申请人:SUMITOMO CHEMICAL COMPANY, LIMITED
公开号:EP0261869A2
公开(公告)日:1988-03-30
A synthetic resin composition comprises 55 to 98 wt% of a polyarylate prepared from a mixture of isophthalic and terephthalic acids or a derivative of either (molar ratio 1:9 to 9:1) and a bisphenol of formula:
wherein -X- is -O-, -SO₂-, -CO-, -S-, an alkylene group or an alkylidene group; R₁, R₂, R₃, R₄, Rʹ₁ , Rʹ₂ , Rʹ₃ and Rʹ₄ are each hydrogen, halogen or a hydrocarbon group,
and 45 to 2 wt% of a heat-fusible wholly aromatic copolyester which is a thermotropic liquid crystal, of formula
wherein d, e and f are each not zero but a positive integer that satisfies the conditions that d:e is 1.0 to 10.0 and e:f is 0.90 to 1.10; n is 0 or 1; and the substituents on each aromatic ring are para- or meta to one another.
The two components are blended,e.g. by melt mixing.
Additives can be included, such as fibers or fillers.
The polyarylate-based resin composition of the invention can provide molded articles, films, or fibers having high strength and elastic modulus, good melt-flow characteristics, and high surface gloss.
一种合成树脂组合物包含 55 至 98 wt%由间苯二甲酸和对苯二甲酸的混合物或二者的衍生物(摩尔比 1:9 至 9:1)和式中的双酚制备的聚芳酸酯:
其中-X-是-O-、-SO₂-、-CO-、-S-、亚烷基或亚烷基;R₁、R₂、R₃、R₄、Rʹ₁、Rʹ₂、Rʹ₃和Rʹ₄各自是氢、卤素或烃基、
和 45 至 2 wt%的热熔全芳香族共聚聚酯,它是热致性液晶,其式为
其中 d、e 和 f 均不为零,而是满足 d:e 为 1.0 至 10.0 和 e:f 为 0.90 至 1.10 条件的正整数;n 为 0 或 1;每个芳香环上的取代基互为对位或元对位。
通过熔融混合等方法将两种成分混合。
可加入添加剂,如纤维或填料。
本发明的聚芳酸酯基树脂组合物可以提供具有高强度和弹性模量、良好的熔体流动特性和高表面光泽度的成型制品、薄膜或纤维。