| 摘要 |
A heat sealable thermoplastic film is coated on at least one side with an acrylonitrile-containing coating containing from 25 wt.% to about 80 wt.% acrylonitrile. More specifically, the film is coated on the inside with a polymeric coating comprising (i) from 25 to 50 wt.% of a nitrile such as acrylonitrile, (ii) from 40 to 75 wt.% of a monomer selected from the group consisting of an alkyl acrylate or 1,3-butadiene, and (iii) about 1 to 10 wt.% of a monomer selected from the group consisting of an ethylenically unsaturated carboxylic acid or sulfoethyl methacrylate, the coating having a calculated glass transition temperature (Tg) ranging from about 10 DEG C to less than about 50 DEG C. The outside of the film is coated with an acrylic coating composition which can contain from 0 to about 80 wt.% acrylonitrile. |
