| 摘要 |
<p>PCT No. PCT/GB94/00874 Sec. 371 Date Sep. 25, 1995 Sec. 102(e) Date Sep. 25, 1995 PCT Filed Apr. 25, 1994 PCT Pub. No. WO94/25511 PCT Pub. Date Nov. 11, 1994A composite sheet has a substrate layer, a coating layer and a flexible adhesive layer. The substrate layer is preferably a polyester film. The coating layer contains a layer mineral. The flexible adherent layer has a percentage elongation to break of greater that 150%. The composite sheet exhibits oxygen barrier properties and is suitable for use as a packaging film, particularly when laminated to a heat-sealable layer.</p> |
