Pickling and passive film treating agent for removing scales and rusts on welding parts of stainless steel pipes and structures

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 10590544
SERIAL NO

15875309

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Abstract

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A composition for pickling a welded portion and a rust-generated portion according to installation of pipes, structures, plants, and so on formed of stainless steel, and for forming a passive state film thereon is provided. More particularly, the present disclosure relates to a neutral agent for passivating a surface of stainless steel metal in which a neutral agent is obtained by neutralizing a basic aqueous solution to 6.9 pH to 7.1 pH and aerated with carbon dioxide-free air to increase the amount of dissolved oxygen, so that an oxidation reduction potential in a range of 170 mV to 310 mV is obtained.

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Patent Owner(s)

Patent OwnerAddress
ENSITECH IP PTY LTDEMU PLAINS NEW SOUTH WALES 2750

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kim, Sang-Jin Busan, KR 103 1478
Park, Sung-Sik Seoul, KR 15 89

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