| 发明名称 |
PROCESS FOR PREPARING A FLEXIBLE PACKAGING MATERIAL |
| 摘要 |
This invention is directed to a process for preparing self-supporting laminate films having low permeability to gases and to the films prepared by said process, all as described hereinafter.
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| 申请公布号 |
US3668038(A) |
申请公布日期 |
1972.06.06 |
| 申请号 |
USD3668038 |
申请日期 |
1970.02.02 |
| 申请人 |
W.R. GRACE & CO. |
发明人 |
CHARLES C. KIRK;THOMAS E. FERINGTON;RAZMIC S. GREGORIAN |
| 分类号 |
B32B27/00;(IPC1-7):B32B33/00 |
主分类号 |
B32B27/00 |
| 代理机构 |
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