THERMOPLASTIC POLYESTER FILM

摘要

PURPOSE:To prepare a film having a striped pattern (unevenness) on its surface without using any special apparatus by compounding a thermoplastic polyester resin with a specific arom. polyamide in a specified ratio and allowing the resulting compsn. to undergo melt extrusion molding. CONSTITUTION:A compsn. comprising 100pts.wt. thermoplastic polyester resin and 1-100pts.wt. arom. polyamide obtd. by reacting terephthalic and/or isophthalic acid with an aliph. diamine is allowed to undergo melt extrusion molding to form a film. As the polyester resin, a polybutylene terephthalate is esp. pref. in terms of film-forming properties and mechanical strengths.