发明名称 PELICULA PARA EMPACOTAMENTO DE MULTIPLAS CAMADAS E PROCESSO PARA FABRICAR A PELICULA
摘要 <p>The multi-layer polyolefin shrink film of this invention provides shrink tensions, optical clarity, cuttability, sealability, shrink temperature range, and tear resistance heretofore unobtainable in an oriented, monolayer polyolefin material. The preferred film has three layers in which the core layer comprises a blend of ethylene-vinyl acetate copolymer with ethylene-butylene copolymer and each skin layer comprises ethylene-propylene copolymer.</p>
申请公布号 BR7902250(A) 申请公布日期 1979.11.20
申请号 BR19797902250 申请日期 1979.04.11
申请人 GRACE & CO W R 发明人 MUELLER W
分类号 B29C55/12;B29C61/06;B29K105/02;B29L9/00;B32B27/28;B32B27/32;B65D65/40;(IPC1-7):C08J5/18;B32B27/00;B29D9/00 主分类号 B29C55/12
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