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    METHOD FOR MODIFYING ACRYLIC RESIN
    3.
    发明专利
    METHOD FOR MODIFYING ACRYLIC RESIN 失效

    公开(公告)号：JPH06240025A

    公开(公告)日：1994-08-30

    申请号：JP2405493

    申请日：1993-02-12

    Applicant: UBE INDUSTRIES

    Inventor： NISHIYAMA MASAO ,  TANAKA SHOICHI ,  TANIOKA RIKIO

    IPC: C08J7/00

    Abstract: PURPOSE:To raise the thermal decomposition initiation temperature by heating an acrylic resin consisting of methyl methacrylate and a specified comonomer under specified conditions. CONSTITUTION:An acrylic resin which consists of at least 90wt.% methyl methacrylate and at most 10wt.% comonomer causing neither crosslinking nor cyclization under the modification conditions and which is freed from a radical initiator used for the polymerization or its residue and unreacted monomers, such as methyl methacrylate, as much as possible is heated at 200-350 deg.C for at least 10min in an inert gas atmosphere or after dissolving in a solvent such as toluene or tetrahydrofuran.

    METHOD FOR REMOVING ADSORPTION OF BETA2-MICRO GLOBULIN
    5.
    发明专利
    METHOD FOR REMOVING ADSORPTION OF BETA2-MICRO GLOBULIN 失效

    公开(公告)号：JPH01181874A

    公开(公告)日：1989-07-19

    申请号：JP310088

    申请日：1988-01-12

    Applicant: UBE INDUSTRIES

    Inventor： SAKAMOTO EIKICHI ,  TANIOKA RIKIO

    IPC: A61K31/765 ,  A61K9/18 ,  A61M1/36 ,  A61P7/00 ,  A61P13/02 ,  A61P15/00 ,  B01J20/26

    Abstract: PURPOSE:To efficiently adsorb and remove beta2-micro globulin created in the blood of a patient to execute the dialysis for a long time by using an adsorbent composed by coupling a special compound through the compound having two isocyanate groups or above in a molecule for a water insoluble high polymer compound having a hydroxyl group. CONSTITUTION:Hexamethylenediisocyanate is preferable as bifunctional isocyanate or polyethylene glycol is preferable as the compound shown by an expression (I) while the absorption activity of the obtained adsorbent is higher. For the water insoluble high polymer compound having a hydroxyl groop, the compound in the drying condition is used. The reaction is executed by suspending a water insoluble high polymer compound having the hydroxyl group to an organic solvent, adding the compound having two isocyanate groups or above in the molecule and agitating at 30-110 deg.C. The reactant is inhaled and filtered, cleaned repeatedly with water and ordinarily, preserved in the wet condition in a physiological salt water. In the expression, R1, R2, R3 and R4 are mutually independent, express the alkari group of a hydrogen atom or the number 1-3 of carbon and an (n) shows the integer of 10-200.

    PRODUCTION OF BIS@(3754/24)HYDROXYPHENYL)METHANES
    6.
    发明专利
    PRODUCTION OF BIS@(3754/24)HYDROXYPHENYL)METHANES 失效

    公开(公告)号：JPH0687775A

    公开(公告)日：1994-03-29

    申请号：JP24028692

    申请日：1992-09-09

    Applicant: UBE INDUSTRIES

    Inventor： INAGAKI TORU ,  TANIOKA RIKIO ,  ZUSHI KAZUO

    IPC: B01J27/186 ,  C07B61/00 ,  C07C37/20 ,  C07C37/72 ,  C07C39/16

    Abstract: PURPOSE:To obtain a bis(hydroxyphenyl)methane having excellent corrosion resistance and useful for epoxy resin, etc., in high efficiency, selectivity and yield by reacting a phenolic compound with an aliphatic aldehyde, etc., under specific condition and recovering and reusing heteropolyacid, etc. CONSTITUTION:A phenolic compound (e.g. phenol) is made to react with an aliphatic aldehyde (e.g. formaldehyde) or an aromatic aldehyde (e.g. benzaldehyde) in a mixed solvent composed of water and an inert solvent such as benzene in the presence of a heteropolyacid or its water-soluble salt (e.g. phosphotungstic acid). The bis(hydroxyphenyl)methane compound of formula (R is H, alkyl or halogen; R is H, alkyl, aryl or aralkyl) is recovered from the organic layer of the reaction mixture and the heteropolyacid or its water-soluble salt is recovered from the aqueous phase and reused in the reaction of the phenolic compound with the aldehyde.

