US4255303A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyethylene composition containing talc filler for electrical applications
Assignee: Union Carbide Corp
•
Filing: 1979-04-25
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Granted: 1981-03-10
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Expires: 1999-04-25
Abstract
Abstract A composition for electrical applications having good electrical resistance, tensile strength and elongation consisting essentially of: (a) ethylene polymer, and (b) at least 10 parts by weight of talc filler per 100 parts by weight of ethylene polymer, said talc filler coated with at least one metallic salt of a fatty acid having 8 to 20 carbon atoms.
Inventors
- 👤 Michael J. Keogh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:52
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/44; C; C08; C08K; C08K9/00; C08K9/04; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/294; Y10T428/31504; Y10T428/31678; Y10T428/31692
Claims Analysis
Total Claims: 54
Claim 1
Independent Claim
82 words
A composition useful for coating wires or cables, having good electrical resistance, tensile strength and elongation consisting essentially of: (a) ethylene polymer, and (b) at least 10 parts by weight per 100 parts by weight of ethylene polymer of talc filler coated with at least one metallic salt of a fatty acid having 8 to 20 carbon atoms, wherein said metallic salt contains a metal selected from the metals of Groups Ia, IIa, and IIb of the Mendeleev Periodic Table of Elements.
Claim 2
Dependent Claim
82 words
A composition useful for coating wires or cables, having good electrical resistance, tensile strength and elongation consisting essentially of: (a) ethylene polymer, and (b) at least 10 parts by weight per 100 parts by weight of ethylene polymer of talc filler coated with at least one metallic salt of a fatty acid having 8 to 20 carbon atoms, wherein said metallic salt contains a metal selected from the metals of Groups Ia, IIa, and IIb of the Mendeleev Periodic Table of Elements.
Claim 3
Dependent Claim
12 words
The composition of claim 1 wherein said ethylene polymer is ethylene copolymer.
Claim 4
Dependent Claim
13 words
The composition of claim 2 wherein said ethylene polymer is ethylene-vinyl acetate copolymer.
Claim 5
Dependent Claim
13 words
The composition of claim 2 wherein said ethylene polymer is ethylene-alkyl acrylate copolymer.
Claim 6
Dependent Claim
15 words
The composition of claim 4 wherein said ethylene-alkyl acrylate copolymer is ethylene ethyl acrylate copolymer.
Claim 7
Dependent Claim
27 words
The composition of claim 3 wherein said talc filler is coated by mixing the talc, metallic salt of fatty acid, and ethylene polymer together in a mixer.
Claim 8
Dependent Claim
27 words
The composition of claim 4 wherein said talc filler is coated by mixing the talc, metallic salt of fatty acid, and ethylene polymer together in a mixer.
Claim 9
Dependent Claim
19 words
The composition of claim 3 wherein said talc filler is precoated prior to mixing said talc with ethylene polymer.
Claim 10
Dependent Claim
19 words
The composition of claim 4 wherein said talc filler is precoated prior to mixing said talc with ethylene polymer.
Claim 11
Dependent Claim
11 words
The composition of claim 1 wherein the ethylene polymer is curable.
Claim 12
Dependent Claim
96 words
The composition useful for coating wires or cables, suitable for use as a semi-conductor having good tensile strength and elongation consisting essentially of: (a) ethylene polymer, (b) at least 10 parts by weight per 100 parts by weight of ethylene polymer of talc filler coated with at least one metallic salt of a fatty acid having 8 to 20 carbon atoms, wherein said metallic salt contains a metal selected from the metals of Groups Ia, IIa, and IIb of the Mendeleev Periodic Table of Elements, and (c) conductive carbon black having a high specific surface area.
Claim 13
Dependent Claim
96 words
The composition useful for coating wires or cables, suitable for use as a semi-conductor having good tensile strength and elongation consisting essentially of: (a) ethylene polymer, (b) at least 10 parts by weight per 100 parts by weight of ethylene polymer of talc filler coated with at least one metallic salt of a fatty acid having 8 to 20 carbon atoms, wherein said metallic salt contains a metal selected from the metals of Groups Ia, IIa, and IIb of the Mendeleev Periodic Table of Elements, and (c) conductive carbon black having a high specific surface area.
Claim 14
Dependent Claim
12 words
The composition of claim 11 wherein said ethylene polymer is ethylene copolymer.
Claim 15
Dependent Claim
13 words
The composition of claim 12 wherein said ethylene polymer is ethylene-vinyl acetate copolymer.
Claim 16
Dependent Claim
13 words
The composition of claim 12 wherein said ethylene polymer is ethylene-alkyl acrylate copolymer.
