Window for automobiles or the like, and method of manufacturing the same.

摘要

A window (1) for automobiles or the like includes a window plate (2) and an integral frame member (3) along at least one edge of the window plate. The window (1) is manufactured by preparing a window plate (2) and a pre-shaped frame body (3) which comprises a main portion (5) and a surface layer (6) covering an outer side of the main portion. The main portion (5) of the pre-shaped frame body (3) is composed of a thermoplastic synthetic resin material having a relatively high dielectric loss and containing a heat foamable agent therein. The surface layer (6) is composed of a non-foamable thermoplastic synthetic resin material. The pre-shaped frame body (3) is subjected to a dielectric heating in a mold, to cause the foamable agent in the main portion of the pre-shaped frame body to expand in the mold cavity. The resultant frame member (3) of the window comprises a main portion (5) composed essentially of a foamed thermoplastic synthetic resin material, which is covered on its outer side by a surface layer (6) composed essentially of a non-foamed thermoplastic synthetic resin material.