US4153752A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dielectric insulating polyolefin compounds and conductor products insulated therewith
Assignee: United States, AS REPRESENTED BY INTERIOR
•
Filing: 1977-10-19
•
Granted: 1979-05-08
•
Expires: 1997-10-19
Abstract
Abstract Polyolefin compounds containing nitrile polysiloxane fluid which have improved electrical properties, and electrical conductors insulated therewith.
Inventors
- 👤 Burton T. MacKenzie, Jr.
- 👤 Maurice Prober
- 👤 Stanley E. Kiersztyn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:44
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/46; H01B3/465; C; C08; C08K; C08K5/00; C08K5/54; C08K5/544; C08K5/5475; C08L; C08L23/00; C08L23/02; C08L23/04; H01B3/44; H01B3/441; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/294; Y10T428/2962; Y10T428/31504; Y10T428/31652; Y10T428/31663
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
25 words
An electrical conductor with a polymeric dielectric insulation comprising a metal conductor insulated with a cross-link cured, ethylene containing polyolefin compound containing cyanoalkyl polysiloxane fluid.
Claim 2
Dependent Claim
25 words
An electrical conductor with a polymeric dielectric insulation comprising a metal conductor insulated with a cross-link cured, ethylene containing polyolefin compound containing cyanoalkyl polysiloxane fluid.
Claim 3
Dependent Claim
15 words
The electrical conductor of claim 1, wherein the cross-link cured polyolefin compound contains clay filler.
Claim 4
Dependent Claim
33 words
The electrical conductor of claim 2, wherein the cyanoalkyl polysiloxane fluid is present in amount of about 1 to about 5 parts by weight per 100 parts by weight of the clay filler.
Claim 5
Dependent Claim
54 words
An electrical conductor with a polymeric dielectric insulation for direct current transmission, comprising a metal conductor insulated with a cross-link cured polyolefin of at least one polymeric composition containing ethylene selected from the group consisting of the homopolymer of ethylene and copolymers of ethylene and other polymerizable materials, clay filler, and cyanoalkyl polysiloxane fluid.
Claim 6
Dependent Claim
54 words
An electrical conductor with a polymeric dielectric insulation for direct current transmission, comprising a metal conductor insulated with a cross-link cured polyolefin of at least one polymeric composition containing ethylene selected from the group consisting of the homopolymer of ethylene and copolymers of ethylene and other polymerizable materials, clay filler, and cyanoalkyl polysiloxane fluid.
Claim 7
Dependent Claim
33 words
The electrical conductor of claim 4, wherein the cyanoalkyl polysiloxane fluid is present in amount of about 1 to about 5 parts by weight per 100 parts by weight of the clay filler.
Claim 8
Dependent Claim
92 words
An electrical conductor for direct current transmission with a polymeric insulation, comprising a metal conductor insulated with a cross-link cured polyolefin compound including 100 parts by weight of at least one polymeric composition containing ethylene selected from the group consisting of polyethylene and copolymers of ethylene and other polymerizable materials, about 10 to about 200 parts by weight of clay filler per 100 parts by weight of the polymeric composition, and about 1 to about 5 parts by weight of cyanoethyl polysiloxane fluid per 100 parts by weight of the clay filler.
Claim 9
Dependent Claim
92 words
An electrical conductor for direct current transmission with a polymeric insulation, comprising a metal conductor insulated with a cross-link cured polyolefin compound including 100 parts by weight of at least one polymeric composition containing ethylene selected from the group consisting of polyethylene and copolymers of ethylene and other polymerizable materials, about 10 to about 200 parts by weight of clay filler per 100 parts by weight of the polymeric composition, and about 1 to about 5 parts by weight of cyanoethyl polysiloxane fluid per 100 parts by weight of the clay filler.
Claim 10
Dependent Claim
69 words
An electrical conductor for direct current transmission with a polymeric insulation, comprising a metal conductor insulated with a cross-link cured polyethylene compound containing 100 parts by weight of polyethylene, about 25 to about 100 parts by weight of clay filler per 100 parts by weight of polyethylene, and about 1 to about 5 parts by weight of cyanoethyl polysiloxane fluid per 100 parts by weight of the clay filler.
Claim 11
Dependent Claim
69 words
An electrical conductor for direct current transmission with a polymeric insulation, comprising a metal conductor insulated with a cross-link cured polyethylene compound containing 100 parts by weight of polyethylene, about 25 to about 100 parts by weight of clay filler per 100 parts by weight of polyethylene, and about 1 to about 5 parts by weight of cyanoethyl polysiloxane fluid per 100 parts by weight of the clay filler.
Claim 12
Dependent Claim
47 words
An electrical conductor for direct current transmission with a polymeric insulation, comprising a metal conductor insulated with a cross-link cured polyolefin compound containing 100 parts by weight of polyethylene, about 50 parts by weight of clay filler, and about 1.5 parts by weight of cyanoethyl polysiloxane fluid.
Claim 13
Dependent Claim
47 words
An electrical conductor for direct current transmission with a polymeric insulation, comprising a metal conductor insulated with a cross-link cured polyolefin compound containing 100 parts by weight of polyethylene, about 50 parts by weight of clay filler, and about 1.5 parts by weight of cyanoethyl polysiloxane fluid.
References Cited (Backward Citations)
US2888242A
Cited
US3185663A
Cited
US3185719A
Cited
US3148169A
Cited
US3795646A
Cited
US3859247A
Cited
US3957719A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-05-07 | 1982-11-06 | 1983-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-05-07 | 1986-11-06 | 1987-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-05-07 | 1990-11-06 | 1991-05-08 | $7700.00 | Window Closed / Lapsed |