Preform with internal barrier and internal layer of high...

Details Preform with internal barrier and internal layer of high... Preform with internal barrier and internal layer of high...

B - Operations, Transporting

65

D

190/26.1

B65D 1/02 (2006.01) B29C 45/16 (2006.01) B29C 49/00 (2006.01) B29C 49/22 (2006.01)

Patent

CA 1228307

20- PREFORM WITH INTERNAL BARRIER AND INTERNAL LAYER OF HIGH THERMAL STA- BILITY AND PRODUCTS MADE FROM THE SAME ABSTRACT OF THE DISCLOSURE 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 thermoplastic- having a high termperature thermal stability and is primar- ily selected from polycarbonates and acrylonitriles. This abstract forms no part of the specification of this appli- cation and is not to be construed as limiting the claims of the application.

469654

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