Patent US4833123A successfully refreshed from Google Patents.
US4833123A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Yellow dye-donor element used in thermal transfer and thermal transfer and thermal transfer sheet using it
Assignee: Sumitomo Chemical Co Ltd
•
Filing: 1988-10-04
•
Granted: 1989-05-23
•
Expires: 2008-10-04
Abstract
Abstract A yellow dye-donor element for thermal dye transfer and having good characteristics for ink formation, and a thermal transfer sheet made using the yellow dye-element, having adequate sublimatability or vaporizability, good coloring, with a high printing density on receiving papers, and high storage stability and light stability of printing image, and employable as a yellow color among the three primary colors are provided. The above yellow color-element comprises a yellow dye dispersed or dissolved in a polymeric binder, which is represented by the formula (I): <IMAGE> (I) wherein R1 is an alkyl group of C1-C12, an allyl group or a crotyl group; X is hydrogen, halogen or a C1-C4 lower alkyl or C1-C4 lower alkoxy group; Y is a C1-C12 alkyl, C5-C7 cycloalkyl, C1-C4 alkoxy, phenyl, tolyl, or phenoxy group; and A is -CH2CH2-, -CH2CH2O-, or -CH2CH2CH2-.
Inventors
- 👤 Kiyoyasu Hashimoto
- 👤 Takashi Omura
- 👤 Yasuyuki Suzuki
- 👤 Yoshiaki Hayashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:24
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/26; B41M5/382; B41M5/385; B41M5/3854; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10S428/914
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
115 words
A yellow color-donor element used in thermal transfer, which comprises a yellow dye dispersed or dissolved in a polymeric binder, the said yellow dye being represented by the following formula (I): wherein R 1 is an alkyl group of C 1 -C 12 , an allyl group or a crotyl group; X is hydrogen, halogen, or a C 1 -C 4 lower alkyl or C 1 -C 4 lower alkoxy group; Y is a C 1 -C 12 alkyl, C 5 -C 7 cycloalkyl, C 1 -C 4 alkoxy, phenyl, tolyl, or phenoxy group; and A is --CH 2 CH 2 --, --CH 2 CH 2 O--, or --CH 2 CH 2 CH 2 --.
Claim 2
Dependent Claim
115 words
A yellow color-donor element used in thermal transfer, which comprises a yellow dye dispersed or dissolved in a polymeric binder, the said yellow dye being represented by the following formula (I): wherein R 1 is an alkyl group of C 1 -C 12 , an allyl group or a crotyl group; X is hydrogen, halogen, or a C 1 -C 4 lower alkyl or C 1 -C 4 lower alkoxy group; Y is a C 1 -C 12 alkyl, C 5 -C 7 cycloalkyl, C 1 -C 4 alkoxy, phenyl, tolyl, or phenoxy group; and A is --CH 2 CH 2 --, --CH 2 CH 2 O--, or --CH 2 CH 2 CH 2 --.
Claim 3
Dependent Claim
20 words
The yellow color-donor element according to claim 1 wherein X in the formula (I) is hydrogen or a methyl group.
Claim 4
Dependent Claim
24 words
The yellow colo-donor element according to claim 1 wherein Y in the formula (I) is a phenyl or C 5 -C 7 cycloalkyl group.
Claim 5
Dependent Claim
26 words
The yellow color-donor element according to claim 1 wherein A in the formula (I) is --CH 2 CH 2 O-- or --CH 2 CH 2 --.
Claim 6
Dependent Claim
19 words
The yellow color-donor element according to claim 1 wherein the yellow dye is that represented by the formula: ##STR18##
Claim 7
Dependent Claim
19 words
The yellow color-donor element according to claim 1 wherein the yellow dye is that represented by the formula: ##STR19##
Claim 8
Dependent Claim
19 words
The yellow color-donor element according to claim 1 wherein the yellow dye is that represented by the formula: ##STR20##
Claim 9
Dependent Claim
134 words
A thermal transfer sheet which comprises a supporting material and a yellow dye-donor element layer comprising a yellow dye dispersed or dissolved in a polymeric binder, said layer being applied onto one side surface of the supporting material and the said yellow dye being represented by the formula (I): ##STR21## wherein R 1 is an alkyl group of C 1 -C 12 , an allyl group or a crotyl group; X is hydrogen, halogen, or a C 1 -C 4 lower alkyl or C 1 -C 4 lower alkoxy group; Y is a C 1 -C 12 alkyl, C 5 -C 7 cycloalkyl, C 1 -C 4 alkoxy, phenyl, tolyl, or phenoxy group; and A is --CH 2 CH 2 --, --CH 2 CH 2 O--, or --CH 2 CH 2 CH 2 --.
Claim 10
Dependent Claim
134 words
A thermal transfer sheet which comprises a supporting material and a yellow dye-donor element layer comprising a yellow dye dispersed or dissolved in a polymeric binder, said layer being applied onto one side surface of the supporting material and the said yellow dye being represented by the formula (I): ##STR21## wherein R 1 is an alkyl group of C 1 -C 12 , an allyl group or a crotyl group; X is hydrogen, halogen, or a C 1 -C 4 lower alkyl or C 1 -C 4 lower alkoxy group; Y is a C 1 -C 12 alkyl, C 5 -C 7 cycloalkyl, C 1 -C 4 alkoxy, phenyl, tolyl, or phenoxy group; and A is --CH 2 CH 2 --, --CH 2 CH 2 O--, or --CH 2 CH 2 CH 2 --.
Claim 11
Dependent Claim
20 words
The thermal transfer sheet according to claim 8 wherein X in the formula (I) is hydrogen or a methyl group.
Claim 12
Dependent Claim
24 words
The thermal transfer sheet according to claim 8 wherein Y in the formula (I) is a phenyl or C 5 -C 7 cycloalkyl group.
Claim 13
Dependent Claim
26 words
The thermal transfer sheet according to claim 8 wherein A in the formula (I) is --CH 2 CH 2 O-- or --CH 2 CH 2 --.
Claim 14
Dependent Claim
19 words
The thermal transfer sheet according to claim 8 wherein the yellow dye is that represented by the formula: ##STR22##
Claim 15
Dependent Claim
19 words
The thermal transfer sheet according to claim 8 wherein the yellow dye is that represented by the formula: ##STR23##
Claim 16
Dependent Claim
19 words
The thermal transfer sheet according to claim 8 wherein the yellow dye is that represented by the formula: ##STR24##
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-05-22 | 1992-11-21 | 1993-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-05-22 | 1996-11-21 | 1997-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-05-22 | 2000-11-21 | 2001-05-23 | $7700.00 | Window Closed / Lapsed |