| 发明名称 |
Heat sealable, multi-ply polypropylene film |
| 摘要 |
A heat sealable and shrinkable, coextruded, multi-layer packaging film having a propylene homopolymer base layer and a skin layer of a preferred blend of 60% to 80% propylene-ethylene copolymer with propylene homopolymer provides a sealing temperature range of up to 30 DEG C.
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| 申请公布号 |
US4439478(A) |
申请公布日期 |
1984.03.27 |
| 申请号 |
US19820368598 |
申请日期 |
1982.04.15 |
| 申请人 |
W. R. GRACE & CO., CRYOVAC DIVISION |
发明人 |
FERGUSON, DANIEL F.;STRINGER, FREDERICK D.;ESAKOV, MICHAEL D. |
| 分类号 |
B32B27/32;B65D65/40;(IPC1-7):B32B27/08 |
主分类号 |
B32B27/32 |
| 代理机构 |
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