POLYMERIC CASING FOR FLUID MACHINES AND PUMPS

摘要

A fluid pump structural member, such as a casing, which the fluid contacts as it enters the pump, is made of a ring-opened polymer of a norbornene-type monomer containing an effective amount of an elastomer, the structural member has heat distortion temperature of over 120 DEG C, elongation at break of 15 to 80%, and flexural modulus of elasticity of 170 kg/mm<2> or above.