| 发明名称 |
PROCESSO DE EMPACOTAMENTO EM QUE O DIOXIDO DE CARBONO E RETIDO NO INTERIOR DE UM PACOTE |
| 摘要 |
<p>A film of a copolymer of ethylene and vinyl alcohol retains carbon dioxide and may advantageously be used in packages containing carbon dioxide, e.g. for food susceptible to deterioration in the presence of oxygen. The copolymer film may be sandwiched between outer layers of polyethylene or of ethylene-vinyl acetate copolymer and may be bonded thereto by an ionomer resin or "Plexar" (RTM) copolymer adhesive.</p> |
| 申请公布号 |
BR8102528(A) |
申请公布日期 |
1982.01.12 |
| 申请号 |
BR19818102528 |
申请日期 |
1981.04.27 |
| 申请人 |
W R GRACE & CO |
发明人 |
ENGELMANN A;GILLIO TOS M;SCHIRMER H |
| 分类号 |
B65B55/04;B32B27/30;B65D65/02;B65D65/38;B65D81/20;(IPC1-7):B32B27/30;B65B25/00 |
主分类号 |
B65B55/04 |
| 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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