    THERMOPLASTIC AROMATIC POLYIMIDE COMPOSITION
    7.
    发明专利
    THERMOPLASTIC AROMATIC POLYIMIDE COMPOSITION 失效

    公开(公告)号：JPH03166258A

    公开(公告)日：1991-07-18

    申请号：JP30337789

    申请日：1989-11-24

    Applicant: UBE INDUSTRIES

    Inventor： ASHITAKA HIDEKAZU ,  TANIOKA RIKIO ,  SUEHIRO TSUTOMU

    IPC: C08K5/523 ,  C08L79/08

    Abstract: PURPOSE:To obtain a thermoplastic aromatic polyimide composition improved in thermal stability and viscosity stability in melt molding by blending an aromatic polyimide with a specific amount of a specified organic phosphoric acid ester. CONSTITUTION:A thermoplastic aromatic polyimide composition obtained by blending (A) 100 pts.wt. thermoplastic aromatic polyimide, prepared by polymerizing an aromatic tetracarboxylic acid component with an aromatic diamine component and an aromatic dicarboxylic acid component and imidating the resultant polymer and having preferably 0.25-1.0, preferably 0.30-0.70 reduced viscosity with (B) 0.002-5 pts.wt., preferably 0.1-2 pts.wt. organic phosphoric acid ester, e.g. triphenyl phosphate or tris(4-tert-butylphenyl) phosphate, expressed by the formula (X is H, hydroxyl group, 1-8C aliphatic hydrocarbon group, 6-18C aromatic hydrocarbon group or 1-8C alkoxy).

    THERMOPLASTIC AROMATIC POLYIMIDE
    8.
    发明专利
    THERMOPLASTIC AROMATIC POLYIMIDE 失效

    公开(公告)号：JPH03166227A

    公开(公告)日：1991-07-18

    申请号：JP30337689

    申请日：1989-11-24

    Applicant: UBE INDUSTRIES

    Inventor： ASHITAKA HIDEKAZU ,  TANIOKA RIKIO ,  SUEHIRO TSUTOMU

    IPC: C08G73/10

    Abstract: PURPOSE:To obtain the title thermoplastic polymer having excellent mechanical strength and molding and processing properties by polymerizing a specific aromatic diamine with aromatic tetracarboxylic acid and aromatic o-dicarboxylic acid anhydride and imidating. CONSTITUTION:(A) An aromatic tetracarboxylic acid containing preferably >=80mol% biphenyltetracarboxylic acid, (B) an aromatic diamine containing preferably >=80mol% bis[(4-aminophenoxy)phenyl]sulfone shown by the formula and (C) an aromatic o-dicarboxylic acid (e.g. phthalic acid) anhydride are dissolved in an organic polar solvent such as dimethyl sulfoxide preferably at 100-300 deg.C to give the objective polymer having 0.25-1.0 reduced viscosity.

    POLYAMIDE EXCELLENT IN ORIENTING PROPERTIES
    10.
    发明专利
    POLYAMIDE EXCELLENT IN ORIENTING PROPERTIES 失效

    公开(公告)号：JPH11286544A

    公开(公告)日：1999-10-19

    申请号：JP428799

    申请日：1999-01-11

    Applicant: UBE INDUSTRIES

    Inventor： TANIOKA RIKIO ,  TANAKA SHOICHI ,  OKUSHITA YOJI

    IPC: C08J5/18 ,  B29C55/12 ,  B29K77/00 ,  B29L7/00 ,  C08G69/36 ,  D01F6/60 ,  D01F6/80

    Abstract: PROBLEM TO BE SOLVED: To obtain a polyamide excellent in properties for a serialized biaxial orientation and a mechanical strength. SOLUTION: This polyamide consisting essentially of diamines comprising an alicyclic diamine having one cyclohexane ring and dicarboxylic acids comprising a 6-22C branched type saturated carboxylic acid has a preferable composition of 50-99.95 mol.% lactam and/or aminocarboxylic acid, 0.025-25 mol.% diamine and 0.025-25 mol.% dicarboxylic acid, and regulated so that 5-100 mol.% of the diamines may consist of an alicyclic diamine, and 5-100 mol.% of the dicarboxylic acids may consist of a 6-22C branched type saturated carboxylic acid.

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