HIGH PRESSURE GAS CONTAINER

To provide a high pressure gas container which can inhibit gas leakage caused when increase and decrease of an internal pressure are repeated.SOLUTION: A high pressure gas container includes: a resin liner 12 in which a hollow part to be filled with a gas is formed; a mouth piece 14 provided at the resin liner 12 and used to fill the interior with the gas; a fiber-reinforced reinforcement layer 20 which covers the resin liner 12; and a seal ring 28 which is provided at the mouth piece 14 and contacts with the resin liner 12 to seal a space between the resin liner 12 and the mouth piece 14. In the resin liner 12, a portion which faces the hollow part is formed with a first resin material 13 and a portion which contacts with the seal ring 28 is formed with a second resin material 15 which is less likely to be compressive-deformed than the first resin material 13.SELECTED DRAWING: Figure 3 【課題】内圧の上昇と下降とが繰り返された際のガス漏れを抑制可能な高圧ガス容器を提供する。【解決手段】高圧ガス容器は、内部にガスを充填する中空部が形成された樹脂製ライナー１２と、樹脂製ライナー１２に設けられ、内部にガスを充填させるための口金１４と、樹脂製ライナー１２を覆う繊維強化補強層２０と、口金１４に設けられ、樹脂製ライナー１２と接触して樹脂製ライナー１２との間をシールするシールリング２８と、を備え、樹脂製ライナーは１２、中空部に面する部分が第１の樹脂材料１３で形成され、シールリング２８が接触する部位が、第１の樹脂材料１３よりも圧縮変形し難い第２の樹脂材料１５で形成されている。【選択図】図３