Patent EP0090151A1 successfully refreshed from Google Patents.
EP0090151A1
Expired / Lapsed
EP
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Compositions convertible to reinforced conductive components and articles incorporating same
Assignee: Wyeth Holdings LLC
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Filing: 1983-02-08
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Granted: —
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Expires: 2003-02-08
Abstract
Abstract Electrically und/or thermally conductive reinforced compositions convertible to reinforced components are disclosed. The compositions comprise a polymeric material of little or no conductivity and high strength, metal plated composite fibers having a conductive semi-metallic core and a thin, firmly adhered layer of an electrodepositable metal coating on said core. The metal coated composite fibers will not lose their conductive coatings during normal processing and provide conductivity without reducing the physical properties of the polymeric material. The compositions of the invention are convertible to conductive components such as laminate prepregs, surface plys for laminates, conductive adhesives, conductive inks, and conductive elastomeric gaskets. The components can be incorporated in improved articles such as structural parts for transportation vehicles, printed circuit boards, lighting shields and molded articles.
Inventors
- 👤 Richard Simeon Iwaskow
- 👤 Stephen Mcdonald Crum
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-06 19:58
CPC Classifications
H; H01; H01B; H01B5/00; H01B5/14; B; B32; B32B; B32B5/00; B32B5/02; B32B5/10; D; D04; D04H; D04H1/00; D04H1/40; D04H1/42; D04H1/4209; D04H1/4234; D04H1/4382; D04H1/43825; D04H1/43828; H01B1/00; H01B1/20; H01B1/22; H01B1/24; H05; H05K; H05K1/00; H05K1/02; H05K1/09; H05K1/092; H05K1/095
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
90 words
A composition convertible to a reinforced conductive component, said composition comprising: (i) . a polymeric material with little or no conductivity; and (ii) composite fibers, the majority of which have an electrically conductive non-metallic or' semi-metallic core and at least one thin, uniform, firmly adherent, electrically conductive layer of at least one electrodepositable metal on said core, alone, or in combination with other fibers, the amount of component (ii) in said composition being at least effective to render a high performance component made from said composition electrically and/or thermally, conductive..
Claim 2
Dependent Claim
90 words
A composition convertible to a reinforced conductive component, said composition comprising: (i) . a polymeric material with little or no conductivity; and (ii) composite fibers, the majority of which have an electrically conductive non-metallic or' semi-metallic core and at least one thin, uniform, firmly adherent, electrically conductive layer of at least one electrodepositable metal on said core, alone, or in combination with other fibers, the amount of component (ii) in said composition being at least effective to render a high performance component made from said composition electrically and/or thermally, conductive..
Claim 3
Dependent Claim
59 words
A composition as recited in Claim 1 wherein said polymeric material is selected from the group consisting essentially of polyesters, polyethers, polycarbonates, epoxies, epoxy-novolacs, epoxy-polyurethanes, urea-type resins, phenolformaldehyde resins, thiourea resins, melamine resins, urea-aldehyde resins, alkyd resins, polysulfide resins, vinyl organic prepolymers, multifunctional vinyl ethers, cyclic ethers, cyclic esters, polycarbonate-co-esters, polycarbonate-co-silicones, polyetheresters, polyimides, polyamides, polyesterimides, polyamideimides, polyetherimides and polyvinylchlorides.
Claim 4
Dependent Claim
31 words
A composition as recited in Claim 1 wherein- the electrically conductive semi-metallic core of said composite fibers (ii) is selected from the group consisting essentially of carbon, boron and silicon carbide.
Claim 5
Dependent Claim
49 words
A composition as recited in Claim 1 wherein said electrically conductive metal layer is formed of an electrodepositable metal selected from the group consisting essentially of: nickel, silver, zinc, copper, lead, arsenic, cadmium, tin, cobalt, gold, indium,iridium, iron, palladium, platinum, tellurium, tungsten, and mixtures of any of the foregoing.
Claim 6
Dependent Claim
74 words
A composition as recited in Claim 1, wherein the bond strength of the electrodepositable metal layer to the core of said composite fibers (ii) is at least sufficient to provide that when the composite fiber is sharply bent, the coating on the tension side of the bend will break when its elastic limit is exceeded and on the compression side of the bend will remain bonded to the core and will not crack circumferentially.
Claim 7
Dependent Claim
33 words
An article of'manufacture comprising a composition as defined in Claim 1 wherein said polymeric material (i) is present with a woven, knitted, or nonwoven fabric, sheet or mat comprising said composite fibers (ii).
Claim 8
Dependent Claim
36 words
A shaped article of manufacture formed from a composition as defined in Claim 1 wherein the polymeric material (i) is reinforced with a woven, knitted or nonwoven fabric, sheet or mat comprising said composite fibers (ii).
Claim 9
Dependent Claim
21 words
A composition as defined in Claim 1 wherein the polymeric material (i) is reinforced with composite fibers (ii) in comminuted form.
Claim 10
Dependent Claim
23 words
A composite comprising a sheet-like base and on at least one surface threof a film comprising an article as defined by Claim 6.
Claim 11
Dependent Claim
12 words
A shaped article of manufacturing formed from the composite of Claim 9.
Claim 12
Dependent Claim
22 words
A composite comprising a plurality of sheets at least one of which is an article of manufacture as defined by Claim 6.
Claim 13
Dependent Claim
12 words
A shaped article of manufacture formed from the composite of Claim 11.
Claim 14
Dependent Claim
28 words
A composition as defined in Claim 8 wherein said composition is an adhesive composition, an ink composition, a paste or coating composition, or a caulking and sealing composition.
Claim 15
Dependent Claim
34 words
An adhesive composition as defined in Claim 13 wherein said polymeric material is a one-part or a two-part epoxy resin composition and said composite fibers comprise comminuted silver, nickel or gold coated graphite fibers.
Claim 16
Dependent Claim
15 words
A shaped article of manufacture formed from an adhesive composition as defined in Claim 14.
Claim 17
Dependent Claim
40 words
A composition as defined in Claim 1 wherein said polymeric material is a thermoset or a thermoplastic and said composite fibers comprise comminuted nickel, silver or gold coated graphite fibers, said composition being in the form of a molding compound.
Claim 18
Dependent Claim
14 words
A composition is defined in Claim 16 wherein said polymeric material is a polyester.
Claim 19
Dependent Claim
15 words
A shaped article of manufacture formed from a molding compound as defined in Claim 16.
Claim 20
Dependent Claim
22 words
An article of manufacture comprising sheets or shapes adapted to form gaskets, said articles comprising a composition as defined in Claim 1.
Claim 21
Dependent Claim
36 words
20 . A sheet-like structure comprising a substantially non-conductive polymeric material, and at best one conductive fiber in the plane of the sheet, the fiber defining a continuous electrical pathway ending in at least two terminals.
Claim 22
Dependent Claim
36 words
20 . A sheet-like structure comprising a substantially non-conductive polymeric material, and at best one conductive fiber in the plane of the sheet, the fiber defining a continuous electrical pathway ending in at least two terminals.
Claim 23
Dependent Claim
34 words
A method for determining structural integrity of high strength composites comprising shaping sheet-like structures as defined in Claim 20 into such composites and measuring electrical continuity between at least two of the terminal points.
References Cited (Backward Citations)
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