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    • 18. 发明专利
    • Production of flame-retardant
    • 阻燃剂的生产
    • JPS6185453A
    • 1986-05-01
    • JP20653884
    • 1984-10-02
    • Hitachi Chem Co Ltd
    • NANAUMI KENYOSHIMURA YUKIOKUMAKURA YOSHITOSHI
    • C09K21/12C07F9/14C08K5/00C08K5/52C08L7/00C08L21/00C08L23/00C08L51/00C08L51/02C08L67/00C08L101/00
    • PURPOSE: To prepare a novel flame-retardant having improved heat resistance, containing phosphorus and bromine in a molecule, by reacting a phosphoric ester with a halogen-containing aromatic alcohol.
      CONSTITUTION: (A) A phosphoric ester shown by the formula I (R
      1 WR
      3 are alkyl, or aryl such as triphenyl phosphate containing preferably an aromatic group and (B) a halogen-containing aromatic alcohol, preferably 2,4,6- tribromophenyl-β-hydroxyethyl ether shown by the formula II or formula III (R and R' are H, or alkyl; X and X' are bromine or chlorine; m+n=5; Y is group shown by the formula IV or formula V; q and n are 1W10) in a ratio of the component A/B of 1/0.1W1/2 are subjected to ester exchange reaction in the presence of 0.1W5wt% basic catalyst (base on total amounts of the components A and B) in the absence of a solvent under heating at 130W170°C, to give the aimed flame-retardant.
      COPYRIGHT: (C)1986,JPO&Japio
    • 目的:通过使磷酸酯与含卤素的芳族醇反应,制备分子中含有磷和溴的耐热性提高的新型阻燃剂。 (A)由式I表示的磷酸酯(R1-R3是烷基或芳基,例如优选芳基的三苯基磷酸酯和(B)含卤素的芳族醇,优选2,4,6-三溴苯基 (R和R'为H或烷基; X和X'为溴或氯; m + n = 5; Y为式IV或式V所示的基团) ; q和n为1-10),组分A / B为1 / 0.1-1 / 2的比例在0.1-5wt%碱性催化剂存在下进行酯交换反应(基于组分总量 A和B)在130-170℃加热下不溶于溶剂,得到目标阻燃剂。