| 摘要 |
PURPOSE:To provide easily and cheaply the transparent and heat resistant plastic vessel used for electronic range or the transparent vessel capable of heating sterilization and hot film. CONSTITUTION:In the manufacture of transparent and heat resistant vessels, the resin composition composed of at least one kind of polybutylene terephthalate resin of 1-100 pts.wt. and at least one kind of polyethylene terephthalate resin of 99-0 pts.wt. (except the homopolymer of poly-butylene terephthalate of 100 pts.wt.) is formed into a transparent sheet and obtained transparent sheet is preheated at, at least glass transition temperature of the resin composition and at the lower temperature than the cooling crystallization temperature thereof. Next, the resin composition is formed at, at least cooling crystallization temperature and at the lower temperature than the melting point of the resin with lower melting point in the used resins. |
