US4400100A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Four layered ribbon for electrothermal printing
Assignee: IBM Information Products Corp
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Filing: 1981-03-02
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Granted: 1983-08-23
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Expires: 2001-03-02
Abstract
Abstract Four layer resistive ribbon transfer tapes for use in electrothermic printing devices are fabricated. The tapes are comprised of a substrate having a heat transferable ink on one of its surfaces, and on its opposing surface there is disposed a metal layer. Bonded to the metal layer is a resistive layer. This resistive layer is caused to be bonded to the metal layer by a layer of an alkoxysilane compound therebetween.
Inventors
- 👤 Ari Aviram
- 👤 Susan O. Ellmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:46
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/26; B41M5/382; B41M5/3825; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31507; Y10T428/31652; Y10T428/31663
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
65 words
An improved resistive ribbon for electrothermal printing comprising, a substrate having at one of its surfaces an ink which when heated is transferable onto a printing surface; a metal layer on the opposing surface of said substrate, a resistive composition layer atop said metal layer; and a bonding layer between said metal layer and said resistive layer to bond said metal and resistive layers together.
Claim 2
Dependent Claim
65 words
An improved resistive ribbon for electrothermal printing comprising, a substrate having at one of its surfaces an ink which when heated is transferable onto a printing surface; a metal layer on the opposing surface of said substrate, a resistive composition layer atop said metal layer; and a bonding layer between said metal layer and said resistive layer to bond said metal and resistive layers together.
Claim 3
Dependent Claim
69 words
An improved resistive ribbon according to claim 1 wherein said bonding layer is comprised of an adhesion promoter selected from an amino-amine containing alkoxysilane having the following formulae: ##STR2## where R is selected from methyl and ethyl groups Y is 1 to 18 and X is 1 to 18, and (R--O).sub.3 --Si--(CH.sub.2).sub.n --NH.sub.2 where R is an alkane group having from 1-5 C atoms and n is from 1-18.
Claim 4
Dependent Claim
24 words
An improved resistive ribbon according to claim 2 wherein said resistive layer is comprised of graphite filled polycarbonate and said conducting film is Al.
Claim 5
Dependent Claim
44 words
An improved resistive ribbon according to claim 2 wherein said adhesion promoter is selected from 3-(2-aminoethylamine) propyltrimethoxysilane, 3-(2-aminoethylamine) propyltrimethoxysilane and 3-(2-aminoethylamine) propyltriethoxysilane, 3-(2-aminoethylamine) propyltrimethoxysilane, 4-(2-aminoethylamine) butyltrimethoxysilane, 4-(2-aminoethylamine) butyltriethoxysilane, 12-(2-aminoethylamine) dodecyltriethoxylsilane, 12-(3-aminopropylamine) dodecyltriethoxysilane, 18-(4-aminobutylamine) octadecyltriethoxysilane, 3-triethoxysilane propylamine, 3-trimethoxysilane propylamine, 6-trimethoxysilane hexylamine, 12-triethoxysilane dodecylamine, 18-triethoxysilane octadecylamine.
Claim 6
Independent Claim
176 words
A method for fabricating four layered resistive ribbons for electrothermal printing including the steps of: (a) providing a substrate having a conducting film disposed on one of its surfaces; (b) applying a thin layer of an alkoxysilane adhesion promoter to said conducting film having the following structures: ##STR3## where R is CH 3 or C 2 H 5 , Y=1-18 and X is 1-18, and (R--O).sub.3 --Si--(CH.sub.2).sub.n --NH.sub.2 where R is an alkane group having from 1-5 C atoms and n is from 1-18; (c) heating said adhesion promoter coated substrate at a temperature and for a time sufficient to cause said adhesion promoter to adhere to said conducting film, (d) cooling the substrate and coating a resistive composition layer onto said adhesion promoter layer; (e) again heating said so coated substrate for a time and at a temperature sufficient to cause said resistive composition layer to adhere to said adhesion promoter layer; and thereafter (f) coating on the other surface of said substrate an ink which is transferable onto a printing surface when electrothermally heated.
Claim 7
Independent Claim
176 words
A method for fabricating four layered resistive ribbons for electrothermal printing including the steps of: (a) providing a substrate having a conducting film disposed on one of its surfaces; (b) applying a thin layer of an alkoxysilane adhesion promoter to said conducting film having the following structures: ##STR3## where R is CH 3 or C 2 H 5 , Y=1-18 and X is 1-18, and (R--O).sub.3 --Si--(CH.sub.2).sub.n --NH.sub.2 where R is an alkane group having from 1-5 C atoms and n is from 1-18; (c) heating said adhesion promoter coated substrate at a temperature and for a time sufficient to cause said adhesion promoter to adhere to said conducting film, (d) cooling the substrate and coating a resistive composition layer onto said adhesion promoter layer; (e) again heating said so coated substrate for a time and at a temperature sufficient to cause said resistive composition layer to adhere to said adhesion promoter layer; and thereafter (f) coating on the other surface of said substrate an ink which is transferable onto a printing surface when electrothermally heated.
Claim 8
Dependent Claim
54 words
A method according to claim 5 wherein said conducting film is Al, said resistive composition is graphite filled polycarbonate and said adhesion promoter layer is selected from 3-(aminomethylamine) propylmethoxysilane, 3-(2-aminoethylamine) propyltrimethoxysilane and 3-(2-aminoethylamine) propyltriethoxysilane, 4-(2-aminoethylamine) butyltrimethoxysilane, 4-(2-aminoethylamine) butyltriethoxysilane, 12-(2-aminoethylamine) dodecyltriethoxysilane, 12-(3-aminopropylamine) dodecyltriethoxysilane, 18-(4-aminobutylamine) octadecyltriethoxysilane, 3-triethoxysilane propylamine, 3-trimethoxysilane propylamine, 6-trimethoxysilane hexylamine, 12-triethoxysilane dodecylamine, 18-triethoxysilane octadecylamine.
Claim 9
Dependent Claim
31 words
A method according to claim 5 wherein said heating steps are at a temperature in the range of 25° C. to about 120° C. and for about 1 to 5 minutes.
Claim 10
Dependent Claim
25 words
A method according to claim 5 wherein said heating steps are at a temperature in the range of about 65° C. to about 100° C.
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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) | 1986-08-22 | 1987-02-21 | 1987-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-08-22 | 1991-02-21 | 1991-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-08-22 | 1995-02-21 | 1995-08-23 | $7700.00 | Window Closed / Lapsed |