| 摘要 |
<p>The invention concerns a heat sealing composition comprising an adhesive constituent and a constituent forming a carcass, the adhesive constituent being a maleic vinyl-anhydride ethylene-acetate polymer or a vinyl ethylene-acetate polymer modified to have epoxy functions and the constituent forming a carcass being selected among block polyether amide modified or not and block polyether ester. Said composition is useful for making closure plugs.</p> |
