申请人:KANEBO, LTD.
公开号:EP0731124A1
公开(公告)日:1996-09-11
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 the following general formula:
in a phosphorus atom content of 0.2-3.0 wt.% based on the total weight, and mouldings 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-temperaure polyester reaction system or during the molding of the polyester, is excellent in durability under repeated washing, light-fastness and whiteness, and does not deteriorate the properties inherent in thermoplastic polyester.
一种阻燃聚酯,由热塑性聚酯和至少一种阻燃组分组成,阻燃组分包含从以下通式所代表的三种组分中选出的含磷二羧酸或二醇单元:
在磷原子含量为 0.2-3.0 wt.其中 R 代表烷基、芳基或芳烷基;和 X 代表选自-R1COO-、OR2O-(-OC-A-COOR2O-)-a 和-(-OR2-)-bO-A-O-(-R2O-)-c 的基团,其中 R1 代表与磷原子键合的亚烷基,R2 代表 C2-C4 亚烷基,A 代表二价芳香族残基,a=1-10,b=0-5 和 c=0-5。该阻燃剂成分具有优异的耐热性,在将其引入高温聚酯反应体系的步骤中或在聚酯成型过程中不会升华,在反复洗涤、耐光性和白度方面具有优异的耐久性,并且不会降低热塑性聚酯的固有特性。