US4088801A
Expired / Lapsed
US
⏱️ 0.0 years remaining
U.V. Radiation curable electrically conductive ink and circuit boards made therewith
Assignee: General Electric Co
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Filing: 1976-04-29
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Granted: 1978-05-09
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Expires: 1996-04-29
Abstract
Abstract A method is provided for making circuit boards having improved stability and articles made therefrom. In addition, UV-curable ink compositions are also provided convertible to conductive strips when printed onto nonconducting substrates and cured thereon. The conductive strips have improved resistance to salt contamination.
Inventors
- 👤 Donald A. Bolon
- 👤 Gary M. Lucas
- 👤 Siegfried H. Schroeter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:55
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/52; C08; C08G; C08G63/00; C08G63/02; C08G63/12; C08G63/52; C09D11/02; C09D11/10; C09D11/101; H; H05; H05K; H05K1/00; H05K1/02; H05K1/09; H05K1/092; H05K1/095; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/294; Y10T428/2956; Y10T428/2982; Y10T428/2991; Y10T428/2993; Y10T428/2996
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
137 words
A method for making a circuit board which comprises, (1) printing a UV radiation curable ink onto a nonconductive substrate to a desired circuit pattern, and (2) effecting the radiation cure of the radiation curable ink at ambient temperatures, where said radiation curable ink comprises by volume, (A) from about 10% to 60% of an organic resin binder having a viscosity of from about 50-10,000 centipoises at 25° C and 0.01% to 10% of a salt of silver or mercury free of halide ions having a water solubility of at least 1 × 10 -5 g/l at 25° C and (B) from about 90% to 40% of a particulated electrically conductive metal containing material having from about 0 to about 15% by weight of metal flake based on the weight of particulated electrically conductive metal containing material.
Claim 2
Independent Claim
137 words
A method for making a circuit board which comprises, (1) printing a UV radiation curable ink onto a nonconductive substrate to a desired circuit pattern, and (2) effecting the radiation cure of the radiation curable ink at ambient temperatures, where said radiation curable ink comprises by volume, (A) from about 10% to 60% of an organic resin binder having a viscosity of from about 50-10,000 centipoises at 25° C and 0.01% to 10% of a salt of silver or mercury free of halide ions having a water solubility of at least 1 × 10 -5 g/l at 25° C and (B) from about 90% to 40% of a particulated electrically conductive metal containing material having from about 0 to about 15% by weight of metal flake based on the weight of particulated electrically conductive metal containing material.
Claim 3
Dependent Claim
9 words
A circuit board made in accordance with claim 1.
Claim 4
Dependent Claim
26 words
A method in accordance with claim 1, where the curable ink utilizes silver coated glass spheres or spheriods as the particulated electrically conductive metal containing material.
Claim 5
Dependent Claim
13 words
A method in accordance with claim 1, where the nonconductive substrate is polystyrene.
Claim 6
Dependent Claim
22 words
A method in accordance with claim 1, where a mixture of polyester resin and styrene are used as the organic resin binder.
Claim 7
Dependent Claim
21 words
A method in accordance with claim 1, where the radiation curable ink contains silver acetate as a water soluble silver salt.
Claim 8
Dependent Claim
21 words
A method in accordance with claim 1, where the radiation curable ink contains silver nitrate as the water soluble silver salt.
Claim 9
Dependent Claim
98 words
A UV radiation curable ink comprising by volume, (A) from about 10% to 60% of an organic resin binder having a viscosity of from about 50-10,000 centipoises at 25° C and .01% by weight of a salt of silver or mercury free of halide ions having a water solubility of at least 1 × 10 -5 g/l at 25° C and (B) from about 90% to 40% of a particulated electrically conductive metal containing material having from about 0 to about 15% by weight of metal flake based on the weight of particulated electrically conductive metal containing material.
Claim 10
Dependent Claim
98 words
A UV radiation curable ink comprising by volume, (A) from about 10% to 60% of an organic resin binder having a viscosity of from about 50-10,000 centipoises at 25° C and .01% by weight of a salt of silver or mercury free of halide ions having a water solubility of at least 1 × 10 -5 g/l at 25° C and (B) from about 90% to 40% of a particulated electrically conductive metal containing material having from about 0 to about 15% by weight of metal flake based on the weight of particulated electrically conductive metal containing material.
Claim 11
Dependent Claim
20 words
A method in accordance with claim 8, where the radiation curable ink contains silver acetate as a water soluble salt.
Claim 12
Dependent Claim
21 words
A method in accordance with claim 8, where the radiation curable ink contains silver nitrate as the water soluble silver salt.
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) | 1981-05-08 | 1981-11-07 | 1982-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-08 | 1985-11-07 | 1986-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-08 | 1989-11-07 | 1990-05-09 | $7700.00 | Window Closed / Lapsed |