| 摘要 |
<p>Multilayer fluoropolymer films are formed from a layer of a fluoropolymer, a tie layer and a thermoplastic layer. The tie layer is a blend of an olefin-containing polymer, preferably at least one polyolefin having at least one functional moiety, such as an unsaturated carboxylic acid or anhydride thereof, and a styrene-containing polymer. Preferably, the fluoropolymer is a chlorotrifluoroethylene homopolymer or copolymer and the thermoplastic layer is a polyethylene. The preferred styrene-containing polymer is a styrene-ethylene-butylene-styrene block copolymer. These films exhibit increased adhesion between the layers as compared to a multilayer structure in which the tie layer is formed only from the olefin-containing polymer. The multilayer films are useful in packaging applications, including pharmaceutical packaging.</p> |
