FLAME RETARDANT POLYESTER
    3.
    发明公开
    FLAME RETARDANT POLYESTER 失效
    阻燃聚酯树脂

    公开(公告)号:EP0731124A4

    公开(公告)日:1996-02-08

    申请号:EP93904329

    申请日:1993-02-22

    CPC分类号: D01F1/07 C08G63/6926 D01F6/84

    摘要: A flame-retardant polyester comprising a thermoplastic polyester and, introduced thereinto, at least one flame-retardant component comprising phosphorus-containing dicarboxylic acid or diol units selected from among three components represented by general formula (I) in a phosphorus atom content of 0.2-3.0 wt.% based on the total weight, and moldings thereof, such as fiber, film and resin moldings, wherein R represents alkyl, aryl or aralkyl; and X represents a group selected from among -R1COO-, OR2O-(-OC-A-COOR2O-)-a and -(-OR2-)-bO-A-O-(-R2O-)-c, wherein R1 represents alkylene bonded to the phosphorus atom, R2 represents C2-C4 alkylene, A represents a divalent aromatic residue, a = 1-10, b = 0-5, and c = 0-5. The flame-retardant component has excellent heat resistance, does not sublime in the step of introducing the same into a high-temperature polyester reaction system or during the molding of the polyester, is excellent in durability under repeated washing, light-fasteness and whiteness, and does not deteriorate the properties inherent in thermoplastic polyester.