Conductive coatings

Details Conductive coatings Conductive coatings

1985-04-09

1986-07-15

Barr, Josephine L.

Coating processes

Electrical product produced

Integrated circuit, printed circuit, or circuit board

427393, 252500, 252518, B05D 104

Patent

active

046005986

ABSTRACT:
A conductive pretreatment solution is disclosed which renders dried wood electrostatically coatable through several coatings while minimizing contamination of the topcoat. The pretreatment solution comprises a volatile liquid carrier selected from water and organic solvents, the carrier having dissolved therein, per 100 parts by volume of total solution, (1) from 0.2 to 3 parts by volume of an organic quaternary ammonium compound having a molecular weight below about 1000, (2) from 0.2 to 10 parts by volume of a low volatile liquid polyol having a molecular weight below about 400, and (3) from 0.1 to 3 parts by weight of an inorganic ionizable salt having a capacity to absorb moisture, especially chlorides of a cation selected from the group consisting of ammonium, magnesium and calcium.

REFERENCES:
patent: 3236679 (1966-02-01), Spiller et al.
patent: 3967011 (1976-06-01), Dunn et al.
patent: 4132674 (1979-01-01), Hwang
patent: 4382105 (1983-05-01), Amundsen et al.
patent: 4454058 (1984-06-01), Savit

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