US4419279A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conductive paste, electroconductive body and fabrication of same
Assignee: Potters Industries LLC
•
Filing: 1980-09-15
•
Granted: 1983-12-06
•
Expires: 2000-09-15
Abstract
Abstract A conductive paste and an electroconductive body fabricated from the paste, in which the paste comprises inorganic non-metallic particles coated with silver, silver particles and an organic binder, or inorganic non-metallic particles coated with silver, silver particles, particles of glassy material and an organic vehicle. An electroconductive body comprises silver particles, and inorganic non-metallic particles coated with silver, both embedded in a matrix of organic material or of glassy material. The silver particles and silver-coated inorganic non-metallic particles are in effective contacting relationship within the matrix. Also disclosed are a silver-coated glass bead, for incorporation in paste and an electroconductive body, and methods for fabricating an electroconductive body. The electroconductive bodies are useful, for example, as termination elements for capacitors, and as internal conductive elements in capacitors of the type used in thick-film technology applications.
Inventors
- 👤 John C. Abrams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:25
CPC Classifications
H; H01; H01G; H01G4/00; H01G4/002; H01G4/005; H01G4/008; H01G4/0085; H01B; H01B1/00; H01B1/14; H01B1/16; H01B1/20; H01B1/22; H10; H10W; H10W72/00; H10W72/30; H10W72/321; H10W72/325; H10W72/351; H10W72/352; H10W72/353; H10W72/354; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2982; Y10T428/2991; Y10T428/2993; Y10T428/2996
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
95 words
A conductive paste suitable for forming an electroconductive body, which comprises inorganic non-metallic particles coated with silver, said silver-coated inorganic non-metallic particles being of a size, on average, of from 1 to 100 microns in maximum dimension, and silver particles, in an polymeric organic binder formable into a matrix having embedded therein said silver-coated inorganic non-metallic particles and silver particles, the total amount of silver in said paste constituting at least 10% by weight of the paste and the amount of silver in said silver particles constituting at least 5% by weight of the paste.
Claim 2
Dependent Claim
95 words
A conductive paste suitable for forming an electroconductive body, which comprises inorganic non-metallic particles coated with silver, said silver-coated inorganic non-metallic particles being of a size, on average, of from 1 to 100 microns in maximum dimension, and silver particles, in an polymeric organic binder formable into a matrix having embedded therein said silver-coated inorganic non-metallic particles and silver particles, the total amount of silver in said paste constituting at least 10% by weight of the paste and the amount of silver in said silver particles constituting at least 5% by weight of the paste.
Claim 3
Dependent Claim
15 words
A conductive paste as defined in claim 1, wherein the organic binder comprises a resin.
Claim 4
Dependent Claim
17 words
A conductive paste as defined in claim 2, wherein the organic binder contains one or more solvents.
Claim 5
Dependent Claim
128 words
A conductive paste suitable for application to a substrate to form an electroconductive body thereon, which comprises inorganic non-metallic particles coated with silver, said silver-coated inorganic non-metallic particles being of a size, on average, of from 1 to 100 microns in maximum dimension, and silver particles, in an polymeric organic binder formable into a matrix having embedded therein said silver-coated inorganic non-metallic particles and silver particles, the total amount of silver in said paste being sufficient to prevent appreciable impairment of conductivity or adhesion to the substrate of said electroconductive body upon contact of the body with solder and said amount constituting at least 10% by weight of the paste, and the amount of silver in said silver particles constituting at least 5% by weight of the paste.
Claim 6
Dependent Claim
128 words
A conductive paste suitable for application to a substrate to form an electroconductive body thereon, which comprises inorganic non-metallic particles coated with silver, said silver-coated inorganic non-metallic particles being of a size, on average, of from 1 to 100 microns in maximum dimension, and silver particles, in an polymeric organic binder formable into a matrix having embedded therein said silver-coated inorganic non-metallic particles and silver particles, the total amount of silver in said paste being sufficient to prevent appreciable impairment of conductivity or adhesion to the substrate of said electroconductive body upon contact of the body with solder and said amount constituting at least 10% by weight of the paste, and the amount of silver in said silver particles constituting at least 5% by weight of the paste.
