专利汇可以提供Manufacture of ivory-like keyboard substance专利检索,专利查询,专利分析的服务。并且PURPOSE:To obtain ivory-like keyboard substance excellent in realism by a method wherein stripes of more then one kind of filler-blended casein composition having different color tone are arranged in sheets and hot-presses and finally cured. CONSTITUTION:More than one kind of molding composition having different color tone is obtained by adding 25-85 parts of filler to realize ivory-like keyboard substance, 1-5 parts of colorant and 20-50 parts of water to 100 parts of casein. A sheet-shaped arrangement body 31, in which striped compositions A2 and B2 are arranged alternately, is obtained by charging A raw material composition from the upstream side of a first extruder 11 or from the direction indicated with the arrows A and B raw material composition from the upstream side of a second extruder 12 or from the direction indicated with the arrows B in order to perform two-color extrusion at a mixed extruding part 13. A sheet-shaped molded body, in which turbulent flow pattern 51 is produced in the distinct interface between the striped compositions A2 and B2, is obtained by heating said sheet-shaped arrangement body 31 under pressure. Next, the sheet-shaped molded body obtained as mentioned above is treated with formalin for curing.,下面是Manufacture of ivory-like keyboard substance专利的具体信息内容。
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