US4348234A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coating compositions for the production of a recording material
Assignee: BASF Corp
•
Filing: 1980-03-14
•
Granted: 1982-09-07
•
Expires: 2000-03-14
Abstract
Abstract Coating compositions for the production of a pressure-sensitive recording material based on a color former composition and a color developer composition. The color developer composition contains, as developer, at least two water-soluble inorganic metal salts, at least one of which is a nitrate, and is preferably in the form of a wax emulsion. Preferred color developers are mixtures of halides and nitrates.
Inventors
- 👤 Manuel Cespon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:04
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/124; B41M5/132; B41M5/155; B41M5/1555
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
69 words
A coating composition for the production of a pressure-sensitive recording material based on a color former composition and a color developer composition, said color developer composition containing, a color developer consisting essentially of a mixture of at least two water-soluble inorganic metal salts, including at least one nitrate with a molecular weight of 150 to 350 and at least one halide with a molecular weight of 120 to 280.
Claim 2
Dependent Claim
69 words
A coating composition for the production of a pressure-sensitive recording material based on a color former composition and a color developer composition, said color developer composition containing, a color developer consisting essentially of a mixture of at least two water-soluble inorganic metal salts, including at least one nitrate with a molecular weight of 150 to 350 and at least one halide with a molecular weight of 120 to 280.
Claim 3
Dependent Claim
24 words
A coating composition according to claim 1, wherein the metal salts are derived from polyvalent metals having an atomic weight of 24 to 210.
Claim 4
Dependent Claim
24 words
A coating composition according to claim 1, wherein the metal salts are derived from polyvalent metals having an atomic weight of 40 to 120.
Claim 5
Dependent Claim
38 words
A coating composition according to claim 1, wherein the colour developer composition contains a binary or ternary mixture of halides and nitrates of a metal selected from the group consisting of tin, zinc, manganese, iron, cobalt, and nickel.
Claim 6
Dependent Claim
28 words
A coating composition according to claim 1, wherein the nitrate is in the form of the nitrate of zinc, nickel, manganese or iron, or of a mixture thereof.
Claim 7
Dependent Claim
15 words
A coating composition according to claim 1, wherein the developer composition additionally contains maleic acid.
Claim 8
Dependent Claim
29 words
A coating composition according to claim 1, wherein the content of metal salt is 10 to 80% by weight, based on the solids content of the colour developer composition.
Claim 9
Dependent Claim
17 words
A coating composition according to claim 1, wherein the colour developer composition consists of a wax emulsion.
Claim 10
Dependent Claim
31 words
A coating composition according to claim 8, wherein the wax content of the colour developer composition is 5 to 85% by weight, based on the solids content of the developer composition.
Claim 11
Dependent Claim
26 words
A coating composition according to claim 1, wherein the colour developer composition contains a solvent in which the reagents have a solubility of 5 to 100%.
Claim 12
Dependent Claim
58 words
A coating composition according to claim 1, wherein the colour developer composition contains a binary or ternary mixture of halides and nitrates of at least one metal selected from the group consisting of aluminum, barium, lead, cadmium, calcium, chromium, iron, gallium, cobalt, copper, magnesium, manganese, molybdenum, nickel, mercury, silver, strontium, tantalum, titanium, vanadium, tungsten, zinc, tin and zirconium.
Claim 13
Dependent Claim
21 words
A coating composition according to claim 1, wherein the ratio of metal halide to nitrate is between about 1:9 to 9:1.
References Cited (Backward Citations)
US2505470A
Cited
US2505481A
Cited
US2505486A
Cited
US2505485A
Cited
US2505482A
Cited
US2505471A
Cited
US2505484A
Cited
US2505483A
Cited
US2505489A
Cited
US2505488A
Cited
US2505487A
Cited
US2505475A
Cited
US2505473A
Cited
US2505477A
Cited
US2505472A
Cited
US2505476A
Cited
US2505479A
Cited
US2505480A
Cited
US2505478A
Cited
US2505474A
Cited
DE1807894U
Cited
US3516845A
Cited
US3632364A
Cited
GB1253056A
Cited
DE2163905A1
Cited
US3834929A
Cited
US3894168A
Cited
US3732120A
Cited
US3843384A
Cited
GB1426641A
Cited
DE2303405C2
Cited
GB1429069A
Cited
GB1472580A
Cited
AT329595B
Cited
AT329596B
Cited
AT329597B
Cited
US4096314A
Cited
GB1526144A
Cited
US4183553A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-09-06 | 1986-03-08 | 1986-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-09-06 | 1990-03-08 | 1990-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-09-06 | 1994-03-08 | 1994-09-07 | $7700.00 | Window Closed / Lapsed |