发明名称 |
Tear-resistant low set elastic film |
摘要 |
A tear-resistant low set elastic film, comprising:
a first layer and;
a second layer comprising a blend of polyethylene with metallocene catalysed polyethylene or metallocene catalysed polypropylene;
an elastic core layer bonded between said first layer and second layer;
first zones (105) in said film that have been activated and have sufficient elasticity to stretch at least 200% while maintaining a permanent set percent of no more than about 5%;
second zones (106) in said film that have not been activated and can stretch at least 200% while maintaining a permanent set percent of up to 5%;
wherein said first zones (105) in said film have a tear-strength as measured by an Elmendorf Tear Test of at least 30g; and
wherein said second zones (106) in said film have a tear-strength as measured by an Elmendorf Tear Test of at least 50g. |
申请公布号 |
EP1757440(A3) |
申请公布日期 |
2013.07.03 |
申请号 |
EP20060019825 |
申请日期 |
2001.02.07 |
申请人 |
TREDEGAR FILM PRODUCTS CORPORATION |
发明人 |
MIDDLESWORTH, JEFFREY A.;CREE, JAMES W.;BRUCE, STEPHEN D. |
分类号 |
B32B25/08;B29C55/02;B29C55/18;B32B3/28;B32B3/30;B32B5/14;B32B27/08;B32B27/30;B32B27/32;B32B27/40 |
主分类号 |
B32B25/08 |
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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