| 摘要 |
PURPOSE:To easily obtain a compression-molded body by a method wherein spherical porous polyamide resin powder the total pore volume of which has a specified value or powdered stock containing said powder is compression- molded. CONSTITUTION:Powdered stock containing spherical porous polyamide resin powder is compression-molded. In order to realize excellent bonding force without impairing mechanical strength, polyamide resin powder the total pore volume of which is 0.25-1.5cc/g is employed. The particle diameter of the polyamide resin powder is selective in accordance with the application of a compression- molded body and, for example, the preferable particle diameter for powdered solid cosmetics is 2-20mum. The molded item of the porous polyamide resin powder does not easily to go pieces because its particles bind strongly with one another even when the particles only are powder mixed with other powder component is stamped at normal temperature, a strong molded item is formed because the polyamide resin particles intertwine with the particles of the other powder component. |
