| 摘要 |
PURPOSE:To improve the blocking resistance and the adhesion of a coating film when applied to plastic films, etc. and to improve the resistance to a treatment with hot water after heat seal, by copolymerizing vinylidene chloride with methyl methacrylate, a monomer having a nitrile group and a monomer copolymerizable with vinylidene chloride. CONSTITUTION:Latex contains a vinylidene chloride copolymer composed of 85-93wt% unit (a) derived from vinylidene chloride monomer, 6-14.5wt% unit (b) derived from methyl methacrylate monomer, 0.5-4wt% unit (c) derived from a monomer having a nitrile group and copolymerizable with vinylidene chloride, and 0-2wt% unit (d) derived from a monomer copolymerizable with vinylidene chloride and other than the components (a), (b) and (c). The latex contains 4-30wt% polymer soluble in an eluent of tetrahydrofuran and methanol (60:40) and 4-60wt% polymer insoluble in an eluent of tetrahydrofuran and methanol (90:10) as resin components.
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