Claim 17
Dependent Claim
14 words
The composition of claim 14 wherein the ethylene-alkyl acrylate copolymer is ethylene-ethyl acrylate copolymer.
Claim 18
Dependent Claim
35 words
The compositions of claims 2, 3, 4, 5, 7, 8 or 11 wherein the metallic salt contains a metal selected from the metals of Groups IIa, and IIb of the Mendeleev Periodic Table of Elements.
Claim 19
Dependent Claim
12 words
The composition of claim 16 wherein the metallic salt is a stearate.
Claim 20
Dependent Claim
12 words
The composition of claim 17 wherein the metallic salt is calcium stearate.
Claim 21
Dependent Claim
12 words
The composition of claim 17 wherein the metallic salt is zinc stearate.
Claim 22
Dependent Claim
36 words
The composition of claims 2, 3, 4, 5, 8 or 11 wherein the metallic salt is present in an amount of from 0.05 to about 5.0 parts by weight per 100 parts by weight of talc.
Claim 23
Dependent Claim
30 words
The composition of claim 20 wherein the metallic salt is present in an amount of from 0.5 to about 2.0 parts by weight per 100 parts by weight of talc.
Claim 24
Dependent Claim
35 words
The composition of claims 2, 3, 4, 5, 8 or 11 wherein the talc is present in an amount of from 10 to 150 parts by weight per 100 parts by weight of ethylene polymer.
Claim 25
Dependent Claim
30 words
The composition of claim 22 wherein the talc is present in an amount of from 10 to about 25 Parts by weight per 100 parts by weight of ethylene polymer.
Claim 26
Dependent Claim
29 words
The composition of claim 22 wherein the talc is present in an amount of from about 25 to 45 parts by weight per 100 parts by weight ethylene polymer.
Claim 27
Dependent Claim
94 words
A masterbatch suitable for use with compatible ethylene polymers to form compositions useful for coating wires or cables having good electrical resistance, tensile strength and elongation, said masterbatch consisting essentially of: (a) ethylene polymer, (b) from 100 to 1000 parts by weight per 100 parts by weight of ethylene polymer of talc filler coated with at least one metallic salt of a fatty acid having 8 to 20 carbon atoms, wherein said metallic salt contains a metal selected from the metals of Groups Ia, IIa and IIb of the Mendeleev Periodic Table of Elements.
Claim 28
Dependent Claim
94 words
A masterbatch suitable for use with compatible ethylene polymers to form compositions useful for coating wires or cables having good electrical resistance, tensile strength and elongation, said masterbatch consisting essentially of: (a) ethylene polymer, (b) from 100 to 1000 parts by weight per 100 parts by weight of ethylene polymer of talc filler coated with at least one metallic salt of a fatty acid having 8 to 20 carbon atoms, wherein said metallic salt contains a metal selected from the metals of Groups Ia, IIa and IIb of the Mendeleev Periodic Table of Elements.
Claim 29
Dependent Claim
24 words
The masterbatch of claim 25 containing from 250 to 500 parts by weight of talc filler per 100 parts by weight of ethylene polymer.
Claim 30
Dependent Claim
15 words
The composition of claims 1, 11 or 25 wherein the ethylene polymer is ethylene homopolymer.
Claim 31
Dependent Claim
14 words
The composition of claim 27 wherein the ethylene homopolymer has a density of ≧0.94.
Claim 32
Dependent Claim
14 words
The composition of claim 27 wherein the ethylene homopolymer has a density of ≦0.94.
Claim 33
Dependent Claim
81 words
An electric wire or cable insulated with a curable composition having good electrical resistance, tensile strength and elongation, said composition consisting essentially of ethylene polymer and at least 10 parts by weight per 100 parts by weight of ethylene polymer of talc filler coated with at least one metallic salt of a fatty acid having 8 to 20 carbon atoms, wherein said metallic salt contains a metal selected from Groups Ia, IIa and IIb of the Medeleev Periodic Table of Elements.
Claim 34
Dependent Claim
81 words
An electric wire or cable insulated with a curable composition having good electrical resistance, tensile strength and elongation, said composition consisting essentially of ethylene polymer and at least 10 parts by weight per 100 parts by weight of ethylene polymer of talc filler coated with at least one metallic salt of a fatty acid having 8 to 20 carbon atoms, wherein said metallic salt contains a metal selected from Groups Ia, IIa and IIb of the Medeleev Periodic Table of Elements.
