Mitsui Minings & Melting Co., Ltd.

Mitsui Kinzoku Kogyo Kabushiki Kaisha

Hirohisa Senzaki

Kanetaro Sannohe

Yoshio Sohama

Yoshimi Hata

Yoshinobu Nakamura

Munetoshi Yamaguchi

Morimasa Sumida

Masaharu Onoue

Masamoto Sasaki

Junichirou Tanaka

Process for preparing metallic cadmium powder

A method of manufacturing manganese dioxide containing 0.05 to 2.0 parts by weight of phosphorus which consists of introducing a manganese sulfate solution and sulfuric acid as an electrolyte into an electrolytic cell, adding to said electrolyte at least one member selected from the group consisting of phosphoric acid, phosphorous acid, hypophosphorous acid and compounds thereof and carrying out the electrolysis at a bath temperature of 92.degree. to 100.degree. C. whereby manganese dioxide containing phosphorus is electrodeposited on the cathode.

Method of manufacturing manganese dioxide

A process for preparing a copper powder for electroconductive paints, which comprises adding to a dispersion bath of copper powder and a dispersion medium a mixture of a titanium acylate polymer and a higher carboxylic acid ester to form a film of the titanium acylate polymer and the higher caboxylic acid ester on the surfaces of the particles of said copper powder, and if necessary, removing the dispersion medium to obtain the copper powder for electroconductive paints. The copper powder thus obtained is coated on the surfaces of its particles with the titanium acylate polymer and the higher carboxylic acid ester.

Copper powder for electroconductive paints and process for production

A process for preparing a copper powder for electroconductive paints, which comprises adding to a dispersion bath of copper powder and a dispersion medium a mixture of a titanium acylate polymer and a higher carboxylic acid ester to form a film of the titanium acylate polymer and the higher carboxylic acid ester on the surfaces of the particles of said copper powder, and if necessary, removing the dispersion medium to obtain the copper powder for electroconductive paints. The copper powder thus obtained is coated on the surfaces of its particles with the titanium acylate polymer and the higher carboxylic acid ester.

Resin coated copper powder for electroconductive paints

Growing community of inventors

Takehara, Japan

Hirohisa Senzaki