Coating processes – Electrical product produced – Integrated circuit – printed circuit – or circuit board
Patent
1976-05-07
1978-05-23
Smith, Ronald H.
Coating processes
Electrical product produced
Integrated circuit, printed circuit, or circuit board
282 275, 427 54, 427150, 427151, 427152, 427401, B05D 306
Patent
active
040911225
ABSTRACT:
A process is provided for producing a pressure-sensitive carbonless transfer or record sheet comprising the steps of preparing a liquid chromogenic coating composition by mixing chromogenic material with a liquid radiation curable substance, the chromogenic material comprising either an acidic color developer of the electron donator type or a color precursor of the electron accepting type. The liquid coating composition is coated onto a web or substrate at a coat weight of from about 0.2 pounds to about 8.0 pounds per 3300 square feet of substrate. The coated web is then exposed to radiation for a time sufficient to cure the liquid coating composition to a tack-free film. A novel liquid chromogenic coating composition is produced, the coating composition comprising a chromogenic material and a radiation curable substance. A pressure-sensitive copy sheet is produced, the copy sheet comprising a substrate having a plurality of surfaces at least one of the surfaces being coated with a tack-free film, the film comprising a radiation cured resin containing a chromogenic material dispersed.
REFERENCES:
patent: 3759807 (1973-09-01), Osborn et al.
patent: 3955025 (1976-05-01), Matsukawa et al.
patent: 3957495 (1976-05-01), Teranishi et al.
patent: 3979270 (1976-09-01), Trecker et al.
patent: 3981523 (1976-09-01), Maalouf
patent: 3996405 (1976-12-01), Porter
patent: 4012554 (1977-05-01), Miller et al.
Davis Gerald Titus
Shackle Dale Richard
Bell Janyce A.
Cagle Stephen H.
Palmer Wilson G.
Shane, Jr. Charles N.
Smith Ronald H.
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