Claim 35
Dependent Claim
88 words
An electric wire or cable having a conductive shield having good tensile strength and elongation said conductive shield consisting essentially of ethylene polymer, conductive carbon black having a high specific surface area and at least 10 parts by weight per 100 parts by weight of ethylene polymer of talc filler coated with at least one metallic salt of a fatty acid having 8 to 20 carbon atoms, wherein said metallic salt contains a metal selected from Groups Ia, IIa and IIb of the Medeleev Periodic Table of Elements.
Claim 36
Dependent Claim
88 words
An electric wire or cable having a conductive shield having good tensile strength and elongation said conductive shield consisting essentially of ethylene polymer, conductive carbon black having a high specific surface area and at least 10 parts by weight per 100 parts by weight of ethylene polymer of talc filler coated with at least one metallic salt of a fatty acid having 8 to 20 carbon atoms, wherein said metallic salt contains a metal selected from Groups Ia, IIa and IIb of the Medeleev Periodic Table of Elements.
Claim 37
Dependent Claim
86 words
A composition, useful for coating wires or cables having good electrical resistance, tensile strength and elongation consisting essentially of: (a) ethylene polymer, (b) at least 10 parts by weight per 100 parts by weight of ethylene polymer of talc filler coated with at least one metallic salt of a fatty acid having 8 to 20 carbon atoms, wherein said metallic salt contains a metal selected from the metals of Groups Ia, IIa and IIb of the Mendeleev Periodic Table of Elements, and (c) non-conductive carbon black.
Claim 38
Dependent Claim
86 words
A composition, useful for coating wires or cables having good electrical resistance, tensile strength and elongation consisting essentially of: (a) ethylene polymer, (b) at least 10 parts by weight per 100 parts by weight of ethylene polymer of talc filler coated with at least one metallic salt of a fatty acid having 8 to 20 carbon atoms, wherein said metallic salt contains a metal selected from the metals of Groups Ia, IIa and IIb of the Mendeleev Periodic Table of Elements, and (c) non-conductive carbon black.
Claim 39
Dependent Claim
32 words
The composition of claim 32 wherein the non-conductive carbon black is present in an amount of from 1 to about 25 parts by weight per 100 parts by weight of ethylene polymer.
Claim 40
Dependent Claim
18 words
A process for insulating an electrical conductor comprising extruding the composition of claim 1 onto an electrical conductor.
Claim 41
Dependent Claim
18 words
A process for insulating an electrical conductor comprising extruding the composition of claim 2 onto an electrical conductor.
Claim 42
Dependent Claim
18 words
A process for insulating an electrical conductor comprising extruding the composition of claim 3 onto an electrical conductor.
Claim 43
Dependent Claim
18 words
A process for insulating an electrical conductor comprising extruding the composition of claim 4 onto an electrical conductor.
Claim 44
Dependent Claim
18 words
A process for insulating an electrical conductor comprising extruding the composition of claim 5 onto an electrical conductor.
Claim 45
Dependent Claim
18 words
A process for insulating an electrical conductor comprising extruding the composition of claim 6 onto an electrical conductor.
Claim 46
Dependent Claim
18 words
A process for insulating an electrical conductor comprising extruding the composition of claim 7 onto an electrical conductor.
Claim 47
Dependent Claim
18 words
A process for insulating an electrical conductor comprising extruding the composition of claim 8 onto an electrical conductor.
Claim 48
Dependent Claim
18 words
A process for insulating an electrical conductor comprising extruding the composition of claim 9 onto an electrical conductor.
Claim 49
Dependent Claim
18 words
A process for insulating an electrical conductor comprising extruding the composition of claim 10 onto an electrical conductor.
Claim 50
Dependent Claim
21 words
A process for shielding an electrical conductor comprising extruding the composition of claim 11 onto an electrical conductor to be shielded.
Claim 51
Dependent Claim
21 words
A process for shielding an electrical conductor comprising extruding the composition of claim 12 onto an electrical conductor to be shielded.
Claim 52
Dependent Claim
21 words
A process for shielding an electrical conductor comprising extruding the composition of claim 13 onto an electrical conductor to be shielded.
Claim 53
Dependent Claim
21 words
A process for shielding an electrical conductor comprising extruding the composition of claim 14 onto an electrical conductor to be shielded.
Claim 54
Dependent Claim
21 words
A process for shielding an electrical conductor comprising extruding the composition of claim 15 onto an electrical conductor to be shielded.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-03-09 | 1984-09-08 | 1985-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-09 | 1988-09-08 | 1989-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-09 | 1992-09-08 | 1993-03-10 | $7700.00 | Window Closed / Lapsed |