| 摘要 |
PURPOSE:To produce a polyester compsn. which is excellent in uniform dispersion of particles without allowing the reaggregation of them even if kept molten for a long time and an be molded into a film excellent in traveling properties, clarity, and abrasion resistance. CONSTITUTION:Cross-linked polymer particles are made into a slurry, which is mixed on a vented molding machine with an arom. polyester prepd. by copolymerizing at least one compd. having a sulfonic or metal sulfonate group with other raw materials, thus giving a polyester compsn. |
