发明名称 Process for forming a plastic article
摘要 A process and apparatus for forming a laminated plastic article, especially a container. In one formation sequence, a flattened preform of desired perimeter configuration is formed, which preferably is multilayered, directly from thermoplastic materials. In another formation sequence, a preform is positioned in a thermoforming apparatus wherein, with edge portions of the preform is clamped and the midportions are mandrel-formed into a body having continuous integral side and bottom wall portions. This body is then trimmed and blow-molded to produce a desired product article. Residual portions of the starting preform can be trimmed away from the lip portions of the product article if desired.
申请公布号 US4265852(A) 申请公布日期 1981.05.05
申请号 US19790008605 申请日期 1979.02.01
申请人 NAT CAN CORP 发明人 SAUER, DONALD G.
分类号 B29C43/14;B29C43/36;B29C51/02;B29C51/04;B29C51/10;B29C51/14;B29C51/32;(IPC1-7):B29C17/04;B29D9/04 主分类号 B29C43/14
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