FLAME-RETARDANT TUBE AND HEAT-SHRINKABLE TUBE MADE BY USING THE SAME

摘要

A non-halogen type flame-retardant tube which exhibits satisfactory flame retardance, tensile characteristics under high temperature, and heat deformation resistance; and a heat -shrinkable tube, more specifically, a flame-retardant tube produced by molding a flame-retardant resin composition which comprises 100 parts by mass of a base polymer comprising 5 to 80mass% of polyphenylene ether, 20 to 95mass% of a styrenic thermoplastic elastomer, and 0 to 70mass% of an olefinic polymer, 5 to 100 parts by mass of a phosphorus-containing flame retardant, 3 to 80 parts by mass of a nitrogenous organic compound, and 1 to 20 parts by mass of a polyfunctional monomer into a tube and irradiating the tube with an electron beam; and a heat-shrinkable tube produced by subjecting the tube to diameter expansion under heating and then setting the tube by cooling.