Patent ID: 7182897

Claim:
A method of storing a material into which a gas saturates, wherein a gas is allowed to saturate into a resin material at a saturation pressure P (MPa) of not less than 4 (MPa) and a temperature T (° C.), and, letting m (−0.05<m<0.2) be a coefficient determined by a material type and a gas saturation time, the material is stored in an ambient defined by a pressure p (MPa) represented by: p=P (0.02 P+m ), and a temperature t represented by 0.1875 T− 10< t< 0.5 T− 10, where 20° C.≦T≦60° C., and represented by: 0.1875 T− 10< t≦ 20° C., where T>60° C.