| 摘要 |
PROBLEM TO BE SOLVED: To shorten the degreasing time of a formed molded product by including a thermoplastic resin, a plasticizer and a specific amount of a wax therein. SOLUTION: For example, waxes such as a petroleum-based, a synthetic or a vegetable wax are cited as a wax and the melting point thereof is preferably <=100 deg.C. The wax in an amount of 15-70 pts.wt. based on 100 pts.wt. of a composition for injection molding of a ceramic is contained therein. An acrylic resin and an ethylene-vinyl acetate copolymer are cited as a thermoplastic resin and the resins are more preferably used in combination. In this case, the amounts thereof compounded based on 100 pts.wt. of the composition for the injection molding of the ceramic are preferably 10-75 pts.wt. of the acrylic resin and 2-15 pts.wt. of the ethylene-vinyl acetate copolymer. A plasticizer is preferably a phthalic ester-based one and is preferably compounded in an amount of 1-15 pts.wt. based on 100 pts.wt. of the composition for the injection molding of the ceramic. |