Claim 7
Dependent Claim
89 words
A conductive paste suitable for forming an electroconductive body, which comprises glass beads coated with silver, said silver-coated beads being of a size, on average, of from 1 to 50 microns in diameter, and silver particles, in a polymeric organic binder formable into a matrix having embedded therein said silver-coated beads and silver particles, the total amount of silver in said paste constituting at least 10% by weight of the paste and the amount of silver in said silver particles constituting at least 5% by weight of the paste.
Claim 8
Dependent Claim
89 words
A conductive paste suitable for forming an electroconductive body, which comprises glass beads coated with silver, said silver-coated beads being of a size, on average, of from 1 to 50 microns in diameter, and silver particles, in a polymeric organic binder formable into a matrix having embedded therein said silver-coated beads and silver particles, the total amount of silver in said paste constituting at least 10% by weight of the paste and the amount of silver in said silver particles constituting at least 5% by weight of the paste.
Claim 9
Dependent Claim
20 words
A conductive paste as defined in claim 5, wherein said organic binder comprises an acrylic resin or an epoxy resin.
Claim 10
Dependent Claim
29 words
A conductive paste as defined in claim 5, wherein the silver coating of said silver-coated glass beads constitutes of from 4 to 16% by weight of the silver-coated beads.
Claim 11
Dependent Claim
112 words
A conductive paste suitable for forming an electroconductive body, which comprises glass beads coated with silver, said silver-coated glass beads being of a size, on average, of from 1 to 50 microns in diameter, and finely-sized silver flakes, in an polymeric organic resin binder formable into a matrix having embedded therein said silver-coated beads and silver flakes, the amount of silver in said silver flakes constituting at least 25% by weight of the paste, and the amount of silver on said silver-coated glass beads constituting from 4 to 16% by weight of the silver-coated beads, the total amount of silver in said paste being at least 10% by weight of the paste.
Claim 12
Dependent Claim
112 words
A conductive paste suitable for forming an electroconductive body, which comprises glass beads coated with silver, said silver-coated glass beads being of a size, on average, of from 1 to 50 microns in diameter, and finely-sized silver flakes, in an polymeric organic resin binder formable into a matrix having embedded therein said silver-coated beads and silver flakes, the amount of silver in said silver flakes constituting at least 25% by weight of the paste, and the amount of silver on said silver-coated glass beads constituting from 4 to 16% by weight of the silver-coated beads, the total amount of silver in said paste being at least 10% by weight of the paste.
Claim 13
Dependent Claim
104 words
An electroconductive body, which comprises silver particles, and inorganic non-metallic particles coated with silver, said silver-coated inorganic non-metallic particles being of a size, on average, of from 1 to 100 microns in maximum dimension, said silver particles and silver-coated inorganic non-metallic particles being embedded in a matrix of non-conductive organic material, said silver-coated inorganic non-metallic particles and silver particles being in effective contacting relationship within said matrix, and the total amount of silver in said electroconductive body constituting at least 10% by weight of the body and the amount of silver in said silver particles constituting at least 5% by weight of the body.
Claim 14
Dependent Claim
104 words
An electroconductive body, which comprises silver particles, and inorganic non-metallic particles coated with silver, said silver-coated inorganic non-metallic particles being of a size, on average, of from 1 to 100 microns in maximum dimension, said silver particles and silver-coated inorganic non-metallic particles being embedded in a matrix of non-conductive organic material, said silver-coated inorganic non-metallic particles and silver particles being in effective contacting relationship within said matrix, and the total amount of silver in said electroconductive body constituting at least 10% by weight of the body and the amount of silver in said silver particles constituting at least 5% by weight of the body.
Claim 15
Dependent Claim
132 words
An electroconductive body, which comprises silver particles, and inorganic non-metallic particles coated with silver, said silver-coated inorganic non-metallic particles being of a size, on average, of from 1 to 100 microns in maximum dimension, said silver particles and silver-coated inorganic non-metallic particles being embedded in a matrix of polymeric organic material, said silver particles and silver-coated inorganic non-metallic particles being in effective contacting relationship within said matrix, and the total amount of silver present in the electroconductive body being sufficient to prevent appreciable impairment of the body's conductivity and of its adhesion to a substrate upon contact of the body with solder and said amount constituting at least 10% by weight of the body, and the amount of silver in said silver particles constituting at least 5% by weight of the body.
