| 摘要 |
<p>A lubricated aromatic polyester copolymer composition comprises an aromatic polyester copolymer of a mixture of terephthalic acid and isophthalic acid or derivative thereof at a molar ratio of terephthalic acid group to isophthalic acid group of 9:1 to 1:9 and a bisphenol having the formula <IMAGE> (I) wherein -X- represents -O-, -S-, -SO2-, -CO-, or either of an alkylene group or an alkylidene group which can be substituted by a hydrocarbon group having one or more carbon atom or a halogen atom or a halohydrocarbon group; and R1, R2, R3, R4, R1', R2', R3', and R4' respectively represent hydrogen atom, a halogen atom, hydroxyl group or a hydrocarbon group; and a specific lubricant comprising more than 70 wt. % of n-paraffin having carbon atoms of 16 to 40 at a ratio of 0.05 to 5 wt. % based on said polyester copolymer.</p> |
