Eastman-kodak Company

Genencor International, Inc.

Frank A Pettrone

Terrence Robert O'Toole

Gregory Marshall Whited

William E Yoerger

Daniel L Kapp

Kenneth G Harbison

Kenneth Don Fowler

Mridula Nair

Hugh G McGuckin

John S Badger

Charles T Goodhue

Kenneth L Tingler

Richard C Sehlin

Gustav R Apai, Ii

Theresa C Paulson

Mary Lynn Schmoeger

Patrick J Grisdale

A photographic color developing composition includes a color developing agent and at least 0.005 g/l of an anti-tar agent. Such anti-tar agents include a fluoroalkylpolyethyleneoxy alcohol, polyvinyl alcohol, a polyethylene glycol, a free acid of an organic phosphate ester or a salt thereof, or a polyethyleneoxide(20) sorbitan monooleate Inclusion of these agents has been found to significant reduce or elimination tar formation during the processing of color photographic materials, especially color motion picture films.

Color developing composition and method of use in photoprocessing

This invention relates to a method of preventing fog formation in a silver halide photographic element, said method comprising bringing a silver halide developer solution, or a solution preceding a silver halide developer solution, into contact with a cyanide scavenger by a method other than the seasoning out of the cyanide scavenger from a sensitized silver halide photographic element.

Method of processing a silver halide photographic element which reduces

This invention relates to a motion picture print film having a support and having, in order, on one side thereof an antihalation undercoat and at least one silver halide emulsion layer and having, in order, on the opposite side thereof an antistatic layer, a protective overcoat; characterized in that said protective overcoat includes a polyurethane binder and the polyurethane binder has a tensile elongation to break of at least 50% and a Young's modulus measured at a 2% elongation of at least 50000 lb/in, and a topcoat farthest from the support which includes a hydrophilic binder at a weight percent of at least 20.

Motion picture print film

By processing color motion picture film to yield a dye-only, 'silver-less' soundtrack, an antihalation layer containing silver may be incorporated into the film without interfering with the soundtrack signal in the resulting processed film. The process results in good antihalation protection of the print film during exposure, and a simplified processing procedure which does not require special processing of the exposed soundtrack relative to the image area frames. One embodiment of the invention comprises a method for recording and processing image area frames and an optical soundtrack in a color motion picture film comprising a support bearing blue, green, and red light sensitive silver halide emulsion dye forming layers and an antihalation layer, comprising imagewise exposing said emulsion layers in accordance with desired image area frames, exposing at least one of said emulsion layers in accordance with an analog soundtrack, and processing the exposed film to yield corresponding dye images in the exposed image area frames and analog soundtrack; wherein said antihalation layer comprises a hydrophilic colloid layer containing silver, and wherein said film is processed to yield a dye-only, silverless analog soundtrack, the soundtrack region of the film not being subjected to any specialized processing treatment relative to the image area frame region.

Method for recording and processing motion picture film soundtrack

Unsaturated esters can be converted into unsaturated polymerizable monomers using a biocatalyst derived from Corynebacterium oxydans. The method involves the step of reacting an unsaturated ester with an organic compound having a primary or secondary hydroxy group in a substantially organic environment in the presence of the noted biocatalyst. A transacylase has been isolated from the microorganism and at least partially purified.

Methods for enzymatically preparing polymerizable monomers

Acetate esters of diols and polyols can be prepared in aqueous systems using a biocatalyst derived from Corynebacterium oxydans. The method involves the step of reacting a diol or polyol with an acetate ester in a substantially aqueous environment in the presence of said biocatalyst.

Methods for preparing acetate esters of diols and polyols using

The invention provides coated carrier particles and dry electrographic developers comprising a mixture of the carrier particles and toner particles. Each of the carrier particles comprises a core particle having a polymeric overcoat comprising a blend of a fluorine-containing polymer and a modifying polymer comprising poly(p-t-butylstyrene) or a copolymer of p-t-butylstyrene and a C.sub.1 -C.sub.4 alkyl methacrylate.

Coated carrier particles and electrographic developers containing them

The invention provides coated carrier particles suitable for use in dry electrographic developers comprising a mixture of the carrier particles and toner particles. Each of the carrier particles comprises a core particle having a polymeric overcoat comprising poly(p-t-butylstyrene) or a copolymer of p-t-butylstyrene and a C.sub.1 -C.sub.4 alkyl methacrylate, wherein the polymer further comprises sulfur-containing end groups.

Growing community of inventors

Rochester, NY, United States of America

Frank A Pettrone