RUST PREVENTIVE COATING COMPOSITION, RUST PREVENTIVE FILM, AND ARTICLE, AND ZINC-BASED COMPOSITE PARTICLES AND COMPOSITION CONTAINING ZINC-BASED COMPOSITE PARTICLES
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United States of America Patent
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Issued Date -
Oct 12, 2023
app pub date -
May 25, 2023
filing date -
Dec 2, 2020
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Abstract
There is provided a rust preventive pigment capable of achieving both high stability in water or an aqueous medium, and excellent rust preventive capability and adhesion of an obtained rust preventive film, and a rust preventive coating composition with which a rust preventive film can be obtained that excels in stability of a rust preventive pigment and that excels in rust preventive capability and adhesion. The rust preventive coating composition of the present invention contains a rust preventive pigment comprising one or more among particles of zinc or a zinc alloy that has had at least a portion of the surface thereof treated with phosphoric acid.
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