Abstract: The improved thermotropic LCP composition comprises 10-13 wt. % of a thermotropic liquid crystal polymer resin and 90-87 wt. % of zircon and is useful as an electrical insulator. The composition is a good electrical insulator, permits good heat conduction and experiences small thermal expansion, thus insuring high reliability. The composition may be injection molded to form an electrically insulated housing of a stator for electric machines or appliances that includes a coil and terminals thereof.

Abstract: The improved thermotropic LCP composition comprises 10-13 wt % of a thermotropic liquid crystal polymer resin and 90-87 wt % of zircon and is useful as an electrical insulator. The composition is a good electrical insulator, permits good heat conduction and experiences small thermal expansion, thus insuring high reliability. The composition may be injection molded to form an electrically insulated housing of a stator for electric machines or appliances that includes a coil and terminals thereof.

Abstract: A structural member comprising a main body molded of synthetic resin, an insert portion molded from a engineering plastic having better functional properties at least in respect of strength than those of an ordinary synthetic resin and a metallic reinforcement ring entirely embedded in the structural member between the main body and the insert portion is disclosed. The foremost end part of another member is threadly engaged with a plurality of female threads around the inner surface of the insert portion or press fitted into the insert portion.

Abstract: This invention is directed to a fluid pump containing a structural member, such as casing, which the fluid contacts as it enters the pump, and to a structural member having sufficient mechanical strength and flexibility for use in a fluid pump, such as a casing, which 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.degree. C., elongation at break of 15 to 80%, and flexural modulus of elasticity of 170 kg/mm.sup.2 or above.