| 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. |
