Eastman-kodak Company

Dana-farber-cancer Institute Inc.

Wilbert J Humphlett

Lan Bo Chen

Rowland G Mowrey

Howell Allen Hammond

Ilmari Fritiof Salminen

There are described an anti-cancer composition and a method of treating differentiated carcinomas or melanoma, Featuring a suitable carrier and particular 2,4,6-tri(aryl or heteroaryl) thiapyrylium dyes.

Composition and method for treating differentiated carcinoma or melanoma

A dry, activator sheet for a dry, thermal silver dye bleach process comprises a support having thereon a non-volatile, diffusible acid, a substituted heterocyclic thiazoline, oxazoline, imidazoline or imidazolidine silver halide complexing agent and a non-hydrolyzable polymer vehicle having an effective pH up to 6.0 and a melting point lower than 200.degree. C. The activating sheet is useful to bleach a silver image containing a bleachable dye.

Dry heat-activated bleaching of silver images

Photographic elements are disclosed which contain a blocked development restrainer which is designed to provide timely release of a development restrainer when the photographic element is processed with an alkaline processing composition. The photographic elements are especially useful in image-transfer film units where the blocked development restrainers will permit initial development to occur and, upon cleavage, will substantially restrain further development.

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Rochester, NY, United States of America

Wilbert J Humphlett