发明名称 |
Method of manufacturing plastic molding |
摘要 |
A method of manufacturing a plastic molding of a foamable thermoplastic raw material blank or preform which contains a foaming agent by high frequency voltage heating in a molding die assembly defining a molding cavity, wherein gas discharging openings which extend through the thickness of the blank or preform are preformed in the raw material blank or preform.
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申请公布号 |
US4720363(A) |
申请公布日期 |
1988.01.19 |
申请号 |
US19850762887 |
申请日期 |
1985.09.03 |
申请人 |
INOUE MTP KABUSHIKI KAISHA |
发明人 |
MAYUMI, TOHRU;ETO, ISAMU |
分类号 |
B29C44/00;B29C33/08;B29C37/00;B29C44/34;B29K105/04;B29L31/58;(IPC1-7):B29C35/12;B29C67/22;B29C33/10;B29B11/14 |
主分类号 |
B29C44/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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