCTION OF OMEGA-HYDROXY-(OMEGA-3)-KETOFATTY ACID
    65.
    发明专利
    PRODUCTION OF OMEGA-HYDROXY-(OMEGA-3)-KETOFATTY ACID 失效

    公开(公告)号：JPH0311036A

    公开(公告)日：1991-01-18

    申请号：JP14210389

    申请日：1989-06-06

    Applicant: UBE INDUSTRIES

    Inventor： YOSHIDA HIROSHI ,  KAKEYA NOBORU ,  KASHIWAGI MASANORI

    IPC: B01J23/04 ,  C07B61/00 ,  C07C51/08 ,  C07C59/215

    Abstract: PURPOSE:To obtain the title compound industrially and advantageously by reacting an alpha-(omega-cyanoalkanoyl)-gamma-butyrolactone readily obtainable in high yield in the presence of an alkali metal hydroxide in water or a mixed solvent of water and an organic solvent. CONSTITUTION:An alpha-(omega-cyanoalkanoyl)-gamma-butyrolactone shown by formula I (n is 7-11) is reacted in the presence of an alkali metal hydroxide in water solvent or a mixed solvent of water and an organic solvent, hydrolyzed and decarboxylated to give an omega-hydroxy-(omega-3)-ketofatty acid shown by formula II. The compound shown by formula I is readily obtained in high yield by reacting an omega-cyanofatty acid ester shown by formula III (R is 1-4C alkyl) with gamma-butyrolactone in the presence of an alkali metal alcoholate. The formed compound shown by formula II is useful as an important intermediate for macrocyclic lactone-based perfume in the field of perfume industry.

    LIQUID PHOTOSENSITIVE POLYIMIDE RESIN COMPOSITION
    69.
    发明专利
    LIQUID PHOTOSENSITIVE POLYIMIDE RESIN COMPOSITION 失效

    公开(公告)号：JPS61238809A

    公开(公告)日：1986-10-24

    申请号：JP7920185

    申请日：1985-04-16

    Applicant: UBE INDUSTRIES

    Inventor： NAKANO TSUNETOMO ,  NAKAJIMA KOHEI ,  KAKEYA NOBORU

    IPC: C08F2/48 ,  C08F283/00 ,  C08F283/04 ,  C08F290/00 ,  C08F299/02 ,  G02F1/133 ,  G02F1/1337 ,  G03F7/038 ,  H01L21/027 ,  H01L21/30 ,  H01L21/312

    Abstract: PURPOSE:The titled liquid resin composition which can give a photocured film excellent in heat resistance, wet adhesion resistance, galvanic corrosion resistance, mechanical strength, etc., obtained by mixing a specified organic solvent- soluble photosensitive polyimide with an organosilane compound and an organic polar solvent. CONSTITUTION:The titled liquid resin composition is prepared by mixing 100pts. wt. organic solvent-soluble photosensitive polyimide (A) obtained by polymerizing a tetracarboxylic acid based on a biphenyltetracarboxylic acid with an aromatic diamine component based on an aromatic diamine of formula I (wherein Ar1 is a bivalent aromatic group and R1 is a photosensitive group-containing substituent), e.g., metharyloyloxyethyl 3,5-diaminobenzoate) with 1-25pts.wt. organosilane compound (b) of formula II (wherein R2 is H or methyl, R3 is methyl of ethyl and n is 0-3) and 200-3,000pts.wt. organic polar solvent (C) (e.g., N,N-dimethylformamide).

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