To provide a water-based matting surface-treatment agent composition to be applied to a vinyl chloride resin sheet, leather, tarpaulin, etc., to form a matte film having excellent antiblocking property, stainproofness and cohesiveness.
The water-based matting surface-treatment agent composition is produced by compounding (A) an aqueous emulsion of a methacrylate resin having a methyl methacrylate content of 70 pts.wt. as a base resin with (B) 5-100 pts.wt. of internally crosslinked organic fine particles having an average particle diameter of 1-8 m as a matting agent and (C) 15-150 pts.wt. of an organic solvent as a film-forming assistant based on 100 pts.wt. of nonvolatile components of the component (A). The composition is applied to a base material made of a vinyl chloride resin and dried with heat to obtain the objective coating film.
OBATA KATSUYA
Hideo Takei
Yoshio Narui