发明名称 |
Food package, retort lidding, and coextruded film therefor |
摘要 |
A seal layer for use in heat sealed containers, especially retortable polymer containers. A semirigid or rigid packaging container with a multilayer laminate heat sealed to a tray flange, the laminate having a barrier layer and the lidding being easily opened by cohesive failure of a layer containing as elastomer. The elastomer is preferably PIB in a heat seal film layer on a polypropylene tray.
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申请公布号 |
US5273797(A) |
申请公布日期 |
1993.12.28 |
申请号 |
US19900464812 |
申请日期 |
1990.01.16 |
申请人 |
EXXON CHEMICAL PATENTS INC. |
发明人 |
HAZELTON, DONALD R.;LOCKE, LAWRENCE K. |
分类号 |
B32B25/08;B32B27/32;B65D65/40;B65D81/34;(IPC1-7):B32B27/08 |
主分类号 |
B32B25/08 |
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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