| 发明名称 |
HEISSCHRUMPFBARE FOLIE |
| 摘要 |
<p>A heat shrinkable multi-layer packaging film having a layer of a hydrolyzed ethylene-vinyl acetate copolymer. Preferably, the film is formed by coextruding the hydrolyzed ethylene-vinyl acetate copolymer layer between two other polymeric layers, at least one of which is cross-linkable, and thereafter irradiating and orienting the multi-layer structure. The resulting film is heat shrinkable and has very low oxygen permeability.</p> |
| 申请公布号 |
DE2643498(A1) |
申请公布日期 |
1977.04.14 |
| 申请号 |
DE19762643498 |
申请日期 |
1976.09.28 |
| 申请人 |
W.R. GRACE & CO. |
发明人 |
D. BORNSTEIN,NORMAN;J. D'ENTREMONT,DONALD;S. WEINBERG,ALAN;G. SCHIRMER,HENRY;ZUSUN,JOSEPH |
| 分类号 |
B29C55/00;B29B7/00;B29C47/00;B29C47/06;B29C47/26;B29C49/00;B29C55/02;B29C61/06;B32B27/28;B32B27/32;B65D65/38;B65D65/40;(IPC1-7):B65D65/40;B32B27/08 |
主分类号 |
B29C55/00 |
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