SINTERED FILTER MADE OF PLASTIC

摘要

PURPOSE:To provide a filter excellent in processability, free from molding irregularity, having a homogenous pore size and excellent in mechanical characteristics such as tensile strength. CONSTITUTION:Premixed fine particles composed of at least one kind of polymer selected from polytetrafluoroethylene, a tetrafluoroethylene/ hexafluoropropylene copolymer and polyvinylidene fluoride are bonded to the voids on the surface side of a permeable porous substrate obtained by sintering and molding grapy ultrahigh mol.wt. polyethylene.