US4965237A
Expired / Lapsed
US
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Thermal printing material
Assignee: Mitsubishi Paper Mills Ltd
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Filing: 1987-05-13
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Granted: 1990-10-23
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Expires: 2007-05-13
Abstract
Abstract PCT No. PCT/JP87/00300 Sec. 371 Date Dec. 31, 1987 Sec. 102(e) Date Dec. 31, 1987 PCT Filed May 13, 1987 PCT Pub. No. WO87/06885 PCT Pub. Date Nov. 19, 1987.This invention relates to a thermal printing material comprising a substrate and a thermal printing layer formed thereon containing an aromaticity-possessing isocyanate compound, an imino compound having at least one>C=NH group which reacts with said aromaticity-possessing isocyanate compound on heating to produce color, and one or more aniline derivatives having at least one amino group, said thermal printing layer being intended to improve the image storage properties, in particular, the storage properties of color-undeveloped portion (ground), and it can be utilized in recorders for measurements, facsimiles, printers, terminals of computers, labels, and automatic ticket vending machines.
Inventors
- 👤 Shigetoshi Hiraishi
- 👤 Kazuo Kabashima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:41
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/26; B41M5/30; B41M5/337; B41M5/3375
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
53 words
A thermal printing material comprising a substrate and a thermal printing layer formed thereon comprising an aromaticity-possessing isocyanate compound, an imino compound having at least one >C═NH group which reacts with said aromaticity-possessing isocyanate compound on heating to produce color, and one or more aniline derivatives having at least one unsubstituted amino group.
Claim 2
Dependent Claim
53 words
A thermal printing material comprising a substrate and a thermal printing layer formed thereon comprising an aromaticity-possessing isocyanate compound, an imino compound having at least one >C═NH group which reacts with said aromaticity-possessing isocyanate compound on heating to produce color, and one or more aniline derivatives having at least one unsubstituted amino group.
Claim 3
Dependent Claim
141 words
A thermal printing material according to claim 1, wherein the aniline derivative having at least one unsubstituted amino group is a compound represented by the general formula: ##STR15## wherein each of R 1 and R 2 is hydrogen, an alkyl group, an alkoxyl group, a halogen or an amino group; and X 1 is ##STR16## or --SO 2 R 6 in which R 3 is a substituted or unsubstituted alkoxyl group, an aryl group, an alkyl group, a substituted or unsubstituted amino group, or a substituted or unsubstituted anilino group, each of R 4 and R 5 is hydrogen, an alkyl group, or ##STR17## (wherein R 7 is an alkyl group or an aryl group), and R 6 is a substituted or unsubstituted amino group, a substituted or unsubstituted aryl group, a substituted or unsubstituted aryloxy group, or an aralkyl group.
Claim 4
Dependent Claim
70 words
A thermal printing material according to claim 2, wherein the aniline derivative having at least one amino group is a compound represented by the general formula: ##STR18## wherein R 12 is hydrogen, an alkyl group, an alkoxyl group or a halogen; and R 3 is a substituted or unsubstituted alkoxyl group, an aryl group, an alkyl group, a substituted or unsubstituted amino group, or a substituted or unsubstituted anilino group.
Claim 5
Dependent Claim
71 words
A thermal printing material according to claim 2, wherein the aniline derivative having at least one amino group is a compound represented by the general formula: ##STR19## wherein each of R 13 and R 14 is hydrogen, an alkyl group or an alkoxyl group; and each of R 4 and R 5 is hydrogen, an alkyl group, or ##STR20## in which R 7 is an alkyl group or an aryl group.
Claim 6
Dependent Claim
70 words
A thermal printing material according to claim 2, wherein the aniline derivative having at least one unsubstituted amino group is a compound represented by the general formula: ##STR21## wherein R 6 is a substituted or unsubstituted amino group, an aryl group, a substituted or unsubstituted aryloxy group, or an aralkyl group; and each of R 15 and R 16 is hydrogen, a halogen, an alkyl group or an alkoxyl group.
Claim 7
Dependent Claim
14 words
A thermal printing material according to claim 5, wherein the aniline derivative is 2-methoxy-5-N,N-diethylsufamoylaniline.
Claim 8
Dependent Claim
33 words
A thermal printing material according to claim 5, wherein the general formula, R 6 is a substituted amino group; and each of R 15 and R 16 is hydrogen or an alkoxy group.
Claim 9
Dependent Claim
96 words
A thermal printing material according to claim 1, wherein the aniline derivative having at least one amino group is a compound represented by the general formula: ##STR22## wherein each of R 8 , R 9 , R 10 and R 11 is hydrogen, a halogen, an alkyl group, an alkoxyl group or an amino group; each of X 2 and X 3 is an amino group, or ##STR23## and Y 1 is --SO 2 --, --O--, --(S) n --, --(CH 2 ) n --, ##STR24## or indicates that nothing is present, n being 1 or 2.
Claim 10
Dependent Claim
41 words
A thermal printing material according to claim 8, wherein the aniline derivative having at least one amino group is a compound represented by the general formula: ##STR25## wherein each of R 17 and R 18 is hydrogen or an alkyl group.
Claim 11
Dependent Claim
67 words
A thermal printing material according to claim 8, wherein the aniline derivative having at least one amino group is a compound represented by the general formula: ##STR26## wherein each of R 19 , R 20 , R 21 and R 22 is hydrogen, a halogen, an alkoxyl group or an alkyl group, or R 19 and R 21 , when taken together, may form a sulfonyl group.
Claim 12
Dependent Claim
73 words
A thermal printing material according to claim 8, wherein the aniline derivative having at least one amino group is a compound represented by the general formula: ##STR27## wherein each of R 22 , R 23 , R 24 and R 25 is hydrogen, a halogen, an alkyl group or an amino group; and Y 2 is --O--, --(S) n --, --(CH 2 ) n --, ##STR28## in which n is 1 or 2.
Claim 13
Dependent Claim
38 words
A thermal printing material according to claim 1, wherein the aniline derivative having at least one amino group is contained in an amount of 10 to 500% by weight based on the weight of the aromaticity-possessing isocyanate compound.
Claim 14
Dependent Claim
38 words
A thermal printing material according to claim 12, wherein the aniline derivative having at least one amino group is contained in an amount of 15 to 400% by weight based on the weight of the aromaticity-possessing isocyanate compound.
Claim 15
Dependent Claim
38 words
A thermal printing material according to claim 13, wherein the aniline derivative having at least one amino group is contained in an amount of 20 to 200% by weight based on the weight of the aromaticity-possessing isocyanate compound.
References Cited (Backward Citations)
US4521793A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-10-22 | 1994-04-23 | 1994-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-10-22 | 1998-04-23 | 1998-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-10-22 | 2002-04-23 | 2002-10-23 | $7700.00 | Window Closed / Lapsed |