发明名称 |
Multilayer barrier structures, methods of making the same and packages made therefrom |
摘要 |
There is disclosed herein a multilayer structure for packaging bone-in meat comprising: an outer layer comprising linear low density polyethylene; a first polyamide layer comprising a blend of about 70% by weight to about 99% by weight semi-crystalline polyamide and about 1% by weight to about 30% by weight amorphous polyamide; a first tie layer disposed between said outer layer and said first polyamide layer; a barrier layer disposed adjacent said first polyamide layer wherein said barrier layer comprises ethylene vinyl alcohol copolymer having an ethylene content of about 27 mol % to about 42 mol %; a second polyamide layer disposed adjacent said barrier layer comprising a blend of about 70% by weight to about 99% by weight semi-crystalline polyamide and about 1% by weight to about 30% by weight amorphous polyamide; a sealant layer comprising linear low density polyethylene; and a second tie layer disposed between said sealant layer and said second polyamide layer, wherein the multilayer structure is biaxially oriented using a double bubble process whereby each layer of the multilayer structure is coextruded as a bubble, cooled, then reheated and oriented in both the longitudinal and transverse directions, and wherein the multilayer structure comprises a total orientation factor between about 8 and about 13. |
申请公布号 |
AU2004220068(B2) |
申请公布日期 |
2010.08.05 |
申请号 |
AU20040220068 |
申请日期 |
2004.03.05 |
申请人 |
PECHINEY EMBALLAGE FLEXIBLE EUROPE |
发明人 |
CHAD D. MUELLER;ROBERTO PASCUAL CASTELLANI;ROBERT J. BLEMBERG;MICHAEL J. DOUGLAS;DUANE H. BUELOW |
分类号 |
B65D81/34;A23B4/00;B32B27/08;B65B;F16B4/00 |
主分类号 |
B65D81/34 |
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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