US4757046A
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US
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Merocyanine dye-donor element used in thermal dye transfer
Assignee: Eastman Kodak Co
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Filing: 1987-06-08
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Granted: 1988-07-12
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Expires: 2007-06-08
Abstract
Abstract A dye-donor element for thermal dye transfer comprises a support having thereon a merocyanine dye dispersed in a polymeric binder, the merocyanine dye being capable of transfer by diffusion to a dye-receiving element upon the application of heat and being incapable of substantial photolysis, the merocyanine dye being substituted or unsubstituted on the bridging methine carbon atoms. In a preferred embodiment, the merocyanine dye has the formula: ##STR1## wherein: A represents --COR, --COOR, --CONHR, --CN, --SO 2 R or --SO 2 NR 2 ; or A may be combined together with R 1 to form a heterocyclic or carbocyclic ring system; R 1 represents --NHR, --NR 2 , --OR, --SR, or --R; n represents 0 or 1; Z represents the atoms necessary to complete a 5- or 6-membered substituted or unsubstituted heterocyclic ring; and each R independently represents a substituted or unsubstituted alkyl group of from 1 to about 6 carbon atoms or a substituted or unsubstituted aryl group of from about 6 to about 10 carbon atoms.
Inventors
- 👤 Gary W. Byers
- 👤 Derek Chapman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:11
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/50; B41M5/52; B41M5/5218; B41M5/26; B41M5/382; B41M5/385; B41M5/3854; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10S428/914; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31786
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
63 words
A substantially nonphotobleachable dye-donor element for thermal dye transfer comprising a support having thereon a dye layer comprising a merocyanine dye dispersed in a polymeric binder, said merocyanine dye being capable of transfer by diffusion to a dye-receiving element upon the application of heat and being incapable of substantial photolysis, said merocyanine dye being substituted or unsubstituted on the bridging methine carbon atoms.
Claim 2
Dependent Claim
63 words
A substantially nonphotobleachable dye-donor element for thermal dye transfer comprising a support having thereon a dye layer comprising a merocyanine dye dispersed in a polymeric binder, said merocyanine dye being capable of transfer by diffusion to a dye-receiving element upon the application of heat and being incapable of substantial photolysis, said merocyanine dye being substituted or unsubstituted on the bridging methine carbon atoms.
Claim 3
Dependent Claim
113 words
The element of claim 1 wherein said merocyanine dye has the formula: ##STR16## wherein: A represents --COR, --COOR, --CONHR, --CN, --SO 2 R or --SO 2 NR 2 ; or A may be combined together with R 1 to form a heterocyclic or carbocyclic ring system; R 1 represents --NHR, --NH 2 , --OR, --SR, or --R; n represents 0 or 1; Z represents the atoms necessary to complete a 5- or 6-membered substituted or unsubstituted heterocyclic ring; and each R independently represents a substituted or unsubstituted alkyl group of from 1 to about 6 carbon atoms or a substituted or unsubstituted aryl group of from about 6 to about 10 carbon atoms.
Claim 4
Dependent Claim
49 words
The element of claim 2 wherein A and R 1 are combined together to form the following ring system: ##STR17## wherein R 2 is CH 3 or C 6 H 5 ; R 3 is CH 3 , H or COOC 2 H 5 ; and n is 0.
Claim 5
Dependent Claim
24 words
The element of claim 2 wherein A and R 1 are combined together to form the following ring system: ##STR18## and n is 0.
Claim 6
Dependent Claim
29 words
The element of claim 2 wherein A is --CN, n is 0 and R 1 is phenyl or an alkyl group of from 1 to about 6 carbon atoms.
Claim 7
Dependent Claim
13 words
The element of claim 2 wherein said merocyanine dye is of yellow hue.
Claim 8
Dependent Claim
13 words
The element of claim 2 wherein said merocyanine dye is of magenta hue.
Claim 9
Dependent Claim
13 words
The element of claim 2 wherein said merocyanine dye is of cyan hue.
Claim 10
Dependent Claim
35 words
The element of claim 1 wherein said support comprises poly(ethylene terephthalate), said dye layer comprises sequential repeating areas of cyan, magenta and yellow dye, and at least one of said dyes being said merocyanine dye.
Claim 11
Dependent Claim
91 words
In a process of forming a dye transfer image comprising imagewise-heating a substantially nonphotobleachable dye-donor element comprising a support having thereon a dye layer comprising a dye dispersed in a polymeric binder and transferring a dye image to a dye-receiving element to form said dye transfer image, the improvement wherein said dye comprises a merocyanine dye which is capable of transfer by diffusion to a dye-receiving element upon the application of heat and is incapable of substantial photolysis, said merocyanine dye being substituted or unsubstituted on the bridging methine carbon atoms.
