| 发明名称 |
Method for folding a plastic sheet. |
| 摘要 |
<p>A method for folding a plastic sheet (1), which comprises folding a plastic sheet and heat-treating the folded portion (13) of the plastic sheet by heating the folded portion by ultrasonic vibration (21), followed by cooling.</p> |
| 申请公布号 |
EP0330228(A2) |
申请公布日期 |
1989.08.30 |
| 申请号 |
EP19890103299 |
申请日期 |
1989.02.24 |
| 申请人 |
MITSUBISHI PLASTICS INDUSTRIES LIMITED |
发明人 |
HASHIMOTO, TADASHI MITSUBISHI PLASTICS IND. LTD. |
| 分类号 |
B29C35/02;B29C37/00;B29C43/02;B29C53/04;B29C53/06;B29C53/84 |
主分类号 |
B29C35/02 |
| 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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