发明名称 Method for making an expanded shoe sole
摘要 A method for making an expanded shoe sole includes the steps of (a) molding a first foamable material to form an unexpanded sole blank, and cooling the unexpanded sole blank to harden the unexpanded sole blank, (b) positioning the hardened unexpanded sole blank on a first mold, (c) heating a second mold to a molding temperature, (d) positioning assembly of the hardened unexpanded sole blank and the first mold in the second mold, (d) filling a second foamable material in the second mold prior to expansion and cross-linking of the hardened unexpanded sole blank, and (e) thermally molding the second foamable material and the hardened unexpanded sole blank in the second mold.
申请公布号 US2004021241(A1) 申请公布日期 2004.02.05
申请号 US20020213867 申请日期 2002.08.05
申请人 LIU KUN-CHUNG 发明人 LIU KUN-CHUNG
分类号 B29C44/08;B29D35/14;(IPC1-7):B29C44/12 主分类号 B29C44/08
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