Coating processes – Electrical product produced – Integrated circuit – printed circuit – or circuit board
Patent
1984-07-18
1986-07-15
Barr, Josephine L.
Coating processes
Electrical product produced
Integrated circuit, printed circuit, or circuit board
427282, 4273935, 4273936, 252511, 524495, 524496, B05D 512, H01B 106
Patent
active
046006028
ABSTRACT:
This invention provides unique resistor compositions. These compositions contain solid long chain phenolic resin, liquid short chain phenolic resin and a mixture of carbon black and graphite particles dispersed therein. The combination of these elements allows for resistor compositions that are capable of withstanding high humidity conditions without significant changes in resistivity and which are capable of low ohmic values in the absence of metals. Also provided is a method of producing these compositions.
REFERENCES:
patent: 3686139 (1972-08-01), Lubin
Martin Frank W.
Shahbazi Samson
Barr Josephine L.
Battle Carl W.
Fein Michael B.
Rohm and Haas Company
Scott W. E. R.
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