Hydrophilic colloid composition for a photographic material
AssigneeEastman Kodak Company
InventorsAlan R. Pitt, Bernard A. Clark, John F. Padday
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Abstract
A coating composition suitable for use in the preparation of a photographic material comprises an aqueous solution of a hydrophilic colloid and a surface active coating aid having the formula CF.sub.3 (CF.sub.2).sub.n CH.sub.2 O(glycidyl).sub.m H wherein n is an integer from 4 to 7; and, m is an integer from 6 to 45.
Claims8
A photographic material comprising a support and at least one hydrophilic colloid layer including at least one light-sensitive silver halide emulsion layer, characterised in that at least one hydrophilic colloid layer coated from a composition which comprises a surface active agent;
- wherein the surface active agent is present in an amount of 0.01 to 0.5 percent by weight of the composition and has an aqueous solution of a hydrophilic colloid and the formula
- CF.sub.3 (CF.sub.2).sub.n CH.sub.2 O(glycidyl).sub.m H
- wherein
- n is an integer from 4 to 7;
- and,
- m is an integer from 6 to 45.
Dependencies are inferred from the claim text.