Cured opaque coating with high hiding power produced from normal

Details Cured opaque coating with high hiding power produced from normal Cured opaque coating with high hiding power produced from normal

1975-07-14

1976-11-23

Newsome, John H.

Coating processes

Electrical product produced

Integrated circuit, printed circuit, or circuit board

20415919, 260861, 260862, 427 54, B05D 306

Patent

active

039937984

ABSTRACT:
Cured, opaque coatings with high hiding power are produced on a substrate from a normally transparent and radiation transmitting unsaturated polyester paste filler composition containing customary additives, curing catalysts and optionally fillers of low hiding power and non-reactive solvents and/or plasticizers wherein the filler composition has a weight ratio of unsaturated polyester to the sum of copolymerizable monomers and optionally non-reactive solvents and plasticizers of from about 10 : 12 to 10 : 40, preferably from about 10 to 15. The unsaturated polyester filler composition may further have up to 95 percent by weight of the copolymerizable monomers replaced by the non-reactive solvents and/or plasticizers. The composition may be cured by UV rays, sunlight or other ionizing radiation.

REFERENCES:
patent: 3499781 (1970-03-01), Krueckel
patent: 3669716 (1972-06-01), Keyl et al.
patent: 3699022 (1972-10-01), Behrens et al.
patent: 3721723 (1973-03-01), Heidel
patent: 3760033 (1973-09-01), Arbuckle

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