RESIN COMPOSITION FOR SOLID POLYMER TYPE FUEL CELL SEAL, SOLID MATERIAL FOR SOLID POLYMER FUEL CELL USING THE RESIN COMPOSITION, AND SOLID POLYMER FUEL CELL USING THE SEAL

摘要

PROBLEM TO BE SOLVED: To provide a resin composition for a solid polymer fuel cell sealing material, good in heat resistance, hot water resistance and acid resistance.SOLUTION: A resin composition of a sealing material 16 for a solid polymer fuel battery cell 10 contains a copolymer resin which is obtained through copolymerization of a raw material component including (a) 20 mass% or more of methyl methacrylate and (b) 20 mass% or less of glycidyl-methacrylate and has a weight average molecular weight of 300,000 or more. Preferably, the raw material component furthermore contains (c) one or more other polymerizable monomers selected from hydroxyalkyl alkyl methacrylate and alkyl methacrylate.