发明名称 |
Multilayer plastic container |
摘要 |
An improvement in a packaging multilayer plastic container comprising a gas-barrier interlayer of an ethylene/vinyl alcohol copolymer and an inner and an outer layer of a moisture-resistant thermoplastic resin such as a polyester sandwiching the interlayer. An intermediary layer comprising particles of a high water-absorbing resin dispersed in a resinous medium is provided between the gas-barrier layer and each of the inner and outer layers. Crosslinked polyacrylic acid or its salt or a vinyl alcohol/acrylic acid (salt) block copolymer, for example, may be used as the highly water-absorbing resin. Because of its high saturation moisture absorption at high temperatures, the highly water-absorbing resin is effective for preventing degradation of the gas-barrier property of the ethylene/vinyl alcohol copolymer during retorting.
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申请公布号 |
US4919984(A) |
申请公布日期 |
1990.04.24 |
申请号 |
US19880256146 |
申请日期 |
1988.10.07 |
申请人 |
TOYO SEIKAN KAISHA, LTD. |
发明人 |
MARUHASHI, YOSHITSUGU;ASAI, TAMIO;IIDA, SETSUKO;HIRATA, SADAO |
分类号 |
B29B17/00;B32B27/08 |
主分类号 |
B29B17/00 |
代理机构 |
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代理人 |
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地址 |
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