Radiation imagery chemistry: process – composition – or product th – Imaged product – Structurally defined
Patent
1980-11-24
1982-06-08
Downey, Mary F.
Radiation imagery chemistry: process, composition, or product th
Imaged product
Structurally defined
20415913, 20415916, 20415919, 252600, 430 18, 430140, 430432, 430463, 430523, 430531, 430532, 430535, 430536, 430272, 430284, 430449, 430906, 430938, 430961, G03C 176, G03C 526
Patent
active
043339980
ABSTRACT:
Radiation-curable compositions useful for restorative and/or protective treatment of photographic elements are comprised of an acrylated urethane, an aliphatic ethylenically-unsaturated carboxylic acid, a multifunctional acrylate, and a siloxy-containing polycarbinol. Photographic elements, such as still films, motion picture films, paper prints, microfiche, and the like, are provided with a protective overcoat layer which is permanently bonded to the element, and serves to protect it from abrasion and scratches, by coating the element with the radiation-curable composition and irradiating the coating to bond it to the element and cure it to form a transparent, flexible, scratch-resistant, cross-linked polymeric layer. The protective overcoat layer can be applied to the image-bearing side of the element or to the support side of the element or to both sides. The radiation-curable composition can also be used as a restorative composition in the treatment of photographic elements which have scratches, abrasion marks, and the like, which impair the appearance or projection capabilities of the element. In use as a restorative composition, the radiation-curable composition can be applied locally in the region of the defects only, to effectively eliminate them and restore the element to a substantially defect-free condition, or it can be applied over the entire surface of the element to both eliminate the defects and form a protective overcoat layer that is capable of providing protection against subsequent scratching or abrasion.
REFERENCES:
patent: 4082634 (1978-04-01), Chang
patent: 4092173 (1978-05-01), Novak et al.
patent: 4130708 (1978-12-01), Friedlander et al.
patent: 4171979 (1979-10-01), Novak et al.
patent: 4248958 (1981-02-01), Faust
Dow Corning Corporation product bulletin entitled, "Information About Silicone Surfactants For Urethanes," Aug. 1968.
Dow Corning Corporation product bulletin entitled, "Organo-functional Silicone Fluids--Silicone Polycarbinols".
Downey Mary F.
Eastman Kodak Company
Lorenzo A. P.
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