A film coated with a surfactant or residue of a surfactant is disclosed. The film comprises, or is produced from, an ethylene copolymer or modified ethylene copolymer or ionomer thereof and a tackifier. The ethylene copolymer is a copolymer or terpolymer or tetrapolymer comprising repeat units derived from ethylene and about 5 to about 50 wt % of a polar monomer. The tackifier can comprise para-coumarone-indene resins, terpene resins, butadiene-styrene resins, polybutadiene resins, hydrocarbon resins, rosins, or combinations of two or more thereof. The monomer can be vinyl alkanoic acid, acrylic acid, alkyl acrylic acid, or alkyl acrylate, or combinations of two or more thereof.
本发明公开了一种涂有
表面活性剂或
表面活性剂残留物的薄膜。薄膜由
乙烯共聚物或改性
乙烯共聚物或其离子
聚合物和增粘剂组成,或由其制成。
乙烯共聚物是一种共聚物、三元共聚物或四元共聚物,由源自
乙烯的
重复单元和约 5 至约 50 wt % 的极性单体组成。增粘剂可包括对位
香豆酮茚树脂、萜
烯树脂、
丁二烯-
苯乙烯树脂、聚
丁二烯树脂、烃
树脂、
松香或其中两种或两种以上的组合。单体可以是
乙烯基烷酸、
丙烯酸、
丙烯酸烷基
酯或
丙烯酸烷基
酯,或其中两种或两种以上的组合。