| 发明名称 |
METHOD OF FORMING TUBING FOR MAKING REINFORCED VALVED PLASTICBAGS |
| 摘要 |
The invention provides a method of forming plastic tubing and particularly multi-walled plastic bags wherein the seal area is strengthened by utilizing a plurality of layers of material in the seal area. |
| 申请公布号 |
AU574756(B2) |
申请公布日期 |
1988.07.14 |
| 申请号 |
AU19850038107 |
申请日期 |
1985.01.25 |
| 申请人 |
TWINPAK INC. |
发明人 |
PAUL E. AUBRY;JOSEF POKLUKAR |
| 分类号 |
B32B1/08;B29C53/38;B29C65/40;B31B1/62;B31B19/60;B31B39/00 |
主分类号 |
B32B1/08 |
| 代理机构 |
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