发明名称 |
SEALABLE, MULTILAYER, COEXTRUDED PACKAGING FILM, ITS USE AND PROCESS FOR ITS PRODUCTIOIN |
摘要 |
<p>The invention relates to a sealable, multilayer, coextruded packaging film with high transparency and high tensile strength. The film is composed of at least one core layer A made from a polyolefin with high tensile strength together with low elongation, and of outer layers B and C arranged on the two sides. The core layer A comprises from 50 to 100 % by weight of cyclic olefin polymer (COC) having a T<SUB>g </SUB>of at least 60 ° C. The outer layers B and C may comprise at least one sealable polymer and one functional polymer. Intermediate layers may be arranged between layer A and layers B and C improving adhesion between layers. This film has a total thickness in the range from 20 to 200 mum, the core layer A making up from 5 to 60% of the total thickness of the film. The film is used in "flow-pack" packages produced on form-fill seal machines, or as a cover film on thermoformed blister packages or on cups (lidding).</p> |
申请公布号 |
EP1622765(A1) |
申请公布日期 |
2006.02.08 |
申请号 |
EP20040730973 |
申请日期 |
2004.05.04 |
申请人 |
TICONA GMBH |
发明人 |
GOERLITZ, WOLFRAM;GINOSSATIS, STAMMATIS |
分类号 |
B32B27/32;(IPC1-7):B32B27/32 |
主分类号 |
B32B27/32 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|