| 摘要 |
<p>Improved self-adhesive flexible film for the temporary protection of fragile surfaces, of the type consisting of at least two coextruded adjoining superposed layers: - one being the base, made of a film-forming composition of thermoplastic material; - the other being self-adhesive, made of a film-forming ethylene-vinyl acetate (EVA) composition compatible with the base layer polymer, characterised in that the self-adhesive layer consists of a film- forming EVA copolymer exhibiting: - on the one hand, a vinyl acetate content of between 25 and 40%; on the other hand, a melt index of between 20 and 60. <IMAGE></p> |
