US4596722A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrosensitive media and recording process
Assignee: SALA HOLDINGS Inc A CORP OF DE
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Filing: 1985-08-26
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Granted: 1986-06-24
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Expires: 2005-08-26
Abstract
Abstract A process for manufacturing electrochromic recording materials, useful for recording signals and images, is carried out by coating a suitable substrate with a homogeneous fluid mixture of a hydrosoluble salt of a metal cathodically depositable from an aqueous solution of its ions and an initially hydrosoluble film-forming polymer resin, in water. The recording mediums of the invention are advantageous for generating images whose background and marks remain unaffected by light, heat and humidity.
Inventors
- 👤 Bernard Warszawski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:43
CPC Classifications
B; B41; B41J; B41J3/00; B41J3/407; B41J3/4076; G; G02; G02F; G02F1/00; G02F1/01; G02F1/15; G02F1/1506; G02F1/1508
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
58 words
A process of manufacture of electrochromic material which comprises; coating onto a substrate or base material or impregnating it and then drying, a fluid, homogeneous mixture of (a) water; (b) a hydrosoluble salt or hydrosoluble mixture of salts of a metal cathodically depositable from an aqueous solution of its ions; and (c) an initially hydrosoluble film-forming polymer resin.
Claim 2
Dependent Claim
58 words
A process of manufacture of electrochromic material which comprises; coating onto a substrate or base material or impregnating it and then drying, a fluid, homogeneous mixture of (a) water; (b) a hydrosoluble salt or hydrosoluble mixture of salts of a metal cathodically depositable from an aqueous solution of its ions; and (c) an initially hydrosoluble film-forming polymer resin.
Claim 3
Dependent Claim
16 words
A process of manufacture according to claim 1, wherein the fluid mixture contains a volatile acid.
Claim 4
Dependent Claim
13 words
The process of claim 1, wherein the mixture also contains a particulate solid.
Claim 5
Dependent Claim
14 words
The process of claim 1, wherein the mixture also contains a resin cross-linking agent.
Claim 6
Dependent Claim
13 words
The process of claim 1, wherein the mixture also contains a complexing agent.
Claim 7
Dependent Claim
12 words
The process of claim 1, wherein the mixture also contains ammonium ions.
Claim 8
Dependent Claim
16 words
The process of claim 1, wherein the mixture also contains agents for improving the coating step.
Claim 9
Dependent Claim
21 words
A process of manufacture according to any one of the claims 1 and 2, wherein the fluid mixture contains wetting agents.
References Cited (Backward Citations)
US4233339A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-06-23 | 1989-12-23 | 1990-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-06-23 | 1993-12-23 | 1994-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-06-23 | 1997-12-23 | 1998-06-24 | $7700.00 | Window Closed / Lapsed |