TITANIUM-MADE CATHODE ELECTRODE FOR PRODUCING ELECTROLYTIC COPPER FOIL, ROTARY CATHODE DRUM USING THE TITANIUM-MADE CATHODE ELECTRODE, METHOD OF PRODUCING TITANIUM MATERIAL USING TITANIUM-MADE CATHOD ELECTRODE AND METHOD OF CORRECTING/WORKING TITANIUM MATERIAL FOR TITANIUM-MADE CATHODE ELECTRODE

WIPO Patent Application WO/2002/053805

A1

A cathode electrode for producing an electrolytic copper foil, which can be continuously used over a long time of at least 3000 hours, requires a minimum maintenance work, and can contribute to a reduction in running costs of producing electrolytic copper. A titanium-made cathode electrode consisting of a titanium material used when obtaining an electrolytic foil by using copper electrolyte, specifically, a titanium-made cathode electrode for producing an electrolytic copper foil characterized in that the titanium material has a grain size number of at least 7.0 and an initial hydrogen content of up to 35 ppm. A method of producing a titanium material used for the above titanium-made cathode electrode.

TOMONAGA SAKIKO (JP)
FUJITA SATORU (JP)
TANAKA HIROSHI (JP)
KIMINAMI YUTAKA (JP)
KANAKATU ISAMU (JP)
KURODA ATSUHIKO (JP)

PCT/JP2001/011424

July 11, 2002

December 26, 2001

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MITSUI MINING & SMELTING CO (JP)
NIPPON STAINLESS STEEL KOZAI C (JP)
SUMITOMO METAL IND (JP)
TOMONAGA SAKIKO (JP)
FUJITA SATORU (JP)
TANAKA HIROSHI (JP)
KIMINAMI YUTAKA (JP)
KANAKATU ISAMU (JP)
KURODA ATSUHIKO (JP)

B21B1/26; B21B3/00; C22F1/00; C22F1/02; C22F1/18; C25D1/00; C25D1/04; B21B45/00; (IPC1-7): C25D1/04

JPH0436488A	1992-02-06
JPH08144033A	1996-06-04
JPH08225905A	1996-09-03
JPH09176809A	1997-07-08

Tanaka, Daisuke (15-2 Hongo 1-chome Bunkyo-ku, Tokyo, JP)

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