Claim 12
Dependent Claim
91 words
In a process of forming a dye transfer image comprising imagewise-heating a substantially nonphotobleachable dye-donor element comprising a support having thereon a dye layer comprising a dye dispersed in a polymeric binder and transferring a dye image to a dye-receiving element to form said dye transfer image, the improvement wherein said dye comprises a merocyanine dye which is capable of transfer by diffusion to a dye-receiving element upon the application of heat and is incapable of substantial photolysis, said merocyanine dye being substituted or unsubstituted on the bridging methine carbon atoms.
Claim 13
Dependent Claim
113 words
The process of claim 10 wherein said merocyanine dye has the formula: ##STR19## wherein: A represents --COR, --COOR, --CONHR, --CN, --SO 2 R or --SO 2 NR 2 ; or A may be combined together with R 1 to form a heterocyclic or carbocyclic ring system; R 1 represents --NHR, --NR 2 , --OR, --SR, or --R; n represents 0 or 1; Z represents the atoms necessary to complete a 5- or 6-membered substituted or unsubstituted heterocyclic ring; and each R independently represents a substituted or unsubstituted alkyl group of from 1 to about 6 carbon atoms or a substituted or unsubstituted aryl group of from about 6 to about 10 carbon atoms.
Claim 14
Dependent Claim
51 words
The process of claim 10 wherein said support is poly(ethylene terephthalate) which is coated with sequential repeating areas of cyan, magenta and yellow dye, at least one of said dyes being said merocyanine dye, and said process steps are sequentially performed for each color to obtain a three-color dye transfer image.
Claim 15
Dependent Claim
112 words
In a thermal dye transfer assemblage comprising: (a) a substantially nonphotobleachable dye-donor element comprising a support having thereon a dye layer comprising a dye dispersed in a polymeric binder, and (b) a dye-receiving element comprising a support having thereon a dye image-receiving layer, said dye-receiving element being in a superposed relationship with said dye-donor element so that said dye layer is in contact with said dye image-receiving layer, the improvement wherein said dye comprises a merocyanine dye which is capable of transfer by diffusion to a dye-receiving element upon the application of heat and is incapable of substantial photolysis, said merocyanine dye being substituted or unsubstituted on the bridging methine carbon atoms.
Claim 16
Dependent Claim
112 words
In a thermal dye transfer assemblage comprising: (a) a substantially nonphotobleachable dye-donor element comprising a support having thereon a dye layer comprising a dye dispersed in a polymeric binder, and (b) a dye-receiving element comprising a support having thereon a dye image-receiving layer, said dye-receiving element being in a superposed relationship with said dye-donor element so that said dye layer is in contact with said dye image-receiving layer, the improvement wherein said dye comprises a merocyanine dye which is capable of transfer by diffusion to a dye-receiving element upon the application of heat and is incapable of substantial photolysis, said merocyanine dye being substituted or unsubstituted on the bridging methine carbon atoms.
Claim 17
Dependent Claim
113 words
The assemblage of claim 13 wherein said merocyanine dye has the formula: ##STR20## wherein: A represents --COR, --COOR, --CONHR, --CN, --SO 2 R or --SO 2 NR 2 ; or A may be combined together with R 1 to form a heterocyclic or carbocyclic ring system; R 1 represents --NHR, --NR 2 , --OR, --SR, or --R; n represents 0 or 1; Z represents the atoms necessary to complete a 5- or 6-membered substituted or unsubstituted heterocyclic ring; and each R independently represents a substituted or unsubstituted alkyl group of from 1 to about 6 carbon atoms or a substituted or unsubstituted aryl group of from about 6 to about 10 carbon atoms.
Claim 18
Dependent Claim
49 words
The assemblage of claim 14 wherein A and R 1 are combined together to form the following ring system: ##STR21## wherein R 2 is CH 3 or C 6 H 5 ; R 3 is CH 3 , H or COOC 2 H 5 ; and n is 0.
Claim 19
Dependent Claim
24 words
The assemblage of claim 14 wherein A and R 1 are combined together to form the following ring system: ##STR22## and n is 0.
Claim 20
Dependent Claim
29 words
The assemblage of claim 14 wherein A is --CN, n is 0 and R 1 is phenyl or an alkyl group of from 1 to about 6 carbon atoms.
Claim 21
Dependent Claim
13 words
The assemblage of claim 14 wherein said merocyanine dye is of yellow hue.
Claim 22
Dependent Claim
13 words
The assemblage of claim 14 wherein said merocyanine dye is of magenta hue.
Claim 23
Dependent Claim
13 words
The assemblage of claim 14 wherein said merocyanine dye is of cyan hue.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-07-12 | 1992-01-11 | 1992-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-07-12 | 1996-01-11 | 1996-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-07-12 | 2000-01-11 | 2000-07-12 | $7700.00 | Window Closed / Lapsed |