Patent US3203665A successfully refreshed from Google Patents.
Patent US3989644A successfully refreshed from Google Patents.
US3989644A
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US
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Radiation curable inks
Assignee: General Electric Co
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Filing: 1974-09-27
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Granted: 1976-11-02
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Expires: 1994-09-27
Abstract
Abstract A radiation curable ink is provided which is convertible to a conductive coating when cured on the surface of a substrate. A non-ionic surfactant is used in the curable ink in combination with a particulated metal containing conductive filler and an organic resin binder. As a result of using the non-ionic surfactant there was achieved a reduction in the tendency of the curable ink to form two distinct layers based on the separation of the conductive filler from the organic resin binder.
Inventors
- 👤 Donald A. Bolon
- 👤 Gary M. Lucas
- 👤 Mary S. Jaffe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:39
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/52; C09D11/02; C09D11/10; C09D11/101; H; H01; H01B; H01B1/00; H01B1/20; H01B1/22; H05; H05K; H05K1/00; H05K1/02; H05K1/09; H05K1/092; H05K1/095
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
75 words
A radiation curable screen printable ink comprising by volume A. 10% to 60% of a radiation curable organic resin binder, and B. 90% to 40% of electrically conductive silver or copper containing particles having up to about 15% by weight of metal particles with an aspect ratio of diameter-to-thickness of a value greater than 20, where (A) is a radiation curable organic resin having from 0.5% to 10% by weight of a non-ionic organic surfactant.
Claim 2
Dependent Claim
75 words
A radiation curable screen printable ink comprising by volume A. 10% to 60% of a radiation curable organic resin binder, and B. 90% to 40% of electrically conductive silver or copper containing particles having up to about 15% by weight of metal particles with an aspect ratio of diameter-to-thickness of a value greater than 20, where (A) is a radiation curable organic resin having from 0.5% to 10% by weight of a non-ionic organic surfactant.
Claim 3
Dependent Claim
20 words
A radiation curable ink in accordance with claim 1, where the non-ionic organic surfactant is a polyalkylene oxide block copolymer.
Claim 4
Dependent Claim
21 words
A radiation curable ink in accordance with claim 1, where the non-ionic organic surfactant is an ethylene oxide--propylene oxide block copolymer.
Claim 5
Dependent Claim
27 words
A radiation curable screen printable ink in accordance with claim 1, where the silver or copper containing metal particles are in the form of silver-coated glass spheres.
Claim 6
Dependent Claim
27 words
A radiation curable screen printable ink in accordance with claim 1, where the silver or copper containing metal particles are in the form of silver-coated glass spheres.
Claim 7
Dependent Claim
27 words
A radiation curable screen printable ink in accordance with claim 1, where the silver or copper containing metal particles are in the form of chemically-reduced copper powder.
Claim 8
Dependent Claim
27 words
A radiation curable ink in accordance with claim 1, where the organic resin binder is in the form of a blend of a polyester prepolymer and styrene.
Claim 9
Dependent Claim
21 words
A radiation curable ink in accordance with claim 1, where the organic resin binder is in the form of a polyacrylate.
Claim 10
Dependent Claim
60 words
A radiation curable ink in accordance with claim 1, where the organic resin binder is in the form of a mixture of an epoxy resin and an aromatic onium salt selected from the class consisting of aromatic halonium salts, and aromatic onium salts of a Group VA element and an aromatic onium salt of a Group VIA element onium salt.
Claim 11
Dependent Claim
73 words
A radiation curable screen printable ink comprising by volume A. about 33% of a polyester reaction product of propylene glycol, fumaric acid and dicyclo pentadiene, B. from about 67% of silver-coated glass spheres having an average diameter of from about 10-50 microns, and C. from 0.5% to 5% by weight of (A) of a UV sensitizer, and D. from 1 to 5% based on the weight of (A) of a non-ionic organic surfactant.
Claim 12
Dependent Claim
73 words
A radiation curable screen printable ink comprising by volume A. about 33% of a polyester reaction product of propylene glycol, fumaric acid and dicyclo pentadiene, B. from about 67% of silver-coated glass spheres having an average diameter of from about 10-50 microns, and C. from 0.5% to 5% by weight of (A) of a UV sensitizer, and D. from 1 to 5% based on the weight of (A) of a non-ionic organic surfactant.
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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) | 1979-11-02 | 1980-05-03 | 1980-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-11-02 | 1984-05-03 | 1984-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-11-02 | 1988-05-03 | 1988-11-02 | $7700.00 | Window Closed / Lapsed |