AROMATIC POLYMER MOLDED ARTICLE WITH MODIFIED SURFACE CONDITION AND PROCESS FOR PRODUCING THE SAME

摘要

PCT No. PCT/JP88/01252 Sec. 371 Date Jan. 7, 1991 Sec. 102(e) Date Jan. 7, 1991 PCT Filed Dec. 10, 1988 PCT Pub. No. WO89/05330 PCT Pub. Date Jun. 15, 1989.The present invention lies in a process for modifying the surface of a molded article, which process comprises irradiating the surface of a molded article composed of an aromatic polymer or a polymer composition containing said aromatic polymer, with an ultraviolet laser beam having a wavelength of about 150 nm-380 nm at a fluence at least lower than the threshold to modify the surface as compared with the condition before the irradiation. The process makes it possible to modify the condition of the laser beam-irradiated surface portions of the molded article to, for example, a white color or black color, whereby the molded article can be endowed with functions and properties required in its use in various applications.