The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 16, 2012
Filed:
Feb. 15, 2007
Kimitaka Sato, Honjo, JP;
Yutaka Hisaeda, Honjo, JP;
Kimitaka Sato, Honjo, JP;
Yutaka Hisaeda, Honjo, JP;
Dowa Electronics Materials Co., Ltd., Tokyo, JP;
Abstract
Provided is a method for producing a silver particle powder excellent in the dispersibility in a liquid organic medium having a low polarity, which comprises reducing a silver compound in an alcohol having a boiling point of from 80° C. to 200° C. or in a polyol having a boiling point of from 150 to 300° C., at a temperature of from 80° C. to 200° C. under reflux while maintaining the stream having a Reynolds number of not more than 3.70×10. The stream having a Reynolds number of not more than 3.70×10can be maintained by stirring with a stirring power of not more than 5.68×10W. According to the method, a silver particle powder having good low-temperature sinterability and good dispersibility and suitable for use for microwiring formation can be obtained at a high yield.