Coating processes – Direct application of electrical – magnetic – wave – or... – Polymerization of coating utilizing direct application of...
Patent
1997-03-31
1998-10-13
Berman, Susan W.
Coating processes
Direct application of electrical, magnetic, wave, or...
Polymerization of coating utilizing direct application of...
427512, 427515, 427517, 522 63, 522 86, 522148, 528 21, 528 25, 528 31, 528 33, 4302701, C08J 704, G03F 7075, C08G 7708
Patent
active
058209441
ABSTRACT:
The present invention pertains to a curable composition which comprises a) a N-substituted 4-(o-nitrophenyl)dihydropyridine which constitutes a base-generating substance that is caused to generate a base by the action of ultraviolet light, and (b) a silicone polymer (R.sub.2 SiO.sub.2/2)(RSiO.sub.3/2) containing silicon-hydrogen bonds (Si--H) which are capable of reacting with hydroxy groups to form silicon-oxygen bonds (Si--O) and hydrogen molecules (H.sub.2) under the effect of the base. This composition is cured by irradiation with ultraviolet light. Patterns are formed by placing a mask between a coating film of the composition and the ultraviolet light source during the irradiation with ultraviolet light, and then dissolving and removing the uncured portions of the composition following said irradiation.
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Harkness Brian R.
Tachikawa Mamoru
Takei Kasumi
Berman Susan W.
Dow Corning Asia Ltd.
Severance Sharon K.
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