PREFORM WITH INTERNAL BARRIER AND INTERNAL LAYER OF HIGH THERMAL STABILITY AND PRODUCTS MADE FROM THE SAME

摘要

20- PREFORM WITH INTERNAL BARRIER AND INTERNAL LAYER OF HIGH THERMAL STABILITY AND PRODUCTS MADE FROM THE SAME This relates to providing a preform for use in blow molding containers which are suitable for use in conjunction with hot products and products which must be subjected to pasteurization. A preform is injection molded in stages and normally will have five layers including two interior barrier layers surrounding a central core. The core is to be formed of a thermoplastichaving a high termperature thermal stability and is primarily selected from polycarbonates and acrylonitriles. This abstract forms no part of the specification of this application and is not to be construed as limiting the claims of the application.