# US 8,772,396 B2 · Poly(arylene ether)—polyolefin composition and its use in wire and cable insulation and sheathing > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,772,396 B2 - Document ID: US8772396B2 - Status: Granted - Kind: B2 - Application number: 13/265,925 - Filed: 2010-12-07 - Published: 2013-10-03 - Granted: 2014-07-08 - Earliest claimed: 2010-12-07 - Assignees: Sabic Innovative Plastics IP B.V. - Applicants: Weili Qiu; Xiucuo Li; Wei Shan - Inventors: Weili Qiu; Xiucuo Li; Wei Shan - Web page: https://patentgrep.com/patent/US8772396B2 ## CPC - C08L 23/0815: {with aliphatic 1-olefins containing one carbon-to-carbon double bond} - C08K 3/22: of metals - C08L 9/06: Copolymers with styrene - C08L 23/20: having four to nine carbon atoms - C08L 23/26: modified by chemical after-treatment (saponified copolymers C08L23/0861; unsaturated acid salts C08L23/0876) - C08L 53/005: {Modified block copolymers} - C08L 53/02: of vinyl-aromatic monomers and conjugated dienes - C08L 71/08: Polyethers derived from hydroxy compounds or from their metallic derivatives (C08L71/02 takes precedence) - C08L 71/12: Polyphenylene oxides - H01B 3/427: {Polyethers} - H01B 3/441: {from alkenes} - H01B 7/02: Disposition of insulation - C08L 23/06: Polyethylene - C08L 23/10: Homopolymers or copolymers of propene - C08L 23/22: Copolymers of isobutene; Butyl rubber; Homopolymers or copolymers of other iso-olefins - C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06) - C08K: Use of inorganic or non-macromolecular organic substances as compounding ingredients (paints, inks, varnishes, dyes, polishes, adhesives C09) - H01B: CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES (selection for magnetic properties H01F1/00; waveguides H01P {; printed circuits H05K}) ## Abstract A composition includes specific amounts of a poly(arylene ether), an unfunctionalized hydrogenated triblock copolymer, an unfunctionalized polyolefin, and magnesium dihydroxide. The composition is useful for forming insulation and sheath layers of wire and cable. ## Claims ### Claim 1 An insulated conductor, comprising: a conductor; an insulating layer surrounding the conductor; wherein the insulating layer comprises an insulating layer composition comprising about 10 to about 35 weight percent of a poly(arylene ether); about 8 to about 16 weight percent of an unfunctionalized hydrogenated triblock copolymer of an alkenyl aromatic compound and a conjugated diene; wherein the unfunctionalized hydrogenated triblock copolymer has a weight average molecular weight less than or equal to 200,000 atomic mass units; about 15 to about 30 weight percent of an unfunctionalized polyolefin comprising about 14 to about 30 weight percent of an unfunctionalized ethylene-octene copolymer; and 43 to 60 weight percent of a magnesium dihydroxide; wherein the ma nesiu dihydroxide la er composition m osition comprises a stearic acid-treated magnesium dihydroxide; wherein all weight percents are based on the total weight of the insulating layer composition; and a sheath layer surrounding the insulating layer; wherein the sheath layer comprises a sheath layer composition comprising about 10 to about 35 weight percent of a poly(arylene ether); about 8 to about 16 weight percent of an unfunctionalized hydrogenated triblock copolymer of an alkenyl aromatic compound and a conjugated diene; wherein the unfunctionalized hydrogenated triblock copolymer has a weight average molecular weight less than or equal to 200,000 atomic mass units; about 15 to about 30 weight percent of an unfunctionalized polyolefin comprising about 14 to about 30 weight percent of an unfunctionalized ethylene-octene copolymer; and about 20 to about 40 weight percent of a magnesium dihydroxide; wherein the magnesium dihydroxide of the sheath layer composition comprises an amino magnesium dihydroxide; wherein all weight percents are based on the total weight of the sheath layer composition. ### Claim 2 (depends on 1) The insulated conductor of claim 1, wherein the insulating layer composition further comprises about 2 to about 8 weight percent of an acid-functionalized polyolefin, an acid-functionalized hydrogenated block copolymer of an alkenyl aromatic compound and a conjugated diene, or a combination thereof. ### Claim 3 (depends on 1) The insulated conductor of claim 1, wherein the sheath layer composition further comprises about 2 to about 8 weight percent of an acid-functionalized polyolefin, an acid-functionalized hydrogenated block copolymer of an alkenyl aromatic compound and a conjugated diene, or a combination thereof. ### Claim 