STAINLESS STEEL PRODUCT HAVING EXCELLENT ANTIMICROBIAL ACTIVITY AND METHOD FOR PRODUCTION THEREOF

WIPO Patent Application WO/1999/064640

A1

A stainless steel product having excellent corrosion resistance, antimicrobial activity and durability which may be produced by providing a stainless steel product containing 10 wt.% or more of Cr, incorporating 0.0001 to 0.30 wt.% and optionally 0.0001 to 1.0 wt.% of V into the stainless steel product, and further incorporating and dispersing therein a silver oxide in an amount of 0.0005 wt.% or more and not more than 1.1 times that of the silver contained in the steel product, and a method for the production thereof. It is desirable for uniformly dispersing the aforementioned silver oxide that the casting of a molten steel is carried out by a continuous casting at a pouring speed of 0.8 to 1.6 m/min. This stainless steel product still exhibits excellent microbial activity, even after it is subjected to various surface treatments currently employed, including polishing.

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YOKOTA TAKESHI (JP)
TOCHIHARA MISAKO (JP)
SATOH SUSUMU (JP)
HASUNO SADAO (JP)

PCT/JP1999/002972

December 16, 1999

June 03, 1999

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KAWASAKI STEEL CO (JP)
YOKOTA TAKESHI (JP)
TOCHIHARA MISAKO (JP)
SATOH SUSUMU (JP)
HASUNO SADAO (JP)

C22C38/00; C22C38/40; C22C38/46; (IPC1-7): C22C38/00

JPH1112692A	1999-01-19
JPH10259456A	1998-09-29
JPH1129879A	1999-02-02
JPH09249948A	1997-09-22

See also references of EP 1018564A4

Ochiai, Kenichiro (Kawasaki Steel Corporation Hibiya Kokusai Building 2-3, Uchisaiwaicho 2-chome Chiyoda-ku Tokyo, JP)

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