Radiation imagery chemistry: process – composition – or product th – Transfer procedure between image and image layer – image... – Image layer portion transfer and element therefor
Patent
1996-12-23
1998-04-21
Lesmes, George F.
Radiation imagery chemistry: process, composition, or product th
Transfer procedure between image and image layer, image...
Image layer portion transfer and element therefor
430256, 430262, 4302771, 4302811, 4302881, 430291, 430292, 430293, 430297, 430325, 430332, G03C 1112, G03C 1805, G03C 1120, G03C 173
Patent
active
057416214
ABSTRACT:
A process for preparing an image on a substrate by applying a photoimageable composition on a first substrate, wherein the photoimageable composition, having a solids content from 25 to 60 weight percent, contains a partially neutralized acid-containing polymer formed from a precursor polymer having an acid number from 90 to 160 prior to neutralization and wherein 1 to 15% of acid-containing groups of the precursor polymer are neutralized with base; an ethylenically unsaturated monomer; a photoinitiator or photoinitiating system, water; 0-5% by weight a solution polymer, based on the weight of total polymer present in the composition; and 0-25% by weight of an organic solvent based on the total weight of the organic solvent and water; wherein the liquid composition is present as a stable emulsion, and wherein the liquid composition has a Brookfield viscosity, at 25.degree. C., from about 10 to about 2000 centipoise; drying the coated photoimageable composition to form a photoimageable layer on a first substrate; imagewise exposing the layer to form imaged and non-imaged areas; and developing the exposed layer having imaged and non-imaged areas to form an image on the first substrate. The exposed layer may be developed by a wash-off development process, peel-apart development process or by application of a toner which may be in the form of a dry toner or a toning film. Print out images may also be obtained.
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Choi John Haetak
Kempf Richard Joseph
Taylor, Jr. Harvey Walter
Codd Bernard P.
E. I. Du Pont de Nemours and Company
Lesmes George F.
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