Fluoride coating compositions, methods for forming fluoride coatings, and magnets
OwnerYuichi Satsu, Matahiro Komuro +3inventors
InventorsYuichi Satsu, Matahiro Komuro, Noboru Baba, Yuzo Kozono, Kunihiro Maeda
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Abstract
A fluoride coating composition forms a coating of a rare earth fluoride and/or an alkaline earth metal fluoride on a surface of an article to be coated. The composition contains the rare earth fluoride and/or alkaline earth metal fluoride, and a medium mainly containing at least one alcohol. In the composition, the rare earth fluoride and/or alkaline earth metal fluoride is swollen by the medium, is gelatinous, and is dispersed in the medium.
Claims15
A fluoride coating composition for applying a coating of a rare earth fluoride and/or an alkaline earth metal fluoride to a surface of an article to be coated, comprising:
- the rare earth fluoride and/or alkaline earth metal fluoride;
- and
- a medium mainly comprising at least one alcohol,
- wherein the rare earth fluoride and/or alkaline earth metal fluoride is swollen by the medium, is gelatinous and is dispersed in the medium.
A method for forming a coating of a rare earth fluoride and/or an alkaline earthmetal fluoride on an article to be coated, comprising the step of bringing the article to be coated into contact with a fluoride coating composition,
- the fluoride coating composition comprising:
- the rare earth fluoride and/or alkaline earth metal fluoride;
- and
- a medium mainly comprising at least one alcohol,
- wherein the rare earth fluoride and/or alkaline earth metal fluoride is swollen by the medium, is gelatinous and is dispersed in the medium so as to have an average particle diameter of 10 μm or less.
A magnet comprising magnetic particles, wherein the magnetic particles have been treated with a coating composition comprising:
- the rare earth fluoride and/or alkaline earth metal fluoride;
- and
- a medium mainly comprising at least one alcohol,
- wherein the rare earth fluoride and/or alkaline earth metal fluoride is swollen by the medium, is gelatinous, is dispersed in the medium so as to have an average particle diameter of 10 μm or less.
Dependencies are inferred from the claim text.