| 摘要 |
PURPOSE:To provide the titled compsn. having improved sliding characteristics and impregnation-printability, by blending a crystallization promoter, a polyester elastomer and a salt of an olefin/(meth)acrylic acid copolymer with a polyester resin. CONSTITUTION:0-9pts.wt. crystallization promoter (A), 0-36pts.wt. polyester elastomer (B) and 1-36pts.wt. Na or K salt (C) of an olefin/(meth)acrylic acid copolymer are blended with 100pts.wt. polyester resin (D). As component D, those composed of at least 80wt% ethylene terephthalate or butylene terephthalate unit are preferred. Examples of component A are esters of benzoic and fatty acids. Examples of component B are elastomers composed of a block copolymer consisting of a residue of an arom. Polyester as a hard segment and a residue of a polyalkylene glycol as a soft segment. As component C, Na salt of ethylene/methacrylic acid copolymer is preferred. A key top part made of said compsn. has good feeling to touch. |
