发明名称 |
FORFARANDE FOR FILMBLASNING AV LINJERA TERMOPLASTMATERIAL |
摘要 |
A process at continuous blowing of film such linear thermoplastic materials which after that the plastic melt has left an annular die, when introducing gas to the inner of the tube, forms a neck part having an essentially constant diameter and then forms a rapidly expanding main bubble whereby the speed of the film at the upper part of the neck is kept above 15 m/min. |
申请公布号 |
SE8205912(A) |
申请公布日期 |
1984.04.19 |
申请号 |
SE19820005912 |
申请日期 |
1982.10.18 |
申请人 |
UNIFOS KEMI AB |
发明人 |
S * OHLSSON;R * WIDENBECK |
分类号 |
B29C49/00;B29C47/00;B29C55/00;B29C55/28;(IPC1-7):B29D7/02 |
主分类号 |
B29C49/00 |
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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