发明名称 |
Breathable packaging film having enhanced thermoformability |
摘要 |
The present invention describes thermoformable coextruded film suitable for use in packaging applications having at least a first polymeric layer serving as an outermost exterior-film layer and comprising a cycloaliphatic polyester, an aromatic polyester or blends thereof; a second polymeric layer serving as a thermoforming-assist layer and comprising a polyolefin; and a third polymeric layer serving as an innermost exterior-film layer and comprising a heat-sealing polyolefinic material. The films of the present invention are oxygen-permeable in that they exhibit an oxygen transmission rate of between 2-1000 cm<SUP>3</SUP>/100 in<SUP>2</SUP>/24 h.atm.
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申请公布号 |
US2006105166(A1) |
申请公布日期 |
2006.05.18 |
申请号 |
US20040991038 |
申请日期 |
2004.11.17 |
申请人 |
LISCHEFSKI ANDREW J;NELSON KEVIN P |
发明人 |
LISCHEFSKI ANDREW J.;NELSON KEVIN P. |
分类号 |
B32B27/08;B32B27/30;B32B27/32;B32B27/36 |
主分类号 |
B32B27/08 |
代理机构 |
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地址 |
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