4 (depends on 1) The insulated conductor of claim 1, wherein the insulating layer composition comprises about 10 to about 20 weight percent of the poly(arylene ether); about 8 to about 13 weight percent of the unfunctionalized hydrogenated triblock copolymer; about 15 to about 25 weight percent of the unfunctionalized polyolefin; wherein the unfunctionalized polyolefin comprises about 14 to about 21 weight percent of the unfunctionalized ethylene-octene copolymer; and 43 to 56 weight percent of the magnesium dihydroxide. ### Claim 5 (depends on 4) The insulated conductor of claim 4, wherein the unfunctionalized polyolefin of the insulating layer composition further comprises about 1.5 to about 4.5 weight percent of a linear low density polyethylene. ### Claim 6 (depends on 4) The insulated conductor of claim 4, wherein the insulating layer composition further comprises about 3 to about 7 weight percent of an acid-functionalized polyolefin; wherein the acid-functionalized polyolefin comprises a maleic anhydride-functionalized ethylene-octene copolymer. ### Claim 7 (depends on 1) The insulated conductor of claim 1, wherein the sheath layer composition comprises about 20 to about 30 weight percent of the poly(arylene ether); about 9 to about 15 weight percent of the unfunctionalized hydrogenated triblock copolymer; wherein the unfunctionalized hydrogenated triblock copolymer has a weight average molecular weight less than or equal to 200,000 atomic mass units; about 22 to about 30 weight percent of the unfunctionalized polyolefin; wherein the unfunctionalized polyolefin comprises about 15 to about 22 weight percent of an unfunctionalized ethylene-octene copolymer; and about 25 to about 35 weight percent of the magnesium dihydroxide. ### Claim 8 (depends on 7) The insulated conductor of claim 7, wherein the unfunctionalized polyolefin of the sheath layer composition further comprises about 3 to about 7 weight percent of a polybutene and about 1.5 to about 4.5 weight percent of a linear low density polyethylene. ### Claim 9 (depends on 7) The insulated conductor of claim 7, wherein the sheath layer composition further comprises about 3 to about 7 weight percent of an acid-functionalized polyolefin; wherein the acid-functionalized polyolefin comprises a maleic anhydride-functionalized ethylene-octene copolymer. ### Claim 10 (depends on 1) The insulated conductor of claim 1, wherein the insulating layer composition comprises about 10 to about 20 weight percent of the poly(arylene ether); about 8 to about 13 weight percent of the unfunctionalized hydrogenated triblock copolymer; about 15 to about 25 weight percent of the unfunctionalized polyolefin; wherein the unfunctionalized polyolefin comprises about 14 to about 21 weight percent of the unfunctionalized ethylene-octene copolymer; and 43 to 56 weight percent of the magnesium dihydroxide; and wherein the sheath layer composition comprises about 20 to about 30 weight percent of the poly(arylene ether); about 9 to about 15 weight percent of the unfunctionalized hydrogenated triblock copolymer; wherein the unfunctionalized hydrogenated triblock copolymer has a weight average molecular weight less than or equal to 200,000 atomic mass units; about 22 to about 30 weight percent of an unfunctionalized polyolefin; wherein the unfunctionalized polyolefin comprises about 15 to about 22 weight percent of an unfunctionalized ethylene-octene copolymer; and about 25 to about 35 weight percent of the magnesium dihydroxide. ### Claim 11 (depends on 10) The insulated conductor of claim 10, wherein the unfunctionalized polyolefin of the insulating layer composition further comprises about 1.5 to about 4.5 weight percent of a linear low density polyethylene. ### Claim 12 (depends on 10) The insulated conductor of claim 10, wherein the insulating layer composition further comprises about 3 to about 7 weight percent of an acid-functionalized polyolefin comprising a maleic anhydride-functionalized ethylene-octene copolymer. ### Claim 13 (depends on 10) The insulated conductor of claim 10, wherein the unfunctionalized polyolefin of the sheath layer composition further comprises about 3 to about 7 weight percent of a polybutene and about 1.5 to about 4.5 weight percent of a linear low density polyethylene. ### Claim 14 (depends on 10) The insulated conductor of claim 10, wherein the sheath layer composition further comprises about 3 to about 7 weight percent of an acid-functionalized polyolefin; wherein the acid-functionalized polyolefin comprises a maleic anhydride-functionalized ethylene-octene copolymer.