发明公开
EP0408874A2 Process of molding thermoplastic sheet
失效
Verfahren zum Formen einer thermoplastischen Folie。
- 专利标题： Process of molding thermoplastic sheet
- 专利标题（中）： Verfahren zum Formen einer thermoplastischen Folie。
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申请号： EP90110311.9申请日： 1990-05-30
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公开(公告)号： EP0408874A2公开(公告)日： 1991-01-23
- 发明人: Matsuzawa, Kouzaburo, c/o Matsuzawa Co. Ltd. , Fujii, Atsushi, c/o Idemitsu Petrochemical Co.,Ltd
- 申请人： IDEMITSU PETROCHEMICAL CO., LTD.
- 申请人地址： 6-1, Shiba 5-chome Minato-ku, Tokyo JP
- 专利权人： IDEMITSU PETROCHEMICAL CO., LTD.
- 当前专利权人： IDEMITSU PETROCHEMICAL CO., LTD.
- 当前专利权人地址： 6-1, Shiba 5-chome Minato-ku, Tokyo JP
- 代理机构： Grünecker, Kinkeldey, Stockmair & Schwanhäusser Anwaltssozietät
- 优先权： JP185711/89 19890718; JP109485/90 19900424
- 主分类号： B29C51/22
- IPC分类号： B29C51/22 ; B29C51/06 ; B29C51/08 ; B29C51/18
摘要：
This process of molding a thermoplastic sheet can be used for blister packaging.
The process particularly includes the premolding step of bringing the sheet into close contact with the outer cylindrical surface of a molding drum, preheating the sheet and concurrently vacuum sucking the sheet into a cavity defined on the outer cylindrical surface of the drum; and the full-molding step of vacuum sucking the sheet and concurrently inserting the sheet into the cavity by means of a plug.
The process can well mold a thermoplastic sheet including a layer of polypropylene.
The process particularly includes the premolding step of bringing the sheet into close contact with the outer cylindrical surface of a molding drum, preheating the sheet and concurrently vacuum sucking the sheet into a cavity defined on the outer cylindrical surface of the drum; and the full-molding step of vacuum sucking the sheet and concurrently inserting the sheet into the cavity by means of a plug.
The process can well mold a thermoplastic sheet including a layer of polypropylene.
公开/授权文献
- EP0408874B1 Process of molding thermoplastic sheet 公开/授权日：1995-08-02
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