| abstract |
The present invention pertains to: a composition for an overcoating and for an adhesive agent that are used on paper, the composition being characterized in containing a resin that includes a styrene acrylic copolymer of styrene, α-methylstyrene, and a (meth)acrylate, and also being characterized in containing an aqueous medium and an emulsion in which the minimum film-formation temperature ranges from -30°C to 30°C; and a coated paper, a water-resistant and oil-resistant paper, and a laminate such as a paper cup or a paper straw that each have a resin layer of the composition. The present invention makes it possible to achieve both a function as an adhesive agent for bonding a paper substrate and a plastic film or another paper substrate, and a function of water resistance and oil resistance that is desired in overcoating agents for paper substrate surfaces, and the present invention also can be recycled without being separated during paper recycling. Therefore, this composition for an overcoating and for an adhesive agent is useful as a substitute for polystyrene in paper containers, etc. |