发明名称 |
POLYVINYLIDENE CHLORIDE RESIN WRAP FILM AND PROCESS FOR PRODUCING THE SAME |
摘要 |
A wrap film having very stable physical properties wherein a sock liquid maintains the lubricating effect as an opening agent while a sock is stabilized and parison width changes and meandering are reduced to eliminate parison wrinkles is provided. Specifically, the wrap film is a wrap film made of a polyvinylidene chloride-based resin prepared by melt-extruding a polyvinylidene chloride-based resin from a die in tubular form, cooling the outer side of the extrudate by using a coolant while an aqueous solution of a liquid that is compatible with water and forms one-component is retained in the hollow portion of the extrudate, and inflating the solidified extrudate, wherein the liquid that is compatible with water and forms one-component has a concentration of 80 to 95% by mass in the aqueous solution, and the liquid is applied to the wrap film in amounts of 50 to 4,000 ppm. |
申请公布号 |
EP2123428(B1) |
申请公布日期 |
2011.11.02 |
申请号 |
EP20080721950 |
申请日期 |
2008.03.12 |
申请人 |
ASAHI KASEI CHEMICALS CORPORATION |
发明人 |
YATSUZUKA, MICHIHIRO;KOBAYASHI, HISAAKI |
分类号 |
B29C55/28;B29C47/88;B29K27/00;B29L23/00;B65D65/02 |
主分类号 |
B29C55/28 |
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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