Method for surface treating conductive copper powder with a treating agent and coupler
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United States of America Patent
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Dec 13, 1994
Issued Date -
N/A
app pub date -
Mar 18, 1993
filing date -
Feb 19, 1992
priority date (Note) -
Expired
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Abstract
A method for surface treating conductive copper powder comprises dispersing pure copper powder or silver-coated copper powder in a solution of coupling agent selected from the group consisting of silane, titanate, aluminate and zirconate and a ZB-3 treating agent which is the reaction products of peanut oil fatty acids, boric acid and triethanolamine in a molar ratio of 1:1:2 in an organic solvent, the total amount of the coupling agent and ZB-3 treating agent being controlled in the range of from 0.1% to 10%, based on the weight of the copper powder, filtering after 1 hour standing and drying at 40.degree.-60.degree. C. under vacuum.
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