发明名称 Process for heat treating thermoplastic containers
摘要 A process for preparing a thermoplastic container including the steps of providing a biaxially oriented, crystallized precontainer having a first contained volume, and further crystallizing the precontainer by applying heat thereto while the precontainer is substantially unconstrained, and forming a deformed precontainer having a second contained volume. Deformation of the precontainer is controlled by controllably closing the precontainer prior to further crystallizing and while the precontainer remains substantially unconstrained to create a predetermined increased air pressure therein, and reshaping the deformed precontainer into a final container shape.
申请公布号 US5702665(A) 申请公布日期 1997.12.30
申请号 US19950381708 申请日期 1995.01.31
申请人 VALYI, EMERY I. 发明人 VALYI, EMERY I.
分类号 B29C49/18;B29C49/06;B29C49/64;B29K67/00;B29L22/00;(IPC1-7):B29C49/16 主分类号 B29C49/18
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