Transparent supports for photographic products

Details Transparent supports for photographic products Transparent supports for photographic products

1975-12-08

1978-01-03

Kendall, Ralph S.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Physical dimension specified

96 29R, 96 67, 96 87R, 427161, 427385B, 428336, 428337, 428339, 428341, 428421, 428422, 428423, 428424, 428480, 428483, B32B 2736, G03C 178, G03C 180, G03C 300

Patent

active

040668142

ABSTRACT:
Transparent elements useful as supports for photographic image-carrying and/or image-recording layers are provided comprising a polyester film base having an anti-reflection coating on one surface. Image-carrying and/or image-recording layers may be coated on the opposed surface.
The polyester film base of the transparent element has an index of refraction of at least 1.6, and the anti-reflection coating comprises a fluorinated polymer and has an optical thickness of a quarter wave. An isocyanate in the anti-reflection coating or between said coating and the polyester film base increases the abrasion resistance of the fluorinated polymer anti-reflection coating.

REFERENCES:
patent: 2207656 (1940-07-01), Cartwright et al.
patent: 2220861 (1940-11-01), Blodgett
patent: 2331716 (1943-10-01), Nadeau et al.
patent: 2376428 (1945-05-01), Hansell
patent: 2430479 (1947-11-01), Pratt et al.
patent: 2698242 (1954-12-01), Saner
patent: 3023126 (1962-02-01), Underwood et al.
patent: 3198692 (1965-08-01), Bridgeford
patent: 3617354 (1971-11-01), Carnahan
patent: 3703426 (1972-11-01), Larson et al.
patent: 3728124 (1973-04-01), Whyte
patent: 3793022 (1974-02-01), Land et al.
patent: 3925081 (1975-12-01), Chiklis

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