| 摘要 |
PURPOSE:To provide the titled material capable of forming a sealing which can be easily released from the sealed container composed mainly of a chlorine- containing vinyl polymer, by compounding an EVA modified with an aromatic vinyl monomer and an ethylene copolymer containing an unsaturated organic acid. CONSTITUTION:The objective material is obtained by compounding (A) 10- 100ptw.wt., preferably 50-100pts.wt. of a modified resin prepared by grafting 40-95wt% ethylene-vinyl acetate copolymer preferably having a vinyl acetate content of 5-35wt% and an MI of 0.5-150g/10min with 60-5wt% aromatic vinyl monomer of formla (R1 is H or 1-4C alkyl; R2-R6 are R1 or halogen) and (B) 90-0pts., preferably 50-0pts. of an ethylene copolymer containing unsaturated organic acid, e.g. an ethylene-(meth)acrylic acid copolymer having an ethylene content of >=50wt%. |
