Filter module case

A filter module case comprising:

• a casing having a substantially cylindrical shape that extends in an axial direction;
• a cap having a substantially cylindrical shape and including an inner wall surface that defines a passage providing communication between an inside and an outside of the casing and extending in the axial direction and a first end portion that receives an end portion of the casing in the passage and is bonded and fixed to the end portion of the casing;
• a first layer arranged at a position closer to an end in the axial direction and facing an outer peripheral surface of the end portion of the casing and the inner wall surface of the first end portion;
• and
• a second layer arranged at a position closer to the center in the axial direction than the first layer is and facing the outer peripheral surface of the end portion of the casing and the inner wall surface of the first end portion,
• wherein the casing and the cap are made of a material with organic solvent resistance,
• the first layer is formed of a first adhesive with organic solvent resistance, and
• the second layer is formed of a second adhesive that has an affinity for hard-to-adhere materials and has a higher elasticity than the first adhesive.

A filter module case comprising:

• a casing having a substantially cylindrical shape that extends in an axial direction;
• a cap that having a substantially cylindrical shape and including an inner wall surface that defines a passage providing communication between an inside and an outside of the casing and extending in the axial direction and a first end portion that is received by an end portion of the casing and is bonded and fixed to the end portion of the casing;
• a first layer arranged at a position closer to the center in the axial direction and facing an inner peripheral surface of the end portion of the casing and an outer peripheral surface of the first end portion;
• and
• a second layer arranged at a position closer to an end in the axial direction than the first layer is and facing the inner peripheral surface of the end portion of the casing and the outer peripheral surface of the first end portion,
• wherein the casing and the cap are made of a material with organic solvent resistance,
• the first layer is formed of a first adhesive with organic solvent resistance, and
• the second layer is formed of a second adhesive that has an affinity for hard-to-adhere materials and has a higher elasticity than the first adhesive.