发明名称 |
HAFTENDE MEHRSCHICHTIGE FOLIE AUS POLYOLEFIN |
摘要 |
A wrap-packaging film laminate (1) having differential cling is provided having at least two layers, one which is an outer reverse layer (2) comprising a linear very low density ethylene copolymer (LVLDPE) having a critical density of less than about 0.915 g/cc which reverse layer contains a tackifier in an amount typically less than 6 percent by weight, which is sufficient to impart the desired level of cling, one of which comprises an obverse layer (3) of an olefin polymer or copolymer, such as a linear low density ethylene copolymer (LLDPE) which has a critical density of at least 0.916 g/cc which has little or no cling, and wherein the difference in density between the reverse layer and the obverse layer is at least 0.004 g/cc, the said differential cling properties being manifested in the higher level of cling of the LVLDPE reverse layer (2) as compared to that of the obverse layer (3). |
申请公布号 |
AT182855(T) |
申请公布日期 |
1999.08.15 |
申请号 |
AT19900907588T |
申请日期 |
1990.05.18 |
申请人 |
THE DOW CHEMICAL COMPANY |
发明人 |
HUFF, GEORGIA, M.;KOCH, KAELYN, C.;MURPHY, MARK, W.;THOMAS, CHRISTOPHER, J. |
分类号 |
B32B27/32;B65H81/00;C08L23/08;C08L23/20 |
主分类号 |
B32B27/32 |
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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