发明名称 |
Process for making a multilayered parison of thermoplastic material |
摘要 |
A method is disclosed for making a three layered parison for blow molding a biaxially oriented hollow article of thermoplastic material. One end portion of an extruded tubular body is heated to welding temperature and closed to a bottom by a forming step. The central layer of the multilayered body is removed from part of the end portion before the forming step takes place to insure that the central barrier layer of the body allows for an intimate welding together of the inner and outer layer. A similar operation is used in making the finish portion of a container at the opposite end of the tubular body.
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申请公布号 |
US4590028(A) |
申请公布日期 |
1986.05.20 |
申请号 |
US19850703862 |
申请日期 |
1985.02.21 |
申请人 |
KRUPP CORPOPLAST MASCHINENBAU GMBH |
发明人 |
ROSENKRANZ, OTTO;HORWEGE, CLAUS;HOENE, NORBERT |
分类号 |
B29B11/10;B29B11/14;B29C49/00;B29C49/02;B29C49/08;B29C49/22;B29C49/64;B29C57/10;B29L9/00;B29L22/00;(IPC1-7):B29C49/04 |
主分类号 |
B29B11/10 |
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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