发明名称 |
COEXTRUDED MULTILAYER CYCLIC OLEFIN POLYMER FILMS OR SHEET HAVING IMPROVED MOISTURE VAPOR BARRIER |
摘要 |
<p>Disclosed are coextruded multilayer film or sheet comprising at least four alternating layers of layer materials A and B, the layers having an average layer thickness of from 1 to 3000 nm, wherein layer material A comprises a cyclic olefin polymer, layer material B comprises an ethylene polymer and, based on layer materials A and B, one layer material is from 5 to 95 volume percent of the film or sheet and the other makes up the balance. In some of the embodiments the layers of A and B have a total thickness of at least 40 nm and the disclosed film or sheet can also comprise outer skin layers C and optional inner layers D which comprise from 5 to 95 volume percent of the film or sheet.</p> |
申请公布号 |
EP2797741(A1) |
申请公布日期 |
2014.11.05 |
申请号 |
EP20120818740 |
申请日期 |
2012.12.21 |
申请人 |
DOW GLOBAL TECHNOLOGIES LLC |
发明人 |
DOOLEY, JOSEPH;JENKINS, STEVEN, R.;LEE, PATRICK, CHANG DONG |
分类号 |
B32B7/00;B32B27/32 |
主分类号 |
B32B7/00 |
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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