Insulating resin composition and insulated wire

• Main Authors: OCHI YUJI, SHINOMIYA ATSUKO, NISHIKAWA SHINYA, FUJITA TARO, TANAKA SHIGEYUKI
• Format: Patent
• Language: Chinese; English
• Published: 07.12.2016
• Subjects: BASIC ELECTRIC ELEMENTS; CABLES; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; CONDUCTORS; ELECTRICITY; INSULATORS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

Provided are: an insulated wire which is used for wiring of vehicles such as automobiles, and which is mainly composed of a polyolefin resin and has excellent flexibility, heat resistance life and water blocking properties at the same time; an insulating resin composition which is used for the formation of an insulating layer of this insulated wire, and which contains a first copolymer that is a copolymer of ethylene and an unsaturated hydrocarbon having 4 or more carbon atoms and has a density of less than 0.88 g/cm3, a second copolymer that is a copolymer of ethylene and an acrylic acid ester or a methacrylic acid ester, a flame retardant and a crosslinking assistant; and a crosslinked body which has a 2% secant modulus of 35 MPa or less at room temperature and an elastic modulus of 2 MPa or more at 150 DEG C. 本发明提供了种主要含有聚烯烃树脂的绝缘电线，其同时具有优异的柔性、耐热寿命以及防水性能，该绝缘电线用于诸如汽车的车辆的配线中；本发明还提供种用于构成这种绝缘电线的绝缘层的绝缘树脂组合物，其包含第共聚物、第二共聚物、阻燃剂和交联助剂，其中该第共聚物为乙烯和具有4个以上碳原子的不饱和烃的共聚物并且具有小于0.88g/cm的密度，第二共聚物为乙烯与丙烯酸酯或甲基丙烯酸酯的共聚物；本发明还提供了种在室温下