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    CURABLE RESIN COMPOSITION
    161.
    发明专利
    CURABLE RESIN COMPOSITION 失效

    公开(公告)号：JPS57167324A

    公开(公告)日：1982-10-15

    申请号：JP5300681

    申请日：1981-04-10

    Applicant: MITSUI TOATSU CHEMICALS

    Inventor： OOBA MASAYUKI ,  TSUBOI HIKOTADA ,  KOGA NOBUSHI

    IPC: C08G73/00 ,  C08G73/10 ,  C08G73/12

    Abstract: PURPOSE:A curable resin composition capable of providing cured products having excellent heat resistance and flexibility, prepared by mixing an aliphatic maleimide with an aliphatic amino compound. CONSTITUTION:A resin composition comprising an aliphatic maleimide represented by formulaI, wherein R1 is H, a 1-20C hydrocarbon group, a halogen atom, (R2)OC-, (R2)OCNH-, OH, cyano or nitro, (R2 is a 1-20C hydrocarbon group or its halogen-substituted group), Q is an l-valent aliphatic ether group and l>1, and an aliphatic amino compound represented by formula II. When a maleimide compound represented by formula III is added to the above composition, the mechanical strength, thermal degradation resistance, bonding strength and electrical properties are further improved because of a synergistic effect resulting from the interaction among the maleimide compound, the aliphatic amine and the aliphatic maleimide.

    THERMOSETTING RESIN COMPOSITION
    162.
    发明专利
    THERMOSETTING RESIN COMPOSITION 失效

    公开(公告)号：JPS56141315A

    公开(公告)日：1981-11-05

    申请号：JP4519980

    申请日：1980-04-08

    Applicant: MITSUI TOATSU CHEMICALS

    Inventor： TSUBOI HIKOTADA ,  KAWAMATA MOTOO ,  OOBA MASAYUKI ,  KOGA NOBUSHI

    IPC: C08G59/00 ,  C08G59/18 ,  C08G59/40 ,  C08G59/50 ,  C08J5/24

    Abstract: PURPOSE:To prepare the titled composition having excellent handleability, stability and curability, and giving a cured product having excellent heat resistance, by compounding a specific N-(alkenylphenyl)maleimide derivative and an epoxy compound. CONSTITUTION:The objective composition is prepared by compounding (A) a compound selected from an N-(alkenylphenyl)maleimide derivative of formula (R -R are H, 1-20C hydrocarbon, halogen, alkoxy, acyl, etc.; R together with R or R may form a ring; X is H, halogen, OH, alkoxy, acyl, etc.; m -m are positive integers and m +m +m =5), its oligomer or its polymer, and (B) an epoxy compound having one or more epoxy groups in a molecule. The compounding ratio of the component (A) to the component (B) is pref. 5:95-95:5 in weight. If necessary, an amino compound is added to the composition as the third component.

    PRODUCTION OF DINITRODIPHENYL ETHER
    163.
    发明专利
    PRODUCTION OF DINITRODIPHENYL ETHER 失效

    公开(公告)号：JPS5632439A

    公开(公告)日：1981-04-01

    申请号：JP10858779

    申请日：1979-08-28

    Applicant: MITSUI TOATSU CHEMICALS

    Inventor： TSUBOI HIKOTADA ,  KAWAMATA MOTOO ,  OOBA MASAYUKI ,  YAMAKAWA KOUICHI ,  KOGA NOBUSHI

    IPC: C07C205/38 ,  C07C67/00 ,  C07C201/00 ,  C07C201/12

    Abstract: PURPOSE:After the reaction between a halonitrobenzene, a nitrite salt and an alkali metal compound in a polar organic solvent, the reaction mixture is cooled, the precipitate is filtered off and the filtrate is recycled to the reaction step, thus producing the title compound used as an agricultural chemical with advantage. CONSTITUTION:A halonitrobenzene is made to react with a nitride salt and an alkali metal salt in a polar organic solvent. After completion of the reaction, the mixture is cooled and the precipitate is filtered ad the title compound is collected from the precipitate, meanwhile the filtrate is recycled to the reaction step. The precipitate is washed with a low-boiling solvent and the low-boiling solvent is distilled off from the washing and sent to the washing step and the residue mainly containing the polar organic solvent is also recycled to the reaction step. The process in accordance with the present invention gives the title compound of high quality at a relatively low temperature in a short time with high safety and permits the advantageous isolation and recovery from the reaction mixture.

    PREPARATION OF BISMALEIMIDE
    165.
    发明专利
    PREPARATION OF BISMALEIMIDE 失效

    公开(公告)号：JPS5513202A

    公开(公告)日：1980-01-30

    申请号：JP7317778

    申请日：1978-06-19

    Applicant: MITSUI TOATSU CHEMICALS

    Inventor： OOBA MASAYUKI ,  KAWAMATA MOTOO ,  TSUBOI HIKOTADA ,  KOGA NOBUSHI

    IPC: C07D207/452

    Abstract: PURPOSE:To obtain the title compound, a starting material of founctional resins, in high yield and without side reactions, by treating 4,4'-diaminodiphenylmethane and maleic anhydride with a lower coarboxylic acid, using a specific reaction auxiliary to inhibit the coagulation of the slurry. CONSTITUTION:4,4'-diaminodiphenylmethane of formula I and maleic anhydride are subjected to the ring opening reaction in the presence of an organic solvent and then to the dehydration cyclization by the addition of a Co compound catalyst, a tertiary amine and a lower carboxylic anhydride to give N,N'-(4,4'-Diphenylmethane)bismaleimide of formula II. In these processes, a compound of formula III (Y1-Y9=H, NH2, at least one of them is NH2) or formula IV (Y10=C1-5 alkyl, C1-5 alkoxy), e.g. 2,4'-diaminodiphenylmethane etc., is used as a reaction auxiliary. The chemical properties of the auxiliary are similar to the starting material, 4,4'- diaminodiphenylmethane.

    PREPARATION OF NN*HYDROXYPHENYL*MALEIMIDES
    166.
    发明专利
    PREPARATION OF NN*HYDROXYPHENYL*MALEIMIDES 失效

    公开(公告)号：JPS5466670A

    公开(公告)日：1979-05-29

    申请号：JP13090577

    申请日：1977-11-02

    Applicant: MITSUI TOATSU CHEMICALS

    Inventor： OOBA MASAYUKI ,  KAWAMATA MOTOO ,  TSUBOI HIKOTADA ,  KOGA NOBUSHI

    IPC: C07D207/452 ,  C07D207/44

    Abstract: PURPOSE:To prepare the title compound useful as a raw material of high performance rsins, and adhesives, in high yield and purity and in a short time, by hydrolyzing an ester of the title compound with an oxy-acid of sulfur or phosphorus, under specific temperature conditions. CONSTITUTION:N-(hydroxyphenyl)maleimides of formula II are prepared by (1) dissolving N-(hydroxyphenyl)maleimide ester of formula I(R is 1-7C alkyl, phenyl; R' is H, CH3, C2H5, F, C1, Br, I; n is an integer of 1-5) in an oxyacid of sulfur or phosphorus (sulfuric acid, thiosulfuric acid, sulfurous acid, orthophosphoric acid, orthophosphorous acid, and/or pyrophosphoric acid), and (2) pouring the solution into water therby hydrolyzing the esters. USE:Raw material of thermosetting resin, photo-snsitive resin, impregnating varnish, paint, and copper-clad laminate, etc.

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