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发明公开
CN106977706A 无规共聚酯组合物及其制备方法和阻燃聚酯组合物及其制备方法 有权

无规共聚酯组合物及其制备方法和阻燃聚酯组合物及其制备方法
摘要：
本发明公开了一种无规共聚酯组合物及其制备方法和阻燃聚酯组合物及其制备方法。该无规共聚酯组合物包括：(1)聚酯A，所述聚酯A含有重复单元和重复单元-R-OCH2CH2CH2O-，其中，R为来自含磷阻燃单体的结构单元；(2)聚酯B，所述聚酯B含有结构—S—R1—S—，其中，R1为来自扩链剂的结构单元，S表示所述聚酯A；该无规共聚酯组合物中结构单元与R的摩尔比为70：30～99：1，R1的含量为结构单元和结构单元R的总和的0.1～3mol％；该无规共聚酯组合物的特性黏数为1.1dL/g～2.5dL/g。本发明提供的阻燃无规共聚酯可以提供该共聚酯以更好的阻燃性能，更好的耐熔滴性能。
摘要（英）：

The present invention discloses a random copolyester composition and a preparation method thereof, and a flame retardant polyester composition and a preparation method thereof. The random copolyester composition comprises: (1) a polyester A, wherein the polyester A contains a repeating unit defined in the specification and a repeating unit -R-OCH2CH2CH2O-, and R is a structural unit derived from a phosphorus-containing flame retardant monomer; and (2) a polyester B, wherein the polyester B contains a structure -S-R1-S-, R1 is a structural unit derived from a chain extender, S represents the polyester A, a molar ratio of the structural unit defined in the specification to R is 70:30-99:1, the content of R1 is 0.1-3 mol% of the sum of the structural unit defined in the specification and the structural unit R, and the intrinsic viscosity of the random copolyester composition is 1.1-2.5 dL/g. According to the present invention, the flame retardant random copolyester can provide good flame retardancy and good melting-droping resistance for the copolyester.

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