US4533596A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermal magnetic transfer ribbon
Assignee: NCR Voyix Corp
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Filing: 1983-06-28
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Granted: 1985-08-06
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Expires: 2003-06-28
Abstract
Abstract A thermal magnetic transfer ribbon includes a substrate and a coating containing resin, oil and wax in a binder mix which is dispersed with a magnetic pigment in a solvent solution.
Inventors
- 👤 Thomas P. Besselman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:10
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/26; B41M5/382; B41M5/38285; B41J; B41J31/00; Y; Y10; Y10S; Y10S428/00; Y10S428/90; Y10S428/913; Y10S428/914
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
79 words
A thermal magnetic ribbon for use in non-impact printing comprising a substrate and a transfer layer which is a mixture containing about 3% to 10% hydocarbon resin as a binder material, about 1.5% to 5% hydrocarbon oil, about 15% to 50% wax, about 12% to 50% magnetic pigment in a ratio of about 4:1 with the hydrocarbon resin, about 1% wetting agent, all by dry weight, and about 30% to 60% solvent by wet weight for solubilizing the mixture.
Claim 2
Dependent Claim
79 words
A thermal magnetic ribbon for use in non-impact printing comprising a substrate and a transfer layer which is a mixture containing about 3% to 10% hydocarbon resin as a binder material, about 1.5% to 5% hydrocarbon oil, about 15% to 50% wax, about 12% to 50% magnetic pigment in a ratio of about 4:1 with the hydrocarbon resin, about 1% wetting agent, all by dry weight, and about 30% to 60% solvent by wet weight for solubilizing the mixture.
Claim 3
Dependent Claim
22 words
The ribbon of claim 1 wherein the transfer layer consists of a coating weight about 7.7 grams/square meter to 13.5 grams/square meter.
Claim 4
Dependent Claim
16 words
The ribbon of claim 2 wherein the transfer layer is about 5 to 15 microns thick.
Claim 5
Dependent Claim
17 words
The ribbon of claim 1 wherein the transfer layer mixture contains about 2% additives by dry weight.
Claim 6
Dependent Claim
27 words
The ribbon of claim 1 wherein the transfer layer mixture contains about 4% ester wax, about 23% vegetable wax, and about 10% petroleum wax by dry weight.
Claim 7
Dependent Claim
27 words
The ribbon of claim 1 wherein the transfer layer mixture is a gel-like coating on the substrate and is subjected to an elevated temperature for setting thereof.
Claim 8
Dependent Claim
21 words
The thermal magnetic ribbon of claim 1 wherein the transfer layer mixture contains about equal amounts of wax and magnetic pigment.
Claim 9
Dependent Claim
22 words
The thermal magnetic ribbon of claim 1 wherein the transfer layer mixture contains hydrocarbon resin and a lesser amount of hydrocarbon oil.
Claim 10
Dependent Claim
52 words
The thermal magnetic ribbon of claim 1 wherein the transfer layer mixture contains about 10% hydrocarbon resin, about 37% petroleum, vegetable, and ester wax, about 5% hydrocarbon oil, about 3% plasticizer, about 36% magnetic pigment, about 4% inorganic filler, about 1% antioxidant, and about 1.5% each of wetting agent and flow enhancer.
Claim 11
Dependent Claim
17 words
The thermal magnetic ribbon of claim 9 wherein the transfer layer mixture includes about 1% polyvinyl pyrrolidone.
Claim 12
Dependent Claim
45 words
The thermal magnetic ribbon of claim 1 wherein the transfer layer mixture contains about 10% resin, about 31% acid, ester, and vegetable wax, about 7% hydrocarbon oil, about 39% magnetic pigment, about 4% inorganic filler, and about 1.5% each of wetting agent and flow enhancer.
Claim 13
Dependent Claim
17 words
The thermal magnetic ribbon of claim 11 wherein the transfer layer mixture includes about 1% polyvinyl pyrrolidone.
Claim 14
Dependent Claim
47 words
The thermal magnetic ribbon of claim 1 wherein the transfer layer mixture contains about 8% resin, about 43% acid, vegetable, amide, and petroleum wax, about 4% hydrocarbon oil, about 38% magnetic pigment, about 4% inorganic filler, and about 1% each of antioxidant, wetting agent and flow enhancer.
Claim 15
Dependent Claim
21 words
The thermal magnetic ribbon of claim 1 wherein each of the substrate and the transfer layer is about 10 microns thick.
Claim 16
Dependent Claim
17 words
The thermal magnetic ribbon of claim 1 wherein the binder material comprises hydrocarbon resin and polyethylene resin.
Claim 17
Dependent Claim
17 words
The thermal magnetic ribbon of claim 1 wherein the binder material comprises polyethylene resin and vinyl resin.
References Cited (Backward Citations)
US3284360A
Cited
US3484264A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-08-05 | 1989-02-04 | 1989-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-08-05 | 1993-02-04 | 1993-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-08-05 | 1997-02-04 | 1997-08-06 | $7700.00 | Window Closed / Lapsed |