US5019549A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Donor element for thermal imaging containing infra-red absorbing squarylium compound
Assignee: EIDP Inc
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Filing: 1990-10-25
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Granted: 1991-05-28
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Expires: 2010-10-25
Abstract
Abstract These is disclosed donor elements for laser-induced thermal imaging processes containing infra-red absorbing squarylium dyes of the following structure: ##STR1## wherein R 1 , R 2 , R 3 , and R 4 are each independently alkyl groups of from one to eight carbon atoms.
Inventors
- 👤 Reid E. Kellogg
- 👤 Evan D. Laganis
- 👤 Sheau-Hwa Ma
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:56
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/025; B41M5/035; B41M5/26; B41M5/40; B41M5/46; B41M5/465; B41M5/382; B41M5/392; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10S428/914; Y10S430/00; Y10S430/146
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
66 words
A donor element for a laser-induced thermal transfer process, said donor element comprising a support bearing thereon a colorant layer, said colorant layer comprising a colorant and an infra-red absorbing material said infra-red absorbing material having the structure: ##STR4## wherein each of R 1 , R 2 , R 3 , and R 4 is independently an alkyl group of from one to eight carbon atoms.
Claim 2
Dependent Claim
66 words
A donor element for a laser-induced thermal transfer process, said donor element comprising a support bearing thereon a colorant layer, said colorant layer comprising a colorant and an infra-red absorbing material said infra-red absorbing material having the structure: ##STR4## wherein each of R 1 , R 2 , R 3 , and R 4 is independently an alkyl group of from one to eight carbon atoms.
Claim 3
Dependent Claim
22 words
The donor element of claim 1 wherein R 1 , R 2 , R 3 , and R 4 are the same.
Claim 4
Dependent Claim
22 words
The donor element of claim 1 wherein R 1 , R 2 , R 3 , and R 4 are each t-butyl.
Claim 5
Dependent Claim
13 words
The donor element of claim 1 wherein the colorant is a sublimable dye.
Claim 6
Dependent Claim
12 words
The donor element of claim 1 wherein the colorant is a pigment.
Claim 7
Dependent Claim
14 words
The donor element of claim 1 wherein the colorant layer additionally comprises a binder.
Claim 8
Dependent Claim
22 words
The donor element of claim 6 wherein R 1 , R 2 , R 3 , and R 4 are the same.
Claim 9
Dependent Claim
22 words
The donor element of claim 6 wherein R 1 , R 2 , R 3 , and R 4 are each t-butyl.
Claim 10
Dependent Claim
12 words
The donor element of claim 6 wherein the colorant is a pigment.
Claim 11
Dependent Claim
22 words
The donor element of claim 9 wherein R 1 , R 2 , R 3 , and R 4 are the same.
Claim 12
Dependent Claim
22 words
The donor element of claim 9 wherein R 1 , R 2 , R 3 , and R 4 are each t-butyl.
Claim 13
Dependent Claim
13 words
The donor element of claim 6 wherein the colorant is a sublimable dye.
Claim 14
Dependent Claim
22 words
The donor element of claim 12 wherein R 1 , R 2 , R 4 , and R 4 are the same.
Claim 15
Dependent Claim
22 words
The donor element of claim 12 wherein R 1 , R 2 , R 3 , and R 4 are each t-butyl.
Claim 16
Dependent Claim
103 words
A thermal transfer assemblage for a laser-induced thermal transfer process, said thermal transfer assemblage comprising: (a) a donor element comprising a support bearing thereon a colorant layer, said colorant layer comprising a colorant and an infra-red absorbing material, said infra-red absorbing material having the structure: ##STR5## wherein each of R 1 , R 2 , R 3 , and R 4 is independently an alkyl group of from one to eight carbon atoms; and (b) a receiver sheet comprising support and an image-receiving layer; wherein said colorant layer of said donor element is contiguous to said image receiving layer of said receiver sheet.
Claim 17
Dependent Claim
103 words
A thermal transfer assemblage for a laser-induced thermal transfer process, said thermal transfer assemblage comprising: (a) a donor element comprising a support bearing thereon a colorant layer, said colorant layer comprising a colorant and an infra-red absorbing material, said infra-red absorbing material having the structure: ##STR5## wherein each of R 1 , R 2 , R 3 , and R 4 is independently an alkyl group of from one to eight carbon atoms; and (b) a receiver sheet comprising support and an image-receiving layer; wherein said colorant layer of said donor element is contiguous to said image receiving layer of said receiver sheet.
Claim 18
Dependent Claim
23 words
The thermal transfer assemblage of claim 15 wherein R 1 , R 2 , R 3 , and R 4 are the same.
Claim 19
Dependent Claim
23 words
The thermal transfer assemblage of claim 15 wherein R 1 , R 2 , R 3 , and R 4 are each t-butyl.
Claim 20
Dependent Claim
14 words
The thermal transfer assemblage of claim 15 wherein the colorant is a sublimable dye.
Claim 21
Dependent Claim
13 words
The thermal transfer assemblage of claim 15 wherein the colorant is a pigment.
Claim 22
Dependent Claim
15 words
The thermal transfer assemblage of claim 15 wherein the colorant layer additionally comprises a binder.
Claim 23
Dependent Claim
12 words
The thermal transfer assemblage of claim 20 wherein colorant is a pigment.
Claim 24
Dependent Claim
23 words
The thermal transfer assemblage of claim 21 wherein R 1 , R 2 , R 3 , and R 4 are the same.
Claim 25
Dependent Claim
23 words
The thermal transfer assemblage of claim 21 wherein R 1 , R 2 , R 3 , and R 4 are each t-butyl.
Claim 26
Dependent Claim
23 words
The thermal transfer assemblage of claim 20 wherein R 1 , R 2 , R 3 , and R 4 are the same.
Claim 27
Dependent Claim
23 words
The thermal transfer assemblage of claim 20 wherein R 1 , R 2 , R 3 , and R 4 are each t-butyl.
Claim 28
Dependent Claim
14 words
The thermal transfer assemblage of claim 20 wherein the colorant is a sublimable dye.
Claim 29
Dependent Claim
23 words
The thermal transfer assemblage of claim 26 wherein R 1 , R 2 , R 3 , and R 4 are the same.
Claim 30
Dependent Claim
23 words
The thermal transfer assemblage of claim 26 wherein R 1 , R 2 , R 3 , and R 4 are each t-butyl.
References Cited (Backward Citations)
US4942141A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-05-27 | 1994-11-26 | 1995-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-05-27 | 1998-11-26 | 1999-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-05-27 | 2002-11-26 | 2003-05-28 | $7700.00 | Window Closed / Lapsed |