US4513302A
Expired / Lapsed
US
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Pressure-sensitive or heat-sensitive recording material
Assignee: BASF Corp
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Filing: 1983-06-15
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Granted: 1985-04-23
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Expires: 2003-06-15
Abstract
Abstract A pressure-sensitive or heat-sensitive recording material, comprising a support, having a developer or both a color former and a developer in or on the support, wherein the developer consists of a metal complex compound of the formula (R)k-nMe(An)n/r (I) wherein Me is an n-valent metal ion, R is a unidentate or polydentate colorless organic ligand which is complexed with the metal ion through heteroatoms, An is a r-valent anion, k is the coordination number 4 or 6 of the metal ion, depending on the metal, n is 1, 2, 3 or 4, and r is 1 or 2.
Inventors
- 👤 Rosalinde Braun
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:37
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/124; B41M5/132; B41M5/155; B41M5/26; B41M5/30; B41M5/32
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
96 words
A pressure-sensitive or heat-sensitive recording material comprising a support having a developer or both a color former and a developer in or on the support, wherein the developer consists of a metal complex compound of the formula wherein Me is an n-valent metal ion, R is a unidentate or polydentate colorless organic ligand which is complexd with the metal ion through heteroatoms, An is a r-valent anion, k is the coordination number 4 or 6 of the metal ion, depending on the metal, n is 1, 2, 3 or 4, and r is 1 or 2.
Claim 2
Dependent Claim
96 words
A pressure-sensitive or heat-sensitive recording material comprising a support having a developer or both a color former and a developer in or on the support, wherein the developer consists of a metal complex compound of the formula wherein Me is an n-valent metal ion, R is a unidentate or polydentate colorless organic ligand which is complexd with the metal ion through heteroatoms, An is a r-valent anion, k is the coordination number 4 or 6 of the metal ion, depending on the metal, n is 1, 2, 3 or 4, and r is 1 or 2.
Claim 3
Dependent Claim
30 words
A recording material of claim 1, wherein in the formula (1), Me is an ion of a divalent, trivalent or quadrivalent metal having an atomic weight of 24 to 210.
Claim 4
Dependent Claim
17 words
A recording material of claim 2, wherein the metal has an atomic weight of 40 to 140.
Claim 5
Dependent Claim
11 words
A recording material of claim 3, wherein the metal is zinc.
Claim 6
Dependent Claim
28 words
A recording material of claim 1, wherein in the formula (1) R is a unidentate or polydentate ligand which is complexed with the metal ion through nitrogen atoms.
Claim 7
Dependent Claim
89 words
A recording material of claim 5, wherein in the formula (1) R is a 5- or 6-membered aromatic N-heterocyclic ring which is complexed with the metal ion through the nitrogen atom and which is unsubstituted or mono- or disubstituted by hydroxy, cyano, C 1 -C 4 alkyl, C 1 -C 4 alkoxy, vinyl, phenyl, C 1 -C 4 acyl or amino groups, or is fused to a benzene ring which is unsubstituted or mono- or disubstituted by halogen, C 1 -C 4 alkyl or C 1 -C 4 alkoxy.
Claim 8
Dependent Claim
29 words
A recording material of claim 1, wherein in the formula An is a halide, thiocyanate, nitrate, sulfate, phosphate, borate, formate, acetate, propionate, stearate, benzoate, oxalate, citrate or phthalate ion.
Claim 9
Dependent Claim
15 words
A recording material of claim 7, wherein in the formula An is a thiocyanate ion.
Claim 10
Dependent Claim
100 words
A recording material of claim 1, which comprises a color developer of the formula ##STR3## wherein Me 1 is an ion of a divalent, trivalent or quadrivalent metal having an atomic weight of 40 to 140 and each of R 1 and R 2 independently of the other is a unidentate 5- or 6-membered N-heterocyclic ring system of aromatic character which is complexed with the metal ion through the nitrogen atom and which is unsubstituted or mono- or disubstituted by methoxy, C 1 -C 4 alkyl, cyano, vinyl, formyl, phenyl or amino groups, or is fused to a benzene ring.
Claim 11
Dependent Claim
63 words
A recording material of claim 9, wherein in the formula Me 1 is the divalent zinc ion or cadmium ion, and each of R 1 and R 2 is a pyridine, imidazole, quinoline, benzimidazole or benzothiazole ligand which is complexed through a nitrogen atom and in which the N-heterocyclic ring is unsubstituted or mono-substituted by methyl, methoxy, cyano, vinyl, formyl, phenyl or amino.
Claim 12
Dependent Claim
31 words
A recording material of claim 10, wherein in the formula Me 1 is the divalent zinc ion and each of R 1 and R 2 is a 1-methylimidazole or 2-methylimidazole ligand.
Claim 13
Dependent Claim
43 words
A recording material of claim 9, wherein in the formula Me 1 is the divalent zinc ion and each of R 1 and R 2 is a pyridine, 2-methoxypyridine, picoline, imidazole, quinoline, benzimidazole or benzothiazole ligand which is complexed through a nitrogen atom.
Claim 14
Dependent Claim
29 words
A recording material of claim 12, wherein in the formula Me 1 is the divalent zinc ion and each of R 1 and R 2 is a benzothiazole ligand.
Claim 15
Dependent Claim
22 words
A heat-sensitive recording material of claim 9 which comprises, in at least one layer, a color former, a developer and a binder.
Claim 16
Dependent Claim
22 words
A recording material of claim 1 wherein in the formula Me is a divalent zinc ion and R is a α-phenyl-ethylamine ligand.
Claim 17
Dependent Claim
17 words
A pressure-sensitive recording material of claim 1 which contains a color former dissolved in an organic solvent.
Claim 18
Dependent Claim
15 words
A pressure-sensitive recording material of claim 16, wherein the color former is encapsulated in microcapsules.
Claim 19
Dependent Claim
51 words
A pressure-sensitive recording material of claim 17, wherein the encapsulated color former is applied in the form of a layer to the back of a transfer sheet and the developer of the formula of claim 1 is applied in the form of a layer to the face of a receiver sheet.
Claim 20
Dependent Claim
45 words
A pressure-sensitive recording material of claim 17, wherein the encapsulated color former is applied in the form of a layer to the back of a transfer sheet and the developer is applied in the form of a layer to the face of a receiver sheet.
Claim 21
Dependent Claim
22 words
A heat-sensitive recording material of claim 1 which comprises, in at least one layer, a color former, a developer and a binder.
Claim 22
Dependent Claim
16 words
A pressure-sensitive or heat-sensitive recording material of claim 1 which further contains a different color developer.
References Cited (Backward Citations)
JPS548016A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-04-22 | 1988-10-22 | 1989-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-04-22 | 1992-10-22 | 1993-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-04-22 | 1996-10-22 | 1997-04-23 | $7700.00 | Window Closed / Lapsed |