Patent US4022945A successfully refreshed from Google Patents.
US4022945A
Expired / Lapsed
US
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Electric conductor product having a flame resistant insulation
Assignee: Vulkor Inc
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Filing: 1975-06-09
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Granted: 1977-05-10
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Expires: 1995-06-09
Abstract
Abstract An improved and economical fire retarding system for polymeric compositions comprising the combination of a halogen-containing hydrocarbon and an oxide of iron; a method of rendering polymeric compositions resistant to flame; and the flame resistant polymeric compositions and products comprising the same.
Inventors
- 👤 Burton Thornley MacKenzie, Jr.
- 👤 Sidney Rothenberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:00
CPC Classifications
H; H01; H01B; H01B7/00; H01B7/17; H01B7/29; H01B7/295; C; C08; C08K; C08K3/00; C08K3/18; C08K3/20; C08K3/22; C08K5/00; C08K5/02; H01B3/00; H01B3/18; H01B3/30; H01B3/44; H01B3/441; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/294; Y10T428/2958
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
89 words
An electrical conductor having a flame resistant insulation thereabout, comprising a metallic conductor and an insulating composition comprising a polymeric polyolefin containing a combination of at least one brominecontaining hydrocarbon selected from the group consisting of hexabromobiphenyl, decabromobiphenyl and decabromobiphenyl oxide in an amount of about 8 to about 50 percent by weight of bromine based upon the organic content of the insulating composition with an oxide of iron in an amount of about 3 to about 15 percent by weight of the organic content of the insulation composition.
Claim 2
Dependent Claim
89 words
An electrical conductor having a flame resistant insulation thereabout, comprising a metallic conductor and an insulating composition comprising a polymeric polyolefin containing a combination of at least one brominecontaining hydrocarbon selected from the group consisting of hexabromobiphenyl, decabromobiphenyl and decabromobiphenyl oxide in an amount of about 8 to about 50 percent by weight of bromine based upon the organic content of the insulating composition with an oxide of iron in an amount of about 3 to about 15 percent by weight of the organic content of the insulation composition.
Claim 3
Dependent Claim
76 words
The electrical conductor having a flame resistant insulation of claim 1, wherein the bromine-containing hydrocarbon is present in the insulating composition in an amount sufficient to provide about 15 to about 35 percent by weight of bromine based upon the weight of the organic content of the insulating composition and the oxide of iron is present in an amount of about 5 to about 10 percent by weight of the organic contents of the insulating composition.
Claim 4
Dependent Claim
19 words
The electrical conductor having a flame resistant insulation of claim 2, wherein the polymeric polyolefin is an ethylene-containing polymer.
Claim 5
Dependent Claim
17 words
The electrical conductor having a flame resistant insulation of claim 1, wherein the bromine-containing hydrocarbon is hexabromobiphenyl.
Claim 6
Dependent Claim
17 words
The electrical conductor having a flame resistant insulation of claim 1, wherein the bromine-containing hydrocarbon is decabromobiphenyl.
Claim 7
Dependent Claim
18 words
The electrical conductor having a flame resistant insulation of claim 1, wherein the bromine-containing hydrocarbon is decabromobiphenyl oxide.
Claim 8
Dependent Claim
17 words
The electrical conductor having a flame resistant insulation of claim 1, wherein the polymeric polyolefin comprises polyethylene.
Claim 9
Dependent Claim
18 words
The electrical conductor having a flame resistant insulation of claim 1, wherein the polymeric polyolefin is crosslink cured.
Claim 10
Dependent Claim
89 words
An electrical conductor having a flame resistant insulation thereabout, comprising a metallic conductor and an insulating composition comprising an ethylene-containing polymer including the combination of at least one bromine-containing hydrocarbon selected from the group consisting of hexabromobiphenyl, decabromobiphenyl and decabromobiphenyl oxide in an amount sufficient to provide at least about 15 percent by weight of bromine based upon the organic content of the insulating composition, with an oxide of iron in an amount of at least about 5 percent by weight of the organic content of the insulating composition.
Claim 11
Dependent Claim
89 words
An electrical conductor having a flame resistant insulation thereabout, comprising a metallic conductor and an insulating composition comprising an ethylene-containing polymer including the combination of at least one bromine-containing hydrocarbon selected from the group consisting of hexabromobiphenyl, decabromobiphenyl and decabromobiphenyl oxide in an amount sufficient to provide at least about 15 percent by weight of bromine based upon the organic content of the insulating composition, with an oxide of iron in an amount of at least about 5 percent by weight of the organic content of the insulating composition.
Claim 12
Dependent Claim
93 words
An electrical conductor having a flame resistant insulation thereabout, comprising a metallic conductor and an insulating composition comprising a crosslink cured ethylene-containing polymer including the combination of at least one bromine-containing hydrocarbon selected from the group consisting of hexabromobiphenyl, decabromobiphenyl and decabromobiphenyl oxide in an amount sufficient to provide about 8 to about 50 percent by weight of bromine based upon the organic content of the insulating composition, with an oxide of iron in an amount of about 3 to about 15 percent by weight of the organic content of the insulating composition.
Claim 13
Dependent Claim
93 words
An electrical conductor having a flame resistant insulation thereabout, comprising a metallic conductor and an insulating composition comprising a crosslink cured ethylene-containing polymer including the combination of at least one bromine-containing hydrocarbon selected from the group consisting of hexabromobiphenyl, decabromobiphenyl and decabromobiphenyl oxide in an amount sufficient to provide about 8 to about 50 percent by weight of bromine based upon the organic content of the insulating composition, with an oxide of iron in an amount of about 3 to about 15 percent by weight of the organic content of the insulating composition.
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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) | 1980-05-09 | 1980-11-08 | 1981-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-09 | 1984-11-08 | 1985-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-09 | 1988-11-08 | 1989-05-10 | $7700.00 | Window Closed / Lapsed |