发明名称 |
GAS BARRIER HEAT-SHRINKABLE FILM |
摘要 |
A coextruded annealed gas-barrier heat-shrinkable packaging film suitable for flowpack or tray-lidding applications comprises a core EVOH layer (A), first and second outer polyolefin layers (B) and (C), and at least one inner layer (D) of a copolymer of propylene with butene and optionally also with ethylene, and is characterized by a maximum shrink force in the transverse direction £ 0.35 N/cm and by a residual shrink force in the range 0.11 to 0.22 N/cm. The film is obtained by coextrusion, optional irradiation, orientation and annealing at a temperature of from 70 to 90 °C. |
申请公布号 |
WO2011029950(A1) |
申请公布日期 |
2011.03.17 |
申请号 |
WO2010EP63442 |
申请日期 |
2010.09.14 |
申请人 |
CRYOVAC, INC.;RICCIO, MARINA;FORLONI, ROBERTO;URSINO, FELICE |
发明人 |
RICCIO, MARINA;FORLONI, ROBERTO;URSINO, FELICE |
分类号 |
B32B27/08;B32B27/30;B32B27/32;B65D65/40 |
主分类号 |
B32B27/08 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|