Radiation imagery chemistry: process – composition – or product th – Imaging affecting physical property of radiation sensitive... – Radiation sensitive composition or product or process of making
Patent
1985-12-27
1987-02-24
Brammer, Jack P.
Radiation imagery chemistry: process, composition, or product th
Imaging affecting physical property of radiation sensitive...
Radiation sensitive composition or product or process of making
430533, 430535, G03C 176
Patent
active
046457313
ABSTRACT:
Photosensitive element comprising a polyester, e.g., polyethylene terephthalate, at least 0.008 inch (0.20 mm) thick bearing on both sides a polymeric water-vapor barrier layer at least 0.00001 inch (0.00025 mm) thick of a copolymer of vinylidene chloride containing at least 80% by weight of vinylidene chloride and minor amounts of alkyl acrylate, and itaconic acid, and on at least one side of said barrier layer, a layer of a photosensitive material, e.g., silver halide emulsion, diazo or photopolymer. The element in the form of a phototool limits dimensional change within 6 hours after exposure to a 5% Relative Humidity change to no more than 0.001 inch (0.025 mm) per 24 inches (60.96 cm).
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A Coordinatograph-Glass Grid Method for Measuring Dimensional Changes in Films, Kenneth M. Smith, Journal of Applied Photographic Engineering, vol. 1, Fall 1975, pp. 12 to 17.
The Dimensional Stability of Polyester Photographic Films, Kenneth M. Smith, copyright 1979 by E. I. du Pont de Nemours & Co.
Bayless John H.
Steinberg Neil I.
Thirtle James H.
Brammer Jack P.
E. I. Du Pont de Nemours and Company
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