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    PRODUCTION OF CAPROLACTAM
    131.
    发明专利
    PRODUCTION OF CAPROLACTAM 失效

    公开(公告)号：JP2001122851A

    公开(公告)日：2001-05-08

    申请号：JP29908999

    申请日：1999-10-21

    Applicant: UBE INDUSTRIES

    Inventor： KAKEYA NOBORU ,  TAKAI TSUTOMU

    IPC: C07D201/02

    Abstract: PROBLEM TO BE SOLVED: To provide a method for producing caprolactam from 1,1'- peroxydicyclohexylamine without requiring a complex isolating operation in a high yield. SOLUTION: This method for producing caprolactam is to react 1,1'- peroxydicyclohexylamine in a hydrocarbon solvent containing a salt of an element belonging to the IA and/or IIA group in the Periodic table and a tertiary phosphine oxide.

    PRODUCTION OF LACTAM
    132.
    发明专利
    PRODUCTION OF LACTAM 失效

    公开(公告)号：JP2001048862A

    公开(公告)日：2001-02-20

    申请号：JP22480499

    申请日：1999-08-09

    Applicant: UBE INDUSTRIES

    Inventor： KAKEYA NOBORU

    IPC: C07D201/02

    Abstract: PROBLEM TO BE SOLVED: To simply obtain a lactam useful as a raw material for nylon fibers and resins in a high yield by making ammonia act on a cycloalkanone, oxidizing the resultant reactional liquid with an organic peroxide and/or an inorganic peroxide and then treating the produced intermediate with an isomerization catalyst without isolating the produced intermediate. SOLUTION: Ammonia in an equivalent amount of preferably 1 to 100 times based on a cycloalkanone (preferably cyclohexanone and cyclododecanone) is made to act on the cycloalkanone and the resultant reactional liquid is then oxidized with 1.0-3.0 equivalents of an organic peroxide and/or an inorganic peroxide preferably at -10 to 40 deg.C for 1-5 h in a reactional solvent. The produced intermediate is further treated with an isomerization catalyst without isolating the produced intermediate preferably at 50-150 deg.C for 5 min to 2 h. Thereby, a lactam is obtained. The reaction of the cycloalkanone with the ammonia is preferably conducted at -10 to 40 deg.C under atmospheric pressure or under a reactional pressure of 3-100 atm and a reactional temperature of -10 to 100 deg.C under pressurization. The reactional time is 1-3 h.

    POLYESTER PREPOLYMER AND ITS PRODUCTION
    135.
    发明专利
    POLYESTER PREPOLYMER AND ITS PRODUCTION 失效

    公开(公告)号：JPS60250029A

    公开(公告)日：1985-12-10

    申请号：JP10791484

    申请日：1984-05-28

    Applicant: SUMITOMO CHEMICAL CO

    Inventor： SAEGUSA TAKEO ,  HORIKAWA JIROU ,  NIWANO MASAHIRO ,  KANAZAWA TAKENOBU

    IPC: C08G69/44 ,  C07D201/02 ,  C07D207/27 ,  C08G63/00 ,  C08G63/68 ,  C08G63/682 ,  C08G63/685 ,  C08G63/91 ,  C08G69/00

    Abstract: PURPOSE:To produce the titled prepolymer useful for conducting the anion block copolymerization of a lactam, by reacting an aliphatic polyester having OH groups on at least two terminals with an N-chlorocarbonyllactam. CONSTITUTION:An aliphatic polyester having OH groups on at least two terminals, of formula I [wherein R is at least two hydrocarbon residues, E is an aliphatic polyester residue of formula II (wherein R is a 2C or higher aliphatic residue, and n is a natural number)] or of formula III (wherein R and R are each a 2C or higher aliphatic residue, and m is a natural number), e.g., poly(epsilon- caprolactone), with an N-chlorocarbonyllactam of formula IV (wherein R is a 1-12C aliphatic hydrocarbon residue), e.g., N-chlorocarbonylcaprolactam) to produce a polyester prepolymer of formula IV (wherein R , R , E, and P are each as defined above). This polymer is mixed with a lactam or an anion polymerization catalyst and fed to a step of anion block copolymerization.

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