Mehrschichtiger Vorformling mit einer Schicht hoher thermischer Festigkeit.

摘要

This relates to providing a preform for use in blow molding containers which are suitable for use in conjunction with hot 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 thermoplastic having a high temperature 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.