发明名称 |
MULTILAYER HEAT SHRINK FILM COMPRISING ETHYLENE/VINYL ACETATE COPOLYMER AND VERY LOW DENSITY POLYETHYLENE POLYMER LAYERS |
摘要 |
<p>A multi-layer heat shrinkable film not confined to but including at least three layers, one outside layer being of a blend of EVA and VLDPE, the other outside layer being VLDPE or a blend of VLDPE and EVA and an internal layer being EVA or primarily EVA. Such a multi-layer heat shrink film has good resistance of abuse. The film may include the optional barrier film and optionally two of the two contiguous co-extruded layers can be irradiated prior to the third or further layers. Such a precursor is then stretched into the film thickness required. The invention covers the method of treatment of such a film and a container or package including such a film.</p> |
申请公布号 |
NZ226983(A) |
申请公布日期 |
1990.08.28 |
申请号 |
NZ19880226983 |
申请日期 |
1988.11.17 |
申请人 |
W R GRACE (NZ) LTD |
发明人 |
MCMURTRIE, ANTHONY WARREN;BAINBRIDGE, GRAHAM THOMAS HUNTER |
分类号 |
A22C13/00;B29B13/08;B29C47/04;B29C47/06;B32B27/08;B32B27/16;B32B27/28;B32B27/30;B65B11/52;B65D65/02;B65D65/40;B65D71/08;(IPC1-7):B32B27/08;B32B31/28;B32B31/16 |
主分类号 |
A22C13/00 |
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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