US4359484A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for reducing traces of abrasion or scratches on the surface of a record carrier
Assignee: International Business Machines Corp
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Filing: 1981-02-25
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Granted: 1982-11-16
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Expires: 2001-02-25
Abstract
Abstract The invention concerns a process for reducing, or completely eliminating, traces of abrasion or scratches on the surface of a record carrier covered with a thin metallic layer, preferably consisting of aluminum. The process is characterized in that the surface of the record carrier is covered with a 2 to 1000 nm thick layer of a metallic soap, preferably a saturated metallic soap, an unsaturated metallic soap or a mixture thereof.
Inventors
- 👤 Dietrich J. Bahr
- 👤 Marian Briska
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:53
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/24; B41M5/245
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
74 words
A process for reducing traces of abrasion during printing operations in an electrographic printer, on the surface of a record carrier covered with a thin evaporated aluminum layer, said process being characterized in that a thin layer of about 2 nm to 1000 nm of a metallic soap is applied to said layer in such a manner that the inherent unevenness of the surface of the record carrier is essentially leveled out and compensated.
Claim 2
Dependent Claim
74 words
A process for reducing traces of abrasion during printing operations in an electrographic printer, on the surface of a record carrier covered with a thin evaporated aluminum layer, said process being characterized in that a thin layer of about 2 nm to 1000 nm of a metallic soap is applied to said layer in such a manner that the inherent unevenness of the surface of the record carrier is essentially leveled out and compensated.
Claim 3
Dependent Claim
21 words
A process in accordance with claim 1, characterized in that saturated metallic soaps, unsaturated metallic soaps or mixtures thereof are used.
Claim 4
Dependent Claim
29 words
A process in accordance with claim 1, characterized in that a metallic soap selected from the group consisting of stearates, palmitates, oleates, linoleates, resinates, laurates and naphthenates is used.
Claim 5
Dependent Claim
15 words
A process in accordance with claim 1, characterized in that a hydrophilic soap is used.
Claim 6
Dependent Claim
15 words
A process in accordance with claim 1, characterized in that a hydrophobic soap is used.
Claim 7
Dependent Claim
15 words
A process in accordance with claim 1, characterized in that a water-soluble soap is used.
Claim 8
Dependent Claim
17 words
A process in accordance with claim 1 characterized in that a soap insoluble in water is used.
Claim 9
Dependent Claim
20 words
A process in accordance with claim 1, characterized in that a soap of tin, zinc, lithium or magnesium is used.
References Cited (Backward Citations)
US4193881A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-11-15 | 1986-05-17 | 1986-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-11-15 | 1990-05-17 | 1990-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-11-15 | 1994-05-17 | 1994-11-16 | $7700.00 | Window Closed / Lapsed |