Donald W Heseltine

US Patent:

40037509, Jan 18, 1977

Filed:

May 3, 1973

Appl. No.:

5/356980

Inventors:

Donald W. Heseltine - Rochester NY
Donald W. Kurtz - Rochester NY
Derek D. Chapman - Rochester NY
James K. Elwood - Rochester NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

G03C 124
G03C 116

US Classification:

96129

Abstract:

Methine dyes comprising first and second nuclei joined by a double bond or a methine linkage. The first nuclei may be either A. a pyrido nucleus joined at the 4- or 6-carbon atom thereof to said double bond or methine linkage or, B. a 5,6-dihydropyrido nucleus joined at the 4- or 5-carbon atom to said double bond or methine linkage. The pyrido or dihydropyrido nucleus can have fused to its 1,2-side the atoms required to complete a ring containing 5 or 6 atoms. The second nuclei may be either the same as (a) or (b) or can be of the type typically used in cyanine styryl and merocyanine dyes. Such dyes are useful filter dyes and spectral sensitizers for silver halide compositions. Also described are intermediates useful in the synthesis of said dyes.

US Patent:

39766616, Aug 24, 1976

Filed:

Jan 18, 1974

Appl. No.:

5/434751

Inventors:

Leslie G. S. Brooker - Rochester NY
Arthur Fumia - Hilton NY
Donald W. Heseltine - Rochester NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

C07D29514
C07D40508
C07D40908

US Classification:

2603265SF

Abstract:

Novel trimethine hemioxonol dyes are provided in which the polymethine chain of the dye includes the 1, 2 and 3 carbon atoms of a 1-cyclohexen-3-ylidene nucleus, the 1-carbon atom of said 1-cyclohexen-3-ylidene nucleus having the nitrogen atom of a tertiary amino group attached thereto. Photographic emulsions and elements are also provided featuring the trimethine hemioxonol dyes of the invention as spectral sensitizers or as filter material.

US Patent:

T9720014, Jul 4, 1978

Filed:

Jan 25, 1977

Appl. No.:

5/762356

Inventors:

Wayne Woodrow Weber - Rochester NY
Donald Warren Heseltine - Rochester NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

C07C 8724
C07D22302
C07D24102
C07D29520

US Classification:

542469

Abstract:

1-Amino-4-cyano-1,3-butadiene compounds of the formula ##STR1## WHEREIN N IS 1 OR 2; WHEN N IS 1, R. sub. 1 and R. sub. 2 are the same or different and represent hydrogen, alkyl including substituted alkyl, aryl including substituted aryl or cyclic alkyl groups, except that both R. sub. 1 and R. sub. 2 cannot be hydrogen, or taken together R. sub. 1 and R. sub. 2 represent the elements necessary to complete a cyclic amino group and, when n is 2, at least one of R. sub. 1 and R. sub. 2 is alkylene or arylene; G represents an electron withdrawing group. The compounds are especially useful in photographic elements as UV absorbers. Particularly useful UV absorbers are 3-dibutylaminoallylidenemalononitrile, 3-dihexylaminoallylidenemalononitrile, 3-tert-butylaminoallylidenemalononitrile, 3-diisobutylaminoallylidenemalononitrile, 3-di-sec-butylaminoallylidenemalononitrile, 3-hexahydroazepinoallylidenemalononitrile, 3-N(n-butyl)-N-cyanomethyl aminoallylidenemalononitrile, 3[N,N-bis-(2,2-diethoxyethyl)amino]allylidenemalononitrile, 3(N-methyl-N-cyanomethyl)aminoallylidenemalononitrile, 1,4-piperazino bis(allylidenemalononitrile), N,N-diethyl-N,N-di-(4,4-dicyanobutadienyl)-1,6-diaminohexane, 3-[N,N-bis(2-cyanoethyl)amino]allylidenemalononitrile, 3-morpholinoallylidene methylsulfonylacetonitrile, 3-morpholinoallylidene 4-tert-butylphenylsulfonylacetonitrile, 3-piperazinoallylidene 4-tert-butylphenylsulfonylacetonitrile and 3-N-methylpiperazinoallylidene 4-tert-butylphenylsulfonylacetonitrile.

