| 摘要 |
PURPOSE:To provide titled film of improved weatherability, incorporated with specific benzotriazole compound. CONSTITUTION:The objective film can be obtained by incorporating (A) 100pts. wt. of polyphenylene sulfide (hereafter referred to PPS) constituted mainly by structural unit of formula I with (B) 0.01-10 (pref. 0.1-3)pts.wt. of a compound having in one molecule at least one benzotriazole group (of formula II), having a molecular weight >=360 (pref. >=460) (pref. one capable of absorbing rays of wave lengths ranging 350-400mmu) followed by film making. Said PPS film has a virtual density 1,330-1,390g/cc, being pref. 50-100,000 (pref. 70- 50,000) poises in appearent melt viscosity at 300 deg.C under a shear rate of 200sec<-1>. |
