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Colloidal metal-containing Urushi lacquer and Urushi lacquered article

外国特許コード F140008008
掲載日 2014年10月30日
出願国 アメリカ合衆国
出願番号 58794905
公報番号 20080206573
公報番号 7655086
出願日 平成17年2月8日(2005.2.8)
公報発行日 平成20年8月28日(2008.8.28)
公報発行日 平成22年2月2日(2010.2.2)
国際出願番号 JP2005001809
国際公開番号 WO2005078031
国際出願日 平成17年2月8日(2005.2.8)
国際公開日 平成17年8月25日(2005.8.25)
優先権データ
  • 特願2004-039143 (2004.2.17) JP
  • 2005JP001809 (2005.2.8) WO
発明の名称 (英語) Colloidal metal-containing Urushi lacquer and Urushi lacquered article
発明の概要(英語) An object of the present invention is to impart excellent gloss to an Urushi coating, improve drying properties, improve light fastness, and provide an environmentally responsible high-class lacquered article such as a 'Byakudan' (white sandalwood) coating or a 'Tamamushi' (iridescent) coating.
This object has been accomplished by an Urushi lacquer comprising a naturally occurring raw Urushi or a refined Urushi, and metal colloid particles.
As the metal colloid particles, precious metal colloid particles may preferably be used.
特許請求の範囲(英語) [claim1]
1. An Urushi lacquer comprising: a naturally occurring raw Urushi or a refined Urushi; and
metal colloid particles.
[claim2]
2. The Urushi lacquer according to claim 1, wherein it is a mixture of the refined Urushi and precious metal colloid particles, and has an average water droplet particle size of 0.1 to 3 mu m.
[claim3]
3. The Urushi lacquer according to claim 1, wherein the refined Urushi is an oil-free translucent Suki Urushi or an oil-containing translucent Suki Urushi.
[claim4]
4. The Urushi lacquer according to claim 1, wherein the metal colloid particles are precious metal colloid particles selected from the group consisting of gold colloid particles, silver colloid particles, and platinum group colloid particles.
[claim5]
5. The Urushi lacquer according to claim 1, wherein the metal colloid particles are gold colloid particles or silver colloid particles.
[claim6]
6. The Urushi lacquer according to claim 1, wherein the metal colloid particles are dispersed and stabilized by a pigment dispersion stabilizer.
[claim7]
7. The Urushi lacquer according to claim 1, wherein the pH of the lacquer is adjusted to 4 to 5 by the addition of an organic acid.
[claim8]
8. The Urushi lacquer according to claim 1, wherein an alkoxysilane is added.
[claim9]
9. An Urushi lacquered article coated with the Urushi lacquer according to claim 1.
[claim10]
10. The Urushi lacquered article according to claim 9, wherein it is a wooden product or a glass product.
  • 発明者/出願人(英語)
  • MIYAKOSHI TETSUO
  • NAGASE KISUKE
  • NAGASE LEGAL REPRESENTATIVE YUKIKO
  • MEIJI UNIVERSITY LEGAL PERSON
国際特許分類(IPC)
米国特許分類/主・副
  • 106/241
  • 428/433
  • 428/434
  • 428/440
  • 428/464
  • 428/499
掲載中の発明について更に詳しい内容の説明を御希望の際は、お気軽にお問い合せください。

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