发明名称 Multi-layer heat-shrinkable film with reduced shrink force process for the manufacture thereof and packages comprising it
摘要 A heat-shrinkable film comprising a core layer comprising an ethylene-vinyl alcohol copolymer, two outer layers of blends comprising ethylene-vinyl acetate and ethylene- alpha -olefin copolymers, and two adhesive layers, characterized in that said film has a free shrink of at least 40%, preferably at least 45% and most preferably at least 50%, in both dimensions at 120 DEG C. and a maximum shrink force in the transversal direction, throughout its range of shrink temperatures, not exceeding 0.5. N/cm. The film is suitable to package deformable articles such as trays to give a tight package without causing deformation.
申请公布号 ZA9510748(B) 申请公布日期 1996.08.27
申请号 ZA19950010748 申请日期 1995.12.18
申请人 W. R. GRACE & CO.-CONN. 发明人 SERGE BAX;PAOLO CIOCCA;EDWARD L. MUMPOWER
分类号 B65B53/00;B32B27/28;B32B27/30;B32B27/32;B65D65/40;B65D71/08;B65D75/00;C08J5/18 主分类号 B65B53/00
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