1
Felice Mary Cerquone, Rolf Steven Gabrielsen, Roland George Willis: Photothermographic and thermographic compositions and uses therefor containing sulfonamidophenol reducing agents and four equivalent color couplers. Eastman Kodak Company, J J Ruch, May 3, 1977: US04021240 (81 worldwide citation)

In a photothermographic element, composition or process for producing developed images employing processing with heat, a combination comprising (a) photographic silver halide in association with (b) an oxidation-reduction image-forming combination comprising (i) a silver salt oxidizing agent and (ii ...


2
Hugh G McGuckin: Photothermographic element, composition and process for producing a color image from leuco dye. Eastman Kodak Company, J J Ruch, May 10, 1977: US04022617 (67 worldwide citation)

A photothermographic element and composition for providing a dye image comprises (a) photographic silver halide in association with (b) an oxidation-reduction image-forming combination comprising (i) a silver salt oxidizing agent, with (ii) an organic reducing agent, (c) a polymeric binder for the e ...


3
Wendell F Smith Jr, Kenneth L Eddy, Donald P Harnish: Photographic dye image stabilization. Eastman Kodak Company, J J Ruch, August 16, 1977: US04042394 (21 worldwide citation)

A photographic element is disclosed comprised of a support and at least one layer containing a photographic imaging dye or its precursor. The imaging dye is chosen to have an absorption peak below 590 nm. An azomethine dye having an absorption peak above 700 nm is associated with the imaging dye or ...


4
Colin Holstead, Wojciech Maria Przezdziecki, Hans M Wagner: Light-sensitive diazoketone and azide compositions and photographic elements. Eastman Kodak Company, J J Ruch, October 5, 1976: US03984250 (16 worldwide citation)

Light-sensitive compositions including a polymer of the type that is reactable with an azide sensitizer when exposed to light and a sensitizing amount of a naphthalene sensitizer having ortho diazo and oxo substituents at the 1,2 or the 2,1 positions of the naphthalene nucleus and further having an ...


5
George W Luckey: Process for preparing yttrium oxide and rare earth metal oxide phosphors. Eastman Kodak Company, J J Ruch, June 28, 1977: US04032471 (15 worldwide citation)

Phosphors which have a host matrix of yttrium oxide or a rare earth metal oxide and are activated by one or more rare earth metal activators are prepared by heating a mixture of salts of the host and activator metals (preferably this mixture is formed by co-precipitating the salts of the host and ac ...


6
Robert A Silverman, Charles J Wright: 2-Haloethylsulfonyl photographic hardener compounds, compositions, articles and preparation processes. Eastman Kodak Company, J J Ruch, May 18, 1976: US03957882 (2 worldwide citation)

Photographic elements are disclosed containing a hydrophilic colloid layer hardened with a compound having the structural formula:


7
Derek D Chapman: Fibers and fabrics containing optical brightening agents. Eastman Kodak Company, J J Ruch, September 28, 1976: US03983288

Quaternary salts having a pyrido-[1,2-a]-indole nucleus are useful optical brightening agents for synthetic and natural fibers and fabrics. The quaternary salts are especially useful optical brighteners for paper and acrylic fibers.


8
Donald M Burness, Robert A Silverman: Hydrophilic-colloid silver halide emulsion hardened with a bisvinylsulfonyl compound. Eastman Kodak Company, J J Ruch, July 12, 1977: USRE029305

Photographic elements are disclosed containing a hydrophilic colloid layer hardened with a compound having two vinylsulfonyl radicals coupled through a divalent hydrocarbon radical chosen from the group consisting of (1) an aliphatic radical having from 1 to 6 carbon atoms, (2) --X--Y--X-- in which ...