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    • 74. 发明专利
    • PRODUCTION OF POLYAMINOTRIAZINE
    • JPH07228696A
    • 1995-08-29
    • JP15122194
    • 1994-07-01
    • SUMITOMO CHEMICAL CO
    • KIMURA KENJITANAKA SHINYASASAKI MANJI
    • C08K5/3492C08G73/02C08G73/06C08K5/3477
    • PURPOSE:To produce the subject compound useful as a light stabilizer for synthetic resin by reacting dichlorotriazine with a specified diamine in the presence of a solid inorganic base in a water-immiscible aromatic solvent while azeotropically dehydrating and removing water. CONSTITUTION:This compound of formula III (X to X are H, formula II) can be produced by reacting 1 mol dichlorotriazine of formula I {Q is OR [R is a 1 to 12C alkyl, a 5 to 12C cycloalkyl, benzyl, piperidyl of formula II (R is H, OH, a 1 to 12C alkyl, etc.), etc.], NHR (R is a 1 to 12C alkyl, a 3 to 12C alkoxyalkyl, phenyl, etc.), etc.} with 1.0 to 1.3mol diamine of the formula XNHRNHX (R is a 2 to 12C alkylene which may be intercepted by O, etc.; X is formula II; X is H or formula II) in the presence of a solid inorganic base (preferably sodium hydroxide or potassium hydroxide) in a water- immiscible aromatic solvent (preferably xylene or ethylbenzene) in an amount of 0.1 to 1 time weight based on the diamine at >=the boiling point of the solvent under the atmospheric pressure while azeotropically dehydrating and removing the produced water.