US4262936A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Color developing ink containing aliphatic esters with 8-25 carbon atoms
Assignee: Fujifilm Holdings Corp
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Filing: 1979-01-05
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Granted: 1981-04-21
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Expires: 1999-01-05
Abstract
Abstract Color developing ink suitable for pressure-sensitive recording, especially applicable to printing machines utilizing relief and offset printing techniques, which comprises (i) at least one proton-releasing or electron accepting solid acid selected from the group consisting of phenol resins, aromatic carboxylic acids and the metal salts thereof, and (ii) an aliphatic ester containing 8 to 25 carbon atoms, and which has stable printing aptitude and adequate color developing ability, does not swell a rubber roll installed in a printing machine and can provide colored image with excellent light resistance.
Inventors
- 👤 Akio Miyamoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:56
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/124; B41M5/132; B41M5/155; Y; Y10; Y10S; Y10S428/00; Y10S428/914; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24893; Y10T428/24901
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
67 words
A relief or offset printing color developing ink for pressure-sensitive recording which comprises: (i) at least one compound selected from a group consisting of aromatic carboxylic acids and the metal salts thereof, and (ii) an aliphatic ester having 8 to 25 carbon atoms, wherein said ester is the condensation product of a C 5 -C 20 aliphatic alcohol and a C 2 -C 10 aliphatic monocarboxylic acid.
Claim 2
Dependent Claim
67 words
A relief or offset printing color developing ink for pressure-sensitive recording which comprises: (i) at least one compound selected from a group consisting of aromatic carboxylic acids and the metal salts thereof, and (ii) an aliphatic ester having 8 to 25 carbon atoms, wherein said ester is the condensation product of a C 5 -C 20 aliphatic alcohol and a C 2 -C 10 aliphatic monocarboxylic acid.
Claim 3
Dependent Claim
20 words
The color developing ink of claim 1, wherein said aromatic carboxylic acid is a benzoic acid or a derivative thereof.
Claim 4
Dependent Claim
17 words
The color developing ink of claim 2, wherein said benzoic acid is substituted with a hydroxyl group.
Claim 5
Dependent Claim
32 words
The color developing ink of claim 1, wherein said ester is selected from the group consisting of 2,2,4-trimethyl-1,3-pentanediol monoisobutyrate, 2,2,4-trimethyl-1,3-pentanediol diisobutyrate, 2,2-dimethyl-1,3-pentanediol diisobutyrate, 2,4-dimethyl-2,4-pentanediol diacetate, 2,2-dimethyl-1,3-butanediol diisobutyrate, 2-methyl-2,4-pentanediol dipropionate and 2,3,3,4-tetramethyl-2,4-pentanediol monoacetate.
Claim 6
Dependent Claim
17 words
The color developing ink of claim 1, wherein said alcohol is a C 6 -C 12 diol.
Claim 7
Dependent Claim
27 words
The color developing ink of claim 5, wherein said ester has a solubility in water of 2 g/100 g H 2 O or less at 20° C.
Claim 8
Dependent Claim
29 words
The color developing ink of claim 1, wherein said said aromatic carboxylic acid or metal salt thereof is present in an amount of about 10 to 70 weight %.
Claim 9
Dependent Claim
21 words
The color developing ink of claim 7, wherein said ester is present in an amount of 10 to 70 weight %.
Claim 10
Dependent Claim
17 words
A color developer sheet comprising a support having coated thereon the color developing ink of claim 1.
Claim 11
Dependent Claim
24 words
The color developer sheet of claim 9, wherein said ink is coated in an amount of 0.2 g/m 2 to 8.0 g/m 2 .
Claim 12
Dependent Claim
19 words
The color developing ink of claim 1, wherein said aromatic carboxylic acid is naphthoic acid or a derivative thereof.
Claim 13
Dependent Claim
20 words
The color developing ink of claim 1, wherein said ink contains a petroleum fraction of 240° C. to 315° C.
Claim 14
Dependent Claim
22 words
The color developer sheet of claim 9, wherein said sheet is printed and coated utilizing a relief or an offset printing technique.
Claim 15
Dependent Claim
13 words
The color developing ink of claim 1, which is free of a binder.
Claim 16
Dependent Claim
28 words
The color developing ink of claim 1, wherein said color developing ink is reacted in conjunction with a substantially colorless organic compound to provide a colored reaction product.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-04-20 | 1984-10-20 | 1985-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-04-20 | 1988-10-20 | 1989-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-04-20 | 1992-10-20 | 1993-04-21 | $7700.00 | Window Closed / Lapsed |