Plural coated article and process for making same

Details Plural coated article and process for making same Plural coated article and process for making same

1975-12-22

1976-11-09

Newsome, John H.

Coating processes

Electrical product produced

Integrated circuit, printed circuit, or circuit board

20415915, 20415916, 20415919, 427 54, 427250, 427404, 427407R, 427409, 428458, 428461, 428423, 428463, B05D 306, C08F 800, C08L 3102

Patent

active

039912302

ABSTRACT:
A radiation polymerizable protective coating composition or paint, coated articles bearing such a protective coating and processes for preparing such articles. The radiation polymerizable paint, on a non-polymerizable solvent, pigment, initiator and particulate filler-free basis consists essentially of a binder solution of: (1) an alpha-beta olefinically unsaturated organic resin containing between about .5 and about 5 units of olefinic unsaturation per 1,000 units of molecular weight; (2) a compound polymerizable with said resin upon exposure to ionizing radiation; and (3) between about 1.0 and about 15.0 parts per 100 parts of the total of said alpha-beta olefinically unsaturated resin and said compound polymerizable therewith of a triester of phosphoric acid bearing one or more sites of vinyl unsaturation. The composition exhibits excellent quality and good adhesion to a variety of substrates, in particular metals, including vapor deposited metals. Preferred articles bearing such a coating are prepared by: applying a base coat to a substrate and curing the same; vapor depositing a coating of a metal over the surface of the base coat; and applying to and curing on the surface of the deposited metal the radiation polymerizable topcoat, preferably with little or no pigment contained therein.

REFERENCES:
patent: 2934555 (1960-04-01), O'Brien et al.
patent: 3030347 (1962-04-01), O'Brien et al.
patent: 3437514 (1969-04-01), Burlant
patent: 3542586 (1970-11-01), Aronoff et al.
Gotoda et al., Jaeri 5026 pp. 121-129 (1970).

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