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US 9,921,502 B2Granted
Thermosetting powder coating material and coating method
AssigneeFuji Xerox Co., Ltd.
InventorsMasato Mikami, Satoshi Yoshida, Akihiko Noda
Life of this patent
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Abstract
A thermosetting powder coating material includes a powder particle containing a thermosetting resin and a thermosetting agent and has a volume particle size distribution index GSDv of less than 1.20 and an average circularity of not less than 0.96.
Claims18
A thermosetting powder coating material,
- comprising a powder particle containing a thermosetting resin and a thermosetting agent,
- wherein the powder particle has a volume particle size distribution index GSDv of from 1.18 to 1.20 and an average circularity of not less than 0.96, and
- wherein the thermosetting resin is a thermosetting polyester comprised of a polycondensate of a polyol and at least one polybasic acid selected from the group consisting of terephthalic acid, isophthalic acid, phthalic acid, methylterephthalic acid, trimellitic acid, pyromellitic acid, succinic acid, adipic acid, azelaic acid, sebacic acid, maleic acid, itaconic acid, fumaric acid, tetrahydrophthalic acid, methyltetrahydrophthalic acid, hexahydrophthalic acid, methylhexahydrophthalic acid, cyclohexane dicarboxylic acid, 2,6-naphthalene dicarboxylic acid, or anhydrides thereof.
Dependencies are inferred from the claim text.