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Gary Widiger Phones & Addresses

  • 84 Summer St, Cohasset, MA 02025 (781) 258-9284
  • Lexington, MA
  • 341 South Rd, Bedford, MA 01730 (781) 275-4220
  • Burlington, MA
  • Boston, MA

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Gary Widiger Photo 1

Gary Widiger

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Location:
341 South Rd, Bedford, MA 01730
Industry:
Chemicals

Publications

Us Patents

Novel Image Dye-Providing Materials And Photographic Products And Processes

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US Patent:
45981582, Jul 1, 1986
Filed:
Jan 10, 1983
Appl. No.:
6/456978
Inventors:
Stephen R. Herchen - Duxbury MA
Gary N. Widiger - Lexington MA
Assignee:
Polaroid Corporation, Patent Dept. - Cambridge MA
International Classification:
C07D31182
US Classification:
549394
Abstract:
Diffusion transfer photographic color processes and products are described utilizing novel image dye-providing materials which provide image dyes having the chromophoric system represented by the formula ##STR1## wherein X is ##STR2## or --SO. sub. 2 --R. sub. 1 ; Z is H, alkyl or aryl; R is H, alkyl or aryl; DYE is any dye moiety; R. sub. 1 is H, alkyl, aryl, --NH. sub. 2, --NHR. sub. 2, --N(R. sub. 2). sub. 2 or --OR. sub. 2 ; R. sub. 2 is H, alkyl or aryl; and m is 1 or 2. The image dye providing material includes a diffusion control moiety such as a hydroquinonyl group or a precursor thereof and may be diffusible or nondiffusible as a function of the diffusion control moiety.

Hydrazine Dyes

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US Patent:
44206275, Dec 13, 1983
Filed:
Dec 18, 1981
Appl. No.:
6/332020
Inventors:
Gary N. Widiger - Lexington MA
Assignee:
Polaroid Corporation - Cambridge MA
International Classification:
G03C 140
US Classification:
549394
Abstract:
There are described novel compounds which are represented by the formula ##STR1## wherein X is ##STR2## or --SO. sub. 2 R. sub. 1 ; Z is H, alkyl or aryl; R is H, alkyl or aryl; DYE is any dye moiety; R. sub. 1 is H, alkyl, aryl, --NH. sub. 2, --NHR. sub. 2, --N(R. sub. 2). sub. 2 or --OR. sub. 2 ; R. sub. 2 is H, alkyl or aryl; and m is 1 or 2. The compounds are useful as dyes.

Novel Image Dye-Providing Materials And Photographic Products And Processes

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US Patent:
43861504, May 31, 1983
Filed:
Dec 18, 1981
Appl. No.:
6/331995
Inventors:
Stephen R. Herchen - Duxbury MA
Gary N. Widiger - Lexington MA
Assignee:
Polaroid Corporation - Cambridge MA
International Classification:
G03C 140
G03C 110
G03C 554
US Classification:
430222
Abstract:
Diffusion transfer photographic color processes and products are described utilizing novel image dye-providing materials which provide image dyes having the chromophoric system represented by the formula ##STR1## wherein X is ##STR2## or --SO. sub. 2 --R. sub. 1 ; Z is H, alkyl or aryl; R is H, alkyl or aryl; DYE is any dye moiety; R. sub. 1 is H, alkyl, aryl, --NH. sub. 2, --NHR. sub. 2, --N(R. sub. 2). sub. 2 or --OR. sub. 2 ; R. sub. 2 is H, alkyl or aryl; and m is 1 or 2. The image dye providing material includes a diffusion control moiety such as a hydroquinonyl group or a precursor thereof and may be diffusible or nondiffusible as a function of the diffusion control moiety.
Gary N Widiger from Cohasset, MA, age ~78 Get Report