Patent US3793476A successfully refreshed from Google Patents.
US3793476A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insulated conductor with a strippable layer
Assignee: Vulkor Inc
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Filing: 1973-02-26
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Granted: 1974-02-19
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Expires: 1993-02-26
Abstract
Abstract A composite of polymeric materials which are adheringly joined to each other and which can be easily and cleanly separated by stripping apart with a low pulling force whereupon the contacting surfaces of their interface separate cleanly without retention of any residue from the other, and which comprises the combination of a body of ethylene polymer adjoined to a body of an elastomeric blend of polymers comprising ethylene-propylene rubber admixed with a chlorine containing rubber. The combination of materials is especially advantageous when used in wire and cable constructions as a composite of an electrical insulation and an overlying strippable semiconductive layer.
Inventors
- 👤 T Misiura
- 👤 J Vostovich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:33
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/308; B; B32; B32B; B32B27/00; B32B27/06; B32B27/08; B32B1/00; B32B1/08; B32B27/18; B32B27/20; H01B3/44; H01B3/441; H01B7/00; H01B7/17; H01B7/18; H01B7/187; H01B9/00; H01B9/02; H01B9/027; B32B2270/00; B32B2457/00; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24851; Y10T428/2486
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
42 words
The easily and cleanly strippable composite of cured polymeric materials of claim 1, wherein said elastomeric blend comprises about 25 to 45 parts by weight of a rubbery polymer of ethylene-propylene admixed with about 55 to 75 parts by weight of polychloroprene.
Claim 2
Dependent Claim
44 words
The easily and cleanly strippable composite of cured polymeric materials of claim 1, wherein said elastomeric blend comprises about 30 to 40 parts by weight of a rubbery polymer of ethylene-propylene substantially homogeneously admixed with about 60 to 70 parts by weight of polychloroprene.
Claim 3
Dependent Claim
42 words
The easily and cleanly strippable composite of cured polymeric materials of claim 1, wherein said elastomeric blend comprises about 25 to 40 parts by weight of rubbery polymers of ethylene-propylene admixed with about 60 to 75 parts by weight of chlorosulfonated polyethylene.
Claim 4
Dependent Claim
44 words
The easily and cleanly strippable composite of cured polymeric materials of claim 1, wherein said elastomeric blend comprises about 30 to 35 parts by weight of rubbery polymer of ethylene-propylene substantially homogeneously admixed with about 65 to 70 parts by weight of chlorosulfonated polyethylene.
Claim 5
Dependent Claim
132 words
An insuLated metallic electrical conductor having a covering thereon comprising polymeric materials including a composite of an electrically insulating body of cured ethylene polymer with a surface adheringly joined to a contacting surface of an easily and cleanly strippable overlying semiconductive body comprising an elastomeric blend of about 20 to 45 parts by weight of rubbery polymers of ethylene-propylene admixed with about 55 to 80 parts by weight of at least one chlorine containing elastomers selected from the group consisting of polychloroprene and chlorosulfonated polyethylene, said contacting surfaces of the insulating body and overlying semiconductive body being adheringly joined to each other by means of at least one of said polymeric materials having been cured while the said surfaces of each of the bodies are in adjoining physical contact with each other.
Claim 6
Dependent Claim
20 words
The insulating metallic electrical conductor of claim 6, wherein the said elastomeric blend contains an electrically conductive filler dispersed therethrough.
Claim 7
Dependent Claim
31 words
The insulated metallic electrical conductor of claim 7, wherein the said electrically conductive filler is present in an amount of about 15 to 75 percent by weight of the elastomeric blend.
Claim 8
Dependent Claim
36 words
The insulated electrical conductor of claim 6, wherein said elastomeric blend comprises about 25 to 45 parts by weight of a rubbery polymer of ethylene-propylene admixed with about 55 to 75 parts by weight of polychloroprene.
Claim 9
Dependent Claim
39 words
The insulated metallic electrical conductor of claim 6, wherein said elastomeric blend comprises about 30 to 40 parts by weight of a rubbery polymer of ethylene-propylene substantially homogeneously admixed with about 60 to 70 parts by weight of polychloroprene.
Claim 10
Dependent Claim
38 words
The insulated metallic electrical conductor of claim 6, wherein said elastomeric blend comprises about 25 to 40 parts by weight of a rubbery polymer of ethylene-propylene admixed with about 60 to 75 parts by weight of chlorosulfonated polyethylene.
Claim 11
Dependent Claim
40 words
The insulated metallic electrical conductor of claim 6, wherein said elastomeric blend comprises about 30 to 35 parts by weight of a rubbery polymer of ethylene-propylene substantially homogeneously admixed with about 60 to 75 parts by weight of chlorosulfonated polyethylene.
References Cited (Backward Citations)
US3653423A
Cited
US3646248A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-02-18 | 1977-08-20 | 1978-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-18 | 1981-08-20 | 1982-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-18 | 1985-08-20 | 1986-02-19 | $7700.00 | Window Closed / Lapsed |