| 摘要 |
A tetrafluoroethylene copolymer composition for injection molding having excellent resistance to chemical permeation and durability, comprised of polytetrafluoroethylene and copolymer of tetrafluoroethylene and perfluoro(alkyl vinyl ether). The composition has a melt flow rate of 12 g/10 min or greater, a flex life of 20,000 cycles or greater, and a nitrogen gas permeability of 0.8x10<SUP>-10 </SUP>cm<SUP>3 </SUP>(STP).cm/cm<SUP>2</SUP>.sec.cm Hg or less. |