US Patent:

40812790, Mar 28, 1978

Filed:

May 24, 1976

Appl. No.:

5/689324

Inventors:

Charles A. Goffe - late of Brockport NY
Donald W. Heseltine - Rochester NY
Robert E. Bernard - Rochester NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

G03C 524
G03C 326

US Classification:

96 48HD

Abstract:

Certain radiation sensitive quinone compounds and nitrobenzylidene dyes in photothermographic elements, compositions and processes on exposure to activating radiation, release a species which catalyzes the reduction of silver salt oxidizing agents in the presence of non-light sensitive reducing agents upon heating. The elements, after imagewise exposure, are heated to develop the image.

US Patent:

RE291684, Apr 5, 1977

Filed:

Jul 1, 1975

Appl. No.:

5/592281

Inventors:

Donald W. Heseltine - Rochester NY
Philip W. Jenkins - Rochester NY
John D. Mee - Rochester NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

G03C 184
G03C 102

US Classification:

96 84R

Abstract:

Novel photographic materials comprising a light-sensitive layer and a light-absorbing material are described. The light-absorbing materials comprise colored components which are decolorized by various forms of energy, such as, for example heat. The novel light-absorbing materials are useful in antihalation layers particularly adapted for photographic elements designed for development with heat.

US Patent:

RE303038, Jun 10, 1980

Filed:

Apr 14, 1978

Appl. No.:

5/896123

Inventors:

Wayne W. Weber - Rochester NY
Donald W. Heseltine - Rochester NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

G03C 184

US Classification:

430512

Abstract:

1-Amino-4-cyano-1,3-butadiene compounds of the formula ##STR1## wherein n is 1 or 2, when n is 1 R. sub. 1 and R. sub. 2 can be the same or different and represent hydrogen, alkyl including substituted alkyl, aryl including substituted aryl or cyclic alkyl groups, except that both R. sub. 1 and R. sub. 2 cannot be hydrogen, or taken together R. sub. 1 and R. sub. 2 represent the elements necessary to complete a cyclic amino group and when n is 2 at least one of R. sub. 1 and R. sub. 2 is alkylene or arylene; G represents an electron withdrawing group. The compounds are especially useful in photographic elements as UV absorbers.

US Patent:

52139549, May 25, 1993

Filed:

Nov 19, 1990

Appl. No.:

7/615080

Inventors:

Wayne W. Weber - Rochester NY
Donald W. Heseltine - Rochester NY

Assignee:

Minnesota Mining and Manufacturing Company - St. Paul MN

International Classification:

G05C 1915

US Classification:

430512

Abstract:

UV-sensitive negative acting silver halide photographic elements are used in contacting processes, and especially dry etch correction processes and can be safely handled under white light. These elements comprise a support base, a negative acting hydrophilic colloidal silver halide emulsion layer comprising photographic silver halide grains, and one or more hydrophilic colloidal layers, wherein said silver halide emulsion support base has on its surface most distant from the layer an antihalation layer comprising a water-removable UV-absorbing compound having significant absorption in the range of from 350 to 400 nm.

US Patent:

39363082, Feb 3, 1976

Filed:

Aug 16, 1973

Appl. No.:

5/388867

Inventors:

Wilbur Seth Gaugh - Webster NY
Donald Warren Heseltine - Webster NY
David Michael Sturmer - Webster NY
John Paul Freeman - Webster NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

G03C 118
G03C 122

US Classification:

96136

Abstract:

Light-sensitive photographic emulsions are provided which feature at least one methine dye containing a 1H-imidazo[4,5-b]pyrazine nucleus.