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US4054714A Expired / Lapsed US ⏱️ 0.0 years remaining

Electrically conductive adhesive composition

Assignee: EIDP Inc
•
Filing: 1976-06-07
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Granted: 1977-10-18
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Expires: 1996-06-07
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Abstract

Abstract Electrically conductive adhesive composition consisting essentially of polymeric binder, for example, "bouncing putty," conductive particles having at least their surfaces constituted by a noble metal and a normally liquid polyhydric alcohol, for example, glycerol.

Inventors

  • 👤 Sebastian Vito Rocco Mastrangelo

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 05:56
CPC Classifications
C; C09; C09J; C09J4/00; C09J4/06; C08; C08F; C08F291/00; H; H05; H05K; H05K1/00; H05K1/02; H05K1/09; H05K1/092; H05K1/095; H05K3/00; H05K3/30; H05K3/32; H05K3/321; Y; Y10; Y10T; Y10T428/00; Y10T428/25; Y10T428/256; Y10T428/29; Y10T428/2982; Y10T428/2991

Claims Analysis

Total Claims: 16
Claim 1
Independent Claim 28 words
Nonrigid electrically conductive adhesive composition consisting essentially of polymeric binder, conductive particles having at least their surfaces constituted by a noble metal and a normally liquid polyhydric alcohol.
Claim 2
Dependent Claim 28 words
Nonrigid electrically conductive adhesive composition consisting essentially of polymeric binder, conductive particles having at least their surfaces constituted by a noble metal and a normally liquid polyhydric alcohol.
Claim 3
Dependent Claim 12 words
Composition of claim 1 wherein the conductive particles are noble metal throughout.
Claim 4
Dependent Claim 10 words
Composition of claim 2 wherein the noble metal is silver.
Claim 5
Dependent Claim 10 words
Composition of claim 1 wherein the polyhydric alcohol is glycerol.
Claim 6
Dependent Claim 28 words
Composition of claim 4 wherein the polyhydric alcohol employed in the formation of the composition is a coating on the particles employed in the formation of the composition.
Claim 7
Dependent Claim 24 words
Composition of claim 1 wherein the polyhydric alcohol is present in an amount which is 1 to 10% by weight of the conductive particles.
Claim 8
Dependent Claim 31 words
Composition of claim 5 wherein the particles are silver particles and the weight ratio of the glycerol-coated particles to the balance of the composition is within the range 1:1 to 5:1.
Claim 9
Dependent Claim 17 words
Composition of claim 3 wherein the silver particles have a mean diameter of 0.1 to 50 microns.
Claim 10
Dependent Claim 13 words
Composition of claim 1 wherein the polymeric binder is a polymer in monomer.
Claim 11
Dependent Claim 18 words
Composition of claim 9 wherein the polymer is a chlorosulfonated polyethylene and the monomer is an acrylic monomer.
Claim 12
Dependent Claim 20 words
Composition of claim 10 wherein the acrylic monomer is a mixture of methyl methacrylate, methacrylic acid and ethylene glycol dimethacrylate.
Claim 13
Dependent Claim 21 words
Composition of claim 11 wherein the acrylic monomer mixture contains a condensation product of butyraldehyde and aniline as a polymerization catalyst.
Claim 14
Dependent Claim 14 words
Composition of claim 1 wherein the polymeric binder is a "bouncing putty" silicone polymer.
Claim 15
Dependent Claim 15 words
Composition of claim 13 wherein the silicone polymer contains a tackifying agent and a plasticizer.
Claim 16
Dependent Claim 14 words
Article having at least two surfaces bonded together with the composition of claim 1.

References Cited (Backward Citations)

US2541851A Cited
US2808352A Cited
US3206419A Cited
US3140342A Cited
US3890407A Cited
US3832274A Cited
US3932311A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1980-10-17 1981-04-18 1981-10-18 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1984-10-17 1985-04-18 1985-10-18 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1988-10-17 1989-04-18 1989-10-18 $7700.00 Window Closed / Lapsed

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