Abstract:
An insulated wire includes a conductor, a flame-retardant inner layer that is provided around the conductor and includes a metal hydroxide, and a water ingress prevention layer provided around the flame-retardant inner layer. The insulated wire may further include a flame-retardant outer layer provided around the water ingress prevention layer.
Abstract:
An insulated wire includes a conductor, and an insulating cover layer including an inner layer on an outer periphery of the conductor and an outer layer on an outer periphery of the inner layer. The inner layer includes a halogen-free resin composition including base polymer (A), which includes a first ethylene-α-olefin copolymer (a1) and a second ethylene-α-olefin copolymer (a2) at a ratio of 50:50 to 90:10, the first ethylene-α-olefin copolymer (a1) having a density of not less than 0.864 g/cm3 and not more than 0.890 g/cm3, a melting point of not more than 90° C. and a melt flow rate of not less than 1 g/10 min and not more than 5 g/10 min, and the second ethylene-α-olefin copolymer (a2) having a melting point of not less than 55° C. and not more than 80° C. and a melt flow rate of not less than 30 g/10 min.
Abstract translation:绝缘电线包括导体和绝缘覆盖层,绝缘覆盖层包括在导体的外周上的内层和内层的外周上的外层。 内层包括含有基础聚合物(A)的无卤素树脂组合物,其包含第一乙烯-α-烯烃共聚物(a1)和第二乙烯-α-烯烃共聚物(a2),比例为50:50至 90:10,密度为0.864g / cm 3以上且0.890g / cm 3以下,熔点为90℃以下的第一乙烯-α-烯烃共聚物(a1)和熔体流动 速度不小于1g / 10min且不超过5g / 10min,第二乙烯-α-烯烃共聚物(a2)的熔点不低于55℃且不大于80℃ 熔体流动速率不小于30g / 10min。
Abstract:
To provide a LAN cable. A LAN cable includes an insulated electrical wire having an insulating layer on an outer periphery of a conductor, a sheath that coats an outer periphery of the insulated electrical wire, and an intermediate layer arranged between the sheath and the insulated electrical wire, the intermediate layer having a mass reduction rate at 800° C. of less than or equal to 80% by mass. The sheath includes a cross-linked matter or a non-halogen flame retardant resin composition in which a mass reduction rate at 800° C. is less than or equal to 60% by mass.
Abstract:
An insulated wire includes a conductor, and an insulation layer covering an outer periphery of the conductor. The insulation layer includes a halogen-free flame-retardant resin composition including a base polymer, not less than 1 part by mass and not more than 10 parts by mass of an amorphous silica and not less than 10 parts by mass and not more than 150 parts by mass of a halogen-free flame retardant relative to 100 parts by mass of the base polymer. The base polymer includes not less than 50 parts by mass and not more than 90 parts by mass of either an ethylene-vinyl acetate copolymer or an ethylene-butene copolymer and not less than 10 parts by mass and not more than 50 parts by mass of a low-density polyethylene.
Abstract:
A non-halogen insulating wire with excellent flame resistance as well as high mechanical characteristics (wear resistance) and electrical insulation characteristics is provided. A non-halogen two-layer insulating wire includes: a conductor; and an insulating layer having an insulating inner layer which covers an outer circumference of the conductor and an insulating outer layer which covers an outer circumference of the insulating inner layer The insulating inner layer is made of a first non-halogen resin composition which contains metal hydroxide and a base polymer (A) including polyolefin, and has a thickness of 20% to 58% of an entire thickness of the insulating layer. The insulating outer layer is made of a second non-halogen resin composition which contains metal hydroxide and a base polymer (B) including polyester resin and/or polyester elastomer resin.
Abstract:
A peroxide crosslinked resin composition includes a base polymer (A) including 50 to 90% by mass of a first copolymer component (a1) including one of or a mixture of two or more first ethylene α-olefin copolymers having a density of 0.864 to 0.890 g/cm3, a melt flow rate (MFR) of 1 to 5 g/10 min, and a melting point of not higher than 90 degrees Celsius, and 10 to 50% by mass of a second copolymer component (a2) including one of or a mixture of two or more second ethylene α-olefin copolymers having a melt flow rate (MFR) of not smaller than 30 g/10 min, and a melting point of 55 to 80 degrees Celsius, an inorganic filler (B) added in a ratio of from 80 parts to 150 parts by mass with respect to 100 parts by mass of the base polymer (A), and a peroxide crosslinker (C).
Abstract translation:过氧化物交联树脂组合物包含含有50〜90质量%的第一共聚物成分(a1)的基础聚合物(A),其包含密度为0.864〜0.890的两种以上的第一乙烯-α-烯烃共聚物中的一种或其混合物 g / cm 3,熔体流动速率(MFR)为1〜5g / 10min,熔点为90℃以下,第2共聚物成分(a2)为10〜50质量% 或两种或更多种熔体流动速率(MFR)不小于30g / 10min,熔点为55至80摄氏度的第二乙烯α-烯烃共聚物的混合物,添加无机填料(B) 相对于100质量份的基础聚合物(A)为80份〜150质量份,以及过氧化物交联剂(C)。
Abstract:
Provided is a LAN cable that includes a sheath; an electrical wire accommodated in the sheath and including a conductor and an insulating body covering the conductor; and an intermediate layer having a mass reduction rate at 500° C. of less than or equal to 10% by mass and a mass reduction rate at 600° C. of less than or equal to 50% by mass, and located between the sheath and the electrical wire. The insulating body includes polyethylene having a dielectric constant of smaller than or equal to 2.5. The sheath includes a polyolefin-based polymer and a flame retardant, and a content of the flame retardant in the sheath is greater than or equal to 150 parts by mass with respect to 100 parts by mass of the polyolefin-based polymer.
Abstract:
An insulated wire includes a conductor, and an insulation layer provided around the conductor. The insulation layer includes an inner layer located on a conductor side and an outer layer provided around the inner layer. The inner layer includes a halogen-free resin composition including a base polymer (A). The outer layer includes a cross-linked body obtained by cross-linking a halogen-free flame-retardant resin composition including a base polymer (B) and a halogen-free flame retardant. The base polymer (A) includes a thermoplastic resin (a1) having an aromatic ring in a backbone chain. The base polymer (B) includes a polyolefin component. A thickness of the inner layer is not less than 0.03 mm and not more than 70% of a thickness of the insulation layer.
Abstract:
A crosslinkable halogen-free resin composition includes a base polymer including at least one type of ethylene-vinyl acetate copolymer (EVA) and an acid-modified polyolefin resin having a glass-transition temperature (Tg) as measured by DSC of not more than −55° C. at a mass ratio of 70:30 to 99:1, and a metal hydroxide included in an amount of 100 to 250 parts by mass per 100 parts by mass of the base polymer. The at least one type of EVA has a melting temperature (Tm) as measured by DSC of not less than 70° C. The base polymer includes 25 to 50 mass % of a vinyl acetate (VA).
Abstract:
In a multi-layer insulated wire including: a conductor; an inner layer formed in periphery of the conductor; and an outer layer formed in periphery of the inner layer, the inner layer is made of a resin composition containing a base polymer containing polyolefin as a main component, and the outer layer is made of a resin composition containing a base polymer containing polyolefin as a main component so as to contain 80 or more and 250 or less parts by mass of metallic hydroxide per 100 parts by mass of the base polymer. The multi-layer insulated wire having an expansion start temperature of the outer layer that is equal to or lower than 344° C. is used.