Thermally conductive compositions and cables thereof
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H01B-007/00
C09K-005/14
H01B-003/44
H01B-001/02
H01B-007/295
출원번호
US-0566134
(2014-12-10)
등록번호
US-9777206
(2017-10-03)
발명자
/ 주소
Ranganathan, Sathish Kumar
Mhetar, Vijay
Siripurapu, Srinivas
Malinoski, Jon Michael
출원인 / 주소
General Cable Technologies Corporation
대리인 / 주소
Ulmer & Berne LLP
인용정보
피인용 횟수 :
0인용 특허 :
28
초록▼
Thermally conductive compositions exhibiting a thermal conductivity of 0.30 W/mK or more include a base polyolefin, a halogenated flame retardant, a non-halogenated flame retardant, and a flame retardant synergist. Cables include insulation and/or jacket layers formed of such thermally conductive co
Thermally conductive compositions exhibiting a thermal conductivity of 0.30 W/mK or more include a base polyolefin, a halogenated flame retardant, a non-halogenated flame retardant, and a flame retardant synergist. Cables include insulation and/or jacket layers formed of such thermally conductive compositions.
대표청구항▼
1. A cable consisting of: a conductor; andan insulation layer,wherein the insulation layer is formed of a thermally conductive composition comprising: a base polyolefin;a halogenated flame retardant;from about 90 phr to about 200 phr of a non-halogenated flame retardant, the non-halogenated flame re
1. A cable consisting of: a conductor; andan insulation layer,wherein the insulation layer is formed of a thermally conductive composition comprising: a base polyolefin;a halogenated flame retardant;from about 90 phr to about 200 phr of a non-halogenated flame retardant, the non-halogenated flame retardant comprising magnesium hydroxide; anda flame retardant synergist; andwherein the thermally conductive composition has a thermal conductivity of 0.30 W/mK or more and the cable passes the UL 1581 VW-1 test. 2. The cable of claim 1, wherein the thermally conductive composition comprises about 10 phr to about 70 phr of the halogenated flame retardant, and the halogenated flame retardant comprises a brominated flame retardant. 3. The cable of claim 1, wherein the thermally conductive composition comprises about 5 phr to about 35 phr of the flame retardant synergist, and the flame retardant synergist comprises antimony oxide. 4. The cable of claim 1, wherein the magnesium hydroxide is surface treated with vinyl silane. 5. The cable of claim 1, wherein the magnesium hydroxide has a mean particle size of about 0.1 micron to about 10 microns. 6. The cable of claim 1, wherein the thermally conductive composition further comprises one or more of a crosslinking agent, a filler, an antioxidant, a stabilizer, a colorant, a processing aid, a smoke suppressant, and a second non-halogenated flame retardant. 7. The cable of claim 6, wherein the thermally conductive compositions comprises about 10 phr, or less, of the processing aid. 8. The cable of claim 6, wherein the thermally conductive composition comprises about 5 phr to about 50 phr of at least one of the filler or the smoke suppressant. 9. The cable of claim 6, wherein the thermally conductive composition comprises a second non-halogenated flame retardant, wherein the second non-halogenated flame retardant comprises a phosphorus based flame retarder. 10. The cable of claim 1, wherein the thermally conductive composition passes the UL-44 Long Term Insulation Resistance (LTIR) test at 90° C. 11. The cable of claim 1, wherein the thermally conductive composition has an emissivity greater than about 0.5. 12. The cable of claim 1, wherein the base polyolefin comprises ethylene-butene copolymer, ethylene propylene diene monomer rubber, ethylene-vinyl acetate copolymer, or a blends or combinations thereof. 13. The cable of claim 1, wherein the base polyolefin further comprises a maleic anhydride modified polyolefin. 14. The cable of claim 13, wherein about 1% to about 15% of the base polyolefin comprises the maleic anhydride modified polyolefin. 15. The cable of claim 1, wherein the conductor is formed from one or more of copper, aluminum, a copper alloy, and an aluminum alloy. 16. The cable of claim 1, wherein the thermally conductive composition exhibits an elongation at break of about 100% or more.
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