发明名称 Multi-layer, drawn, heat-sealable, vacuum-plated polypropylene film
摘要 The invention relates to an orientated, especially biaxially orientated, sealable multilayer film vacuum-plated with aluminium, which is largely free of migrating additives and has the structure ABCD, in which a) C is the core layer, consisting of isotactic polypropylene with an MFI of between 0.5 and 4.5 g/10 minutes; b) is the base layer for vacuum-plating, consists of between 0.1 and 0.5 % of an organic or inorganic antisticking particle with good adhesion to aluminium and between 99.5 and 99.9 % of an olefinic homo-, co-, or terpolymer or a mixture of said olefinic polymers, and is subjected to corona discharge, plasma, flame or fluorine treatment prior to vacuum-plating; c) A is the vacuum-plated aluminium layer, which reduces light transmission by a factor of 1/50 to 1/500; and d) D is the sealable layer consisting of an olefinic homo-, co- or terpolymer and between 0.1 and 0.5 % of an inorganic or organic antisticking particle which is not as adherent to aluminium as the antisticking particle contained in layer B.
申请公布号 AU8015498(A) 申请公布日期 1998.12.08
申请号 AU19980080154 申请日期 1998.05.04
申请人 WOLFF WALSRODE AG 发明人 DR. RAINER BRANDT;THOMAS GERNOT;WILLI SCHWARZ;HARALD EINENKEL
分类号 B32B15/08;B32B27/32;B65D65/40;C08L23/02;C08L31/00;C23C14/20 主分类号 B32B15/08
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