Ronald F Cieciuch

US Patent:

43862160, May 31, 1983

Filed:

Apr 24, 1980

Appl. No.:

6/143282

Inventors:

Louis Locatell - Wellesley Hills MA
Howard G. Rogers - Weston MA
Ruth C. Bilofsky - Lexington MA
Ronald F. Cieciuch - Brookline MA
Charles M. Zepp - Boylston MA

Assignee:

Polaroid Corporation - Cambridge MA

International Classification:

C07D31182

US Classification:

549394

Abstract:

Diffusion transfer color processes and products are disclosed employing image-dye providing materials providing magenta image dyes having the chromophoric system represented by the formula ##STR1## wherein each R is the same or different and is an alkyl group, and each X is the same or different and is hydrogen or an alkyl group (including substituted alkyl). The dye image-providing material includes a diffusion control moiety, such as a hydroquinonyl group, and may be diffusible or nondiffusible as a function of the diffusion control moiety.

US Patent:

46197842, Oct 28, 1986

Filed:

Oct 27, 1980

Appl. No.:

6/200953

Inventors:

Louis Locatell - Wellesley MA
Charles M. Zepp - Boylston MA
Ronald F. Cieciuch - Brookline MA

Assignee:

Polaroid Corporation, Patent Dept. - Cambridge MA

International Classification:

C07D20912
C07D21514
C07D22316

US Classification:

540593

Abstract:

There are disclosed diffusion transfer color processes and products which employ novel image dye-providing materials which provide image dyes having the chromophoric system represented by the formula ##STR1## X is H, alkyl, aryl or substituted aryl; W is H or alkyl, R is H or alkyl; m and n are each integers of from 2 to 6. The image dye-providing material includes a diffusion control moiety such as a hydroquinonyl group and may be diffusible or nondiffusible as a function of the diffusion control moiety.

US Patent:

42647010, Apr 28, 1981

Filed:

Apr 24, 1980

Appl. No.:

6/143284

Inventors:

Louis Locatell - Wellesley Hills MA
Howard G. Rogers - Weston MA
Ruth C. Bilofsky - Lexington MA
Ronald F. Cieciuch - Brookline MA
Charles M. Zepp - Boylston MA

Assignee:

Polaroid Corporation - Cambridge MA

International Classification:

G03C 140
G03C 554

US Classification:

430 17

Abstract:

Diffusion transfer color processes and products are disclosed employing image-dye providing materials providing magenta image dyes having the chromophoric system represented by the formula ##STR1## wherein each R is the same or different and is an alkyl group, and each X is the same or different and is hydrogen or an alkyl group (including substituted alkyl). The dye image-providing material includes a diffusion control moiety, such as a hydroquinonyl group, and may be diffusible or nondiffusible as a function of the diffusion control moiety.

US Patent:

44057881, Sep 20, 1983

Filed:

Dec 26, 1979

Appl. No.:

6/106898

Inventors:

Louis Locatell - Wellesley Hills MA
Charles M. Zepp - Boylston MA
Ronald F. Cieciuch - Brookline MA

Assignee:

Polaroid Corporation - Cambridge MA

International Classification:

C07D40504
C07D40514

US Classification:

546165

Abstract:

There are described novel dye compounds which are represented by the formula ##STR1## wherein A is ##STR2## X is H, alkyl, aryl such as phenyl or naphthyl, or substituted aryl; W is H or alkyl; R is H or alkyl; Z and Y are each H or monovalent radicals; l and p are each 1 or 2 and m and n are each integers of from 2-6.

US Patent:

42672511, May 12, 1981

Filed:

Dec 26, 1979

Appl. No.:

6/106506

Inventors:

Louis Locatell - Wellesley Hills MA
Charles M. Zepp - Boylston MA
Ronald F. Cieciuch - Brookline MA

Assignee:

Polaroid Corporation - Cambridge MA

International Classification:

G03C 140
G03C 700
G03C 554
G03C 110

US Classification:

430224

Abstract:

There are disclosed diffusion transfer color processes and products which employ novel image dye-providing materials which provide image dyes having the chromophoric system represented by the formula ##STR1## wherein A is ##STR2## X is H, alkyl, aryl or substituted aryl; W is H or alkyl, R is H or alkyl; m and n are each integers of from 2 to 6. The image dye-providing material includes a diffusion control moiety such as a hydroquinonyl group and may be diffusible or nondiffusible as a function of the diffusion control moiety.