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AssigneeAida Chemical Industries Co., Ltd.
InventorsYukio Osawa, Katsuhiko Shimamoto, Shinichi Ishigaki, Hitoshi Araki, Yukio Nakata, Atsushi Fujimaru
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A clayish composition for producing a molded article of noble metal consists essentially of a noble metal powder, starch and a water-soluble cellulose resin as organic binder and water. The contents of the starch and the water-soluble cellulose resin each fall in the range of 0.02-3.0% by weight, based on the total amount of the organic binder and the noble metal powder. A method for producing the sintered article of noble metal consists essentially of a step for producing the clayish composition mentioned above, a step of molding the clayish composition in a desired shape, a step of drying the molded article and a step of sintering the dried molded article.
A clayish composition for producing a molded article of noble metal, consisting essentially of at least one noble metal powder selected from the group consisting of noble metal powders and noble metal alloy powders, starch and a water-soluble cellulose resin as organic binder and water, wherein the contents of said starch and said water-soluble cellulose resin each falls in the range of 0.02-3.0% by weight, based on the total amount of said organic binder and said noble metal powder.
A method for the production of a sintered article of noble metal, consisting essentially of a step of mixing and kneading at least one noble metal powder selected from the group consisting of noble metal powders and noble metal alloy powders with an aqueous solution of an organic binder consisting of starch and a water-soluble cellulose resin to produce a clayish composition wherein the contents of said starch and said water-soluble cellulose resin are each in the range of 0.02-3.0% by weight based on the total amount of said organic binder and said noble metal powder, a step of molding said clayish composition into a desired shape, a step of drying the resultant shaped article and a step of sintering the dried shaped article.
Dependencies are inferred from the claim text.