G - Physics – 03 – G
Patent
G - Physics
03
G
314/13, 96/173,
G03G 5/07 (2006.01) G03G 5/026 (2006.01) G03G 13/02 (2006.01) G03G 15/02 (2006.01) H05K 3/00 (2006.01) H05K 3/06 (2006.01)
Patent
CA 2016389
ABtract TITLE PHOTOHARDENABLE ELECTROSTATIC ELEMENT WITH IMPROVED ENVIRONMENTAL LATITUDE Photohardenable electrostatic master with improved environmental latitude comprising (1) an electrically conductive substrate, and (2) a layer of photohardenable composition consisting essentially of (a) at least two organic polymeric binders, at least one having a Tg greater than 80°C and at least one having a Tg less than 70°C, (b) at least one monomeric compound having at least one ethylenically unsaturated group, and (c) a photoinitiator or photoinitiator system, the shift in transit time (a?) of the photohardenable layer in the range of 30% ? relative humidity ? 60% and 15.6°C ? temperature ? 26.7°C is 15 or less, preferably 10 or less. A xeroprinting process is described using the master. The master is used in graphic arts, color proofing which duplicates images produced by printing, preparation of printed circuit boards, resists, soldermasks, etc.
Blanchet-Fincher Graciela B.
Chang Catherine T.
Fincher Curtis R. Jr.
Blanchet-Fincher Graciela B.
Chang Catherine T.
E. I. Du Pont de Nemours And Company
Fincher Curtis R. Jr.
Sim & Mcburney
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