Claims
- 1. An electrical conductor comprising a metallic conductive element having a halogen-free, flame-resistant, crosslink curable polyolefin polymer compound insulation thereabout comprising the following, in the approximate relative parts by weight of
- ______________________________________Polyolefin 100Organopolysiloxane gum 2-20Organic Lead compound 1-15______________________________________
- 2. The electrical conductor of claim 1, wherein the polyolefin polymer is crosslink cured.
- 3. The electrical conductor of claim 1, wherein the polyolefin polymer comprises at least one ethylene-containing polymer selected from the group consisting of polyethylene, copolymers of ethylene and other polymerizable materials, and blends of such polymers.
- 4. The electrical conductor of claim 3, wherein the polyolefin polymer has been crosslink cured with an organic peroxide curing agent.
- 5. An electrical conductor comprising a metallic conductor element having a halogen-free, flame-resistant, crosslink cured polyolefin polymer compound insulation thereabout comprising the following, in the approximate relative parts by weight of
- ______________________________________Polyolefin 100Organopolysiloxane gum 2-10Organic Lead compound 1-5Fumed silica 1-6Antioxidant 1-3Filler 0-50______________________________________
- 6. The electrical conductor of claim 5, wherein the polyolefin polymer has been crosslink cured with an organic peroxide curing agent.
- 7. The electrical conductor of claim 5, wherein the polyolefin polymer comprises at least one ethylene-containing polymer selected from the group consisting of polyethylene, copolymers of ethylene and other polymerizable materials, and blends of such polymers.
- 8. The electrical conductor of claim 7, wherein the ethylene-containing polymer has been crosslink cured with an organic peroxide curing agent.
- 9. The electrical conductor of claim 8, wherein the antioxidant of the organopolysiloxane of the ethylene containing polymer insulation is polydimethysiloxane.
- 10. The electrical conductor of claim 8, wherein the antioxidant of the ethylene containing polymer compound insulation is polymerized 1,2-dihydro-2,2,4-trimethylquinoline.
- 11. An electrical conductor comprising a metallic conductor element having a halogen-free, flame-resistant, crosslink cured polyethylene compound insulation thereabout comprising the cured product of the following, in the approximate parts by weight of
- ______________________________________Polyethylene 100Organopolysiloxane gum 2-20Dibasic lead phthalate 1-5Fumed silica 1-6Antioxidant 0-5Antimony oxide 0-15Organic peroxide curing agent 1-10______________________________________
- 12. The electrical conductor of claim 11, wherein the organopolysiloxane of the polyethylene compound insulation is polydimethyl siloxane.
- 13. The electrical conductor of claim 11, wherein the antioxidant of the polyethylene compound insulation is polymerized 1,2-dihydro-2,2,4-trimethylquinoline.
- 14. An electrical conductor comprising a metallic conductor element having a halogen-free, flame-resistant, crosslink cured polyethylene compound insulation thereabout comprising the cured product of the following, in the approximate parts by weight of
- ______________________________________Polyethylene 100Organopolysiloxane gum 3-5Dibasic lead phthalate 2-4Fumed silica 2-5Antioxidant, polymerized, 1-31,2-dihydro-2,2,4-trimethyl-quinolineSilicone liquid 0-5Organic peroxide curing agent 1-5______________________________________
- 15. The electrical conductor of claim 14, wherein the organopolysiloxane of the polyethylene compound insulation is polydimethyl siloxane.
- 16. The electrical conductor of claim 1 wherein the organopolysiloxane gum has a Brookfield viscosity in excess of 100.000 centipoise at 25.degree. C.
- 17. The electricial conductor of claim 1 wherein the polyolefin is 100 parts by weight of polyethylene, the organoploysiloxane gum is 4 parts by weight and the lead compound is 3 parts by weight of dibasic lead phthalate.
Parent Case Info
This is a continuation of Ser. No. 516,609, filed July 25, 1983, now abandoned, which is a continuation of Ser. No. 285,655, filed July 21, 1981, now abandoned, which is a continuation-in-part of copending application of Joseph E. Betts and Fred F. Holub, Ser. No. 816,854, filed 7-18-77, now abandoned. Reference is also made to Ser. No. 816,855, filed July 18, 1977, now abandoned, for Flame Resistant Compositions and Electrical Products Thereof, to Ser. No. 006,713, filed Jan. 26, 1979, now U.S. Pat. No. 4,209,566 to U.S. Pat. No. 4,123,586, to U.S. Pat. No. 4,273,691, and to Ser. No. 196,989, filed Oct. 14, 1980, now abandoned, all assigned to the same assignee as the present invention.
US Referenced Citations (8)
Continuations (2)
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Date |
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516609 |
Jul 1983 |
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Parent |
285655 |
Jul 1981 |
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Continuation in Parts (1)
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816854 |
Jul 1977 |
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