Process for forming novel silver powder composition
AssigneeGraham Magnetics Incorporated
InventorsRobert J. Deffeyes, Harris W. Armstrong
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Abstract
A novel silver powder paint composition characterized by a very low fusion, or film-forming temperature, probably assignable to the relatively small amount of oxides or other undesirable occulsions within coatings formed of the powder. The invention also relates to a new process for forming such a powder; the process is believed to involve the formation of a fatty-acid silver reaction product of the surface on the silver powder before it is subjected to fusion into a metallic coating. During fusion the decomposing reactant seems to act as a flux aiding the formation of a metal film of superior appearance and strength.
Claims11
A process for making a metal powder product comprising the steps of:
- (a) mixing an organometallic salt of a metal and a carboxylic acid in a liquid organic reactant;
- and, simultaneously
- (b) decomposing said salt to form a metal powder in the presence of said reactant;
- and
- (c) forming a protective barrier about newly formed particles of said metal powder by reacting said organic reactant with newly formed particles of said metal powder.
Dependencies are inferred from the claim text.