Claim 16
Dependent Claim
132 words
An electroconductive body, which comprises silver particles, and inorganic non-metallic particles coated with silver, said silver-coated inorganic non-metallic particles being of a size, on average, of from 1 to 100 microns in maximum dimension, said silver particles and silver-coated inorganic non-metallic particles being embedded in a matrix of polymeric organic material, said silver particles and silver-coated inorganic non-metallic particles being in effective contacting relationship within said matrix, and the total amount of silver present in the electroconductive body being sufficient to prevent appreciable impairment of the body's conductivity and of its adhesion to a substrate upon contact of the body with solder and said amount constituting at least 10% by weight of the body, and the amount of silver in said silver particles constituting at least 5% by weight of the body.
Claim 17
Dependent Claim
91 words
An electroconductive body, which comprises glass beads coated with silver, said silver-coated glass beads being of a size, on average, of from 1 to 50 microns in diameter, and silver particles, both embedded in a matrix of polymeric organic material, said silver-coated glass beads and silver particles being in effective contacting relationship within said matrix, the total amount of silver in said electroconductive body constituting at least 10% by weight of the body and the amount of silver in said silver particles constituting at least 5% by weight of the body.
Claim 18
Dependent Claim
91 words
An electroconductive body, which comprises glass beads coated with silver, said silver-coated glass beads being of a size, on average, of from 1 to 50 microns in diameter, and silver particles, both embedded in a matrix of polymeric organic material, said silver-coated glass beads and silver particles being in effective contacting relationship within said matrix, the total amount of silver in said electroconductive body constituting at least 10% by weight of the body and the amount of silver in said silver particles constituting at least 5% by weight of the body.
Claim 19
Dependent Claim
14 words
An electroconductive body as defined in claim 11, wherein the matrix comprises a resin.
Claim 20
Dependent Claim
15 words
An electroconductive body as defined in claim 11, wherein the silver particles are silver flakes.
Claim 21
Dependent Claim
20 words
An electroconductive body as defined in claim 11, wherein the organic material is an acrylic resin or an epoxy resin.
Claim 22
Dependent Claim
29 words
An electroconductive body as defined in claim 11, wherein the silver coating of said silver-coated glass beads constitutes of from 4 to 16% by weight of the silver-coated beads.
Claim 23
Dependent Claim
73 words
An electroconductive body, which comprises glass beads coated with silver, said silver-coated glass beads being of a size, on average, of from 1 to 50 microns in diameter, and silver particles, both embedded in a matrix of polymeric organic resin material, said silver-coated glass beads and silver particles being in effective contacting relationship within said matrix, the amount of silver in said silver particles constituting at least 25% by weight of the body.
Claim 24
Dependent Claim
73 words
An electroconductive body, which comprises glass beads coated with silver, said silver-coated glass beads being of a size, on average, of from 1 to 50 microns in diameter, and silver particles, both embedded in a matrix of polymeric organic resin material, said silver-coated glass beads and silver particles being in effective contacting relationship within said matrix, the amount of silver in said silver particles constituting at least 25% by weight of the body.
References Cited (Backward Citations)
US2280135A
Cited
US2313379A
Cited
US2506728A
Cited
US2771380A
Cited
US3030237A
Cited
US3083169A
Cited
US3119717A
Cited
US3099578A
Cited
US3202488A
Cited
US3407081A
Cited
US3859128A
Cited
US3583930A
Cited
US3619287A
Cited
US3592781A
Cited
US3635824A
Cited
US3846345A
Cited
US3718608A
Cited
US3741780A
Cited
US3891450A
Cited
US3900634A
Cited
US3992212A
Cited
US4011087A
Cited
US3932311A
Cited
US3968056A
Cited
US3957694A
Cited
US4001146A
Cited
US3988651A
Cited
US4075681A
Cited
US4088801A
Cited
US4090009A
Cited
US4289534A
Cited
US4319920A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-12-05 | 1987-06-06 | 1987-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-12-05 | 1991-06-06 | 1991-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-12-05 | 1995-06-06 | 1995-12-06 | $7700.00 | Window Closed / Lapsed |