Fluororesin compositions, heat-shrinkable tubings and insulated wires employing the fluororesin compositions

摘要

A fluororesin composition is disclosed which includes vinylidene fluoride, tetrafluoroethylene and hexafluoropropylene copolymerized in a specific proportional ratio and a multifunctional monomer as an auxiliary cross-linking agent. The composition may optionally include an organic phosphite or a light stabilizer in a predetermined proportion. A heat- shrinkable tubing made from the fluororesin composition and an insulated wire incorporating an insulation layer or an insulating coating comprised of the fluororesin composition are further disclosed.