EP0099722A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Cable with adhesively bonded sheath
Assignee: Commscope Inc of North Carolina
•
Filing: 1983-07-13
•
Granted: —
•
Expires: 2003-07-13
Abstract
Abstract An electrical cable comprising a core having at least one inner conductor surrounded by a dielectric material, a metallic sheath surrounding said core, and an adhesive bonding said metallic sheath to said core, said adhesive comprising a water dispersible copolymer of ethylene and an ethylenically unsaturated carboxylic acid forming a thin film between said metallic sheath and said core.
Inventors
- 👤 Wayne Laval Gindrup
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 20:32
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/44; H01B3/441; C; C09; C09J; C09J123/00; C09J123/02; C09J123/04; C09J123/08; H01B11/00; H01B11/18; H01B11/1834; H01B11/1839; H01B13/00; H01B13/22; H01B13/225; H01B13/26; H01B13/2613; H01B13/2633
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
62 words
An electrical cable comprising a core having at least one inner conductor surrounded by a dielectric material, a metallic sheath surrounding said core, and an adhesive bonding said metallic sheath to said core, characterized in that said adhesive comprises a water dispersible copolymer of ethylene and an ethylenically unsaturated carboxylic acid forming a thin film between said metallic sheath and said core.
Claim 2
Dependent Claim
62 words
An electrical cable comprising a core having at least one inner conductor surrounded by a dielectric material, a metallic sheath surrounding said core, and an adhesive bonding said metallic sheath to said core, characterized in that said adhesive comprises a water dispersible copolymer of ethylene and an ethylenically unsaturated carboxylic acid forming a thin film between said metallic sheath and said core.
Claim 3
Dependent Claim
21 words
A cable according to Claim 1 wherein said thin film of adhesive has a thickness no greater than about .0254 mm.
Claim 4
Dependent Claim
25 words
A cable according to Claim 1 wherein said dielectric material comprises a foam plastic material and said metallic sheath comprises a longitudinally welded metal tube.
Claim 5
Dependent Claim
25 words
A cable according to Claim 1 wherein said dielectric material comprises a foam plastic material and said metallic sheath comprises an extruded seamless metal tube.
Claim 6
Dependent Claim
27 words
A cable according to Claim 1 wherein said dielectric material comprises a foam plastic material and said metallic sheath comprises a metal strip wrapped about said core.
Claim 7
Dependent Claim
51 words
A cable according to Claim 1 wherein said copolymer is rendered water dispersible by partial neutralization of the ethylenically unsaturated carboxylic acid, and wherein a portion of said carboxylic acid is unreacted to provide carboxyl groups present in the adhesive for effecting bonding between said metallic outer conductor and said core.
Claim 8
Dependent Claim
22 words
A cable according to Claim 6 wherein the ethylenically unsaturated carboxylic acid is partially neutralized by reaction with a monovalent metal hydroxide.
Claim 9
Dependent Claim
22 words
A cable according to Claim 6 wherein the copolymer contains at least 2 percent by weight of unreacted ethylenically unsaturated carboxylic acid.
Claim 10
Dependent Claim
31 words
A cable according to Claim 1 wherein the adhesive comprises an ethylene acrylic acid copolymer containing at least 15 percent by weight acrylic acid partially neutralized with a monovalent metal hydroxide.
Claim 11
Dependent Claim
106 words
An electrical cable comprising a core having at least one inner conductor and a foam dielectric surrounding said at least one inner conductor, a metallic sheath surrounding said core, and an adhesive bonding said metallic sheath to said core, characterized in that said adhesive comprises a copolymer of ethylene and acrylic acid containing at least 15 percent by weight acrylic acid, with a portion of the acrylic acid being neutralized to render the copolymer water dispersible, and with at least 2 percent of the acrylic acid being unreacted to provide carboxyl groups present in the adhesive for effecting bonding between said metallic sheath and said core.
Claim 12
Dependent Claim
106 words
An electrical cable comprising a core having at least one inner conductor and a foam dielectric surrounding said at least one inner conductor, a metallic sheath surrounding said core, and an adhesive bonding said metallic sheath to said core, characterized in that said adhesive comprises a copolymer of ethylene and acrylic acid containing at least 15 percent by weight acrylic acid, with a portion of the acrylic acid being neutralized to render the copolymer water dispersible, and with at least 2 percent of the acrylic acid being unreacted to provide carboxyl groups present in the adhesive for effecting bonding between said metallic sheath and said core.
Claim 13
Independent Claim
108 words
A method of producing an electrical cable having a core with at least one inner conductor surrounded by a dielectric material and a metallic sheath surrounding the core and adhesively bonded thereto, characterized by applying to at least one of the core or the metallic sheath an adhesive composition comprising an aqueous dispersion of a copolymer of ethylene and an ethylenically unsaturated carboxylic acid to form a thin adhesive coating thereon, assembling the core and the metallic sheath in contact with one another with the thin adhesive coating at the interface therebetween, and heating the assembly to activate the adhesive to bond the core and the metallic sheath.
Claim 14
Independent Claim
108 words
A method of producing an electrical cable having a core with at least one inner conductor surrounded by a dielectric material and a metallic sheath surrounding the core and adhesively bonded thereto, characterized by applying to at least one of the core or the metallic sheath an adhesive composition comprising an aqueous dispersion of a copolymer of ethylene and an ethylenically unsaturated carboxylic acid to form a thin adhesive coating thereon, assembling the core and the metallic sheath in contact with one another with the thin adhesive coating at the interface therebetween, and heating the assembly to activate the adhesive to bond the core and the metallic sheath.
Claim 15
Dependent Claim
54 words
A method according to Claim 11 wherein the step of assembling the core and the metallic sheath comprises forming a metal strip longitudinally around the core to produce a longitudinal seam and welding the longitudinal seam, and wherein said aqueous dispersion is applied to the core prior to forming of the metallic strip therearound.
Claim 16
Dependent Claim
46 words
A method according to Claim 11 wherein the step of assembling the core and the metallic sheath comprises drawing the core longitudinally into a seamless metal tube, and wherein said aqueous disperson is applied to the core prior to its being positioned within the metal tube.
Claim 17
Dependent Claim
42 words
A method according to Claim 11 wherein the ethylenically unsaturated carboxylic acid of said copolymer is partially neutralized and a portion thereof is unreacted to provide carboxyl groups present in the copolymer for effecting bonding between the metallic sheath and the dielectric.
Claim 18
Dependent Claim
22 words
A method according to Claim 14 wherein the copolymer contains at least 2 percent by weight of unreacted ethylenically unsaturated carboxylic acid.
Claim 19
Independent Claim
145 words
A method of producing an electrical cable having a core with at least one inner conductor surrounded by a foam dielectric, and a metallic sheath surrounding said core and adhesively bonded thereto, characterized by applying to at least one of the core or the metallic sheath an adhesive composition comprising an aqueous dispersion of an ethylene acrylic acid copolymer containing at least 15 percent by weight acrylic acid, with a portion of the acrylic acid being neutralized to render the copolymer water dispersible and with at least 2 percent of the acrylic acid being unreacted to provide carboxyl groups present in the adhesive for effecting bonding, assembling the foam dielectric and the metallic sheath in contact with one another with the adhesive at the interface therebetween, and heating the thus formed assembly to activate the adhesive to bond the foam dielectric and the metallic sheath.
Claim 20
Independent Claim
145 words
A method of producing an electrical cable having a core with at least one inner conductor surrounded by a foam dielectric, and a metallic sheath surrounding said core and adhesively bonded thereto, characterized by applying to at least one of the core or the metallic sheath an adhesive composition comprising an aqueous dispersion of an ethylene acrylic acid copolymer containing at least 15 percent by weight acrylic acid, with a portion of the acrylic acid being neutralized to render the copolymer water dispersible and with at least 2 percent of the acrylic acid being unreacted to provide carboxyl groups present in the adhesive for effecting bonding, assembling the foam dielectric and the metallic sheath in contact with one another with the adhesive at the interface therebetween, and heating the thus formed assembly to activate the adhesive to bond the foam dielectric and the metallic sheath.
Claim 21
Independent Claim
83 words
A method of producing an electrical cable comprising forming a core by advancing at least one conductor through an extruder while extruding a foam plastic dielectric material therearound, directing the thus formed core through an adhesive bath containing an aqueous dispersion of a copolymer of ethylene and an ethylenically unsaturated carboxylic acid to form a thin adhesive coating on the core, surrounding the core with a metallic sheath, and heating the adhesive coating to effect bonding of the core to the metallic sheath.
Claim 22
Independent Claim
83 words
A method of producing an electrical cable comprising forming a core by advancing at least one conductor through an extruder while extruding a foam plastic dielectric material therearound, directing the thus formed core through an adhesive bath containing an aqueous dispersion of a copolymer of ethylene and an ethylenically unsaturated carboxylic acid to form a thin adhesive coating on the core, surrounding the core with a metallic sheath, and heating the adhesive coating to effect bonding of the core to the metallic sheath.
Claim 23
Dependent Claim
28 words
An adhesive composition comprising a stable aqueous dispersion of a copolymer of ethylene and an ethylenically unsaturated carboxylic acid partially neutralized by reaction with a monovalent metal hydroxide.
Claim 24
Dependent Claim
28 words
An adhesive composition comprising a stable aqueous dispersion of a copolymer of ethylene and an ethylenically unsaturated carboxylic acid partially neutralized by reaction with a monovalent metal hydroxide.
Claim 25
Dependent Claim
23 words
An adhesive composition according to Claim 18 wherein said copolymer contains at least 2 percent by weight of unreacted ethylenically unsaturated carboxylic acid.
Claim 26
Dependent Claim
23 words
An adhesive composition according to Claim 19 wherein the copolymer contains at least 12 percent by weight of said ethylenically unsaturated carboxylic acid.
Claim 27
Dependent Claim
12 words
An adhesive composition according to Claim 18 additionally comprising an antifoam agent.
Claim 28
Dependent Claim
52 words
An adhesive composition comprising a stable aqueous dispersion of an ethylene acrylic acid copolymer containing at least 15 percent by weight acrylic acid partially neutralized with a monovalent metal hydroxide, with at least 2 percent of the acrylic acid being unreacted to provide carboxyl groups present in the adhesive for effecting bonding.
Claim 29
Dependent Claim
52 words
An adhesive composition comprising a stable aqueous dispersion of an ethylene acrylic acid copolymer containing at least 15 percent by weight acrylic acid partially neutralized with a monovalent metal hydroxide, with at least 2 percent of the acrylic acid being unreacted to provide carboxyl groups present in the adhesive for effecting bonding.
References Cited (Backward Citations)
US3315025A
Cited
US3459877A
Cited
US3795540A
Cited
US3662090A
Cited
US3681515A
Cited
US4010315A
Cited
US4104481A
Cited
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.