CONTAMINATION-PROOF SEALANT FILM AND PRODUCT FABRICATED THEREFROM

摘要

A contamination-proof sealant film mainly used in the medical field, which is provided at least with the first layer as the innermost layer comprising at least one resin selected from the group consisting of linear low-density polyethylene, low-density polyethylene, polypropylene and polybutene-1, the second layer as an adhesive layer comprising non-crystalling polyolefin, adhesive polyolefin or an ethylene-vinyl acetate copolymer, and the third layer consisting of an ethylene-vinyl alcohol copolymer. The third layer functions as a barrier for preventing the contaminant from migrating from outside the third layer toward the first layer as the innermost layer.