Surface treating of polyphenylene ether thermoplastic shaped articles.

摘要

A composition is prepared of, by wt, (I) 100 parts of a mