Patent US3770478A successfully refreshed from Google Patents.
US3770478A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transfer medium with a pigmented coating
Assignee: NCR Voyix Corp
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Filing: 1971-08-31
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Granted: 1973-11-06
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Expires: 1991-08-31
Abstract
Abstract Pigmented coatings comprised of TiO2 pigment in a binder of aminotriazine resin and polyester or a copolymer are disclosed. The coatings can be placed on a transfer base such as polyethylene terephthalate and transferred to credit card basis. Organic solvent based coatings also can be silk-screened directly onto the credit cards. Up to 50 weight percent of the TiO2 pigment can be replaced with a pigment extender such as CaCO3. The resulting credit cards are resistant to scratching and other surface damage. By the use of a dual binder system, the pigmented coating is easily transferred in one step and permanently heat sealed in a second step.
Inventors
- 👤 J Bishop
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:57
CPC Classifications
G; G06; G06K; G06K19/00; G06K19/02; Y; Y10; Y10S; Y10S428/00; Y10S428/914; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31786; Y10T428/31797; Y10T428/31942
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
15 words
A transfer medium according to claim 1 wherein the flexible carrier substrate is polyethylene terephthalate.
Claim 2
Dependent Claim
12 words
A transfer medium according to claim 1 wherein the pigment is TiO2.
Claim 3
Dependent Claim
30 words
A transfer medium according to claim 1 wherein up to 50 weight percent of the pigment is replaced with a pigment extender of CaCO3, BaSO4, CaSO4 or a mixture thereof.
Claim 4
Dependent Claim
14 words
A transfer medium according to claim 1 wherein the aminotriazine resin is melamine-sulfonamide-formaldehyde terpolymer.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-11-05 | 1977-05-07 | 1977-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-05 | 1981-05-07 | 1981-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-05 | 1985-05-07 | 1985-11-06 | $7700.00 | Window Closed / Lapsed |