Zinc-based plated steel material having excellent sealer adhesion

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United States of America

PATENT NO 11299639
APP PUB NO 20190315977A1
SERIAL NO

16471889

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Abstract

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Provided are a zinc-base plated steel material comprising a base steel and a zinc-based plated layer and a post-treatment film, which are sequentially formed on the base steel. The post-treatment film comprises an oxide or oxide salt of at least one group A element selected from B, Al, V, and Fe and an organic compound, wherein the content of oxygen atoms in the post-treatment film is 50 atom % or more, and wherein when the mole number of oxygen atoms forming a covalent bond with hydrogen in the post-treatment film is a and the mole number of oxygen atoms not forming the covalent bond with hydrogen is b, a/b is 0.3 or greater; and a composition for forming the post-treatment film.

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Patent Owner(s)

Patent OwnerAddress
POSCO CO LTD6261 DONGHAEAN-RO NAM-GU POHANG-SI GYEONGSANGBUK-DO 37859

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kim, Yeon-Ho Gwangyang-si, KR 40 997
Kim, Yong-Woon Gwangyang-si, KR 38 274
Kim, Yung-Keun Gwangyang-si, KR 3 3
Song, Yon-Kyun Gwangyang-si, KR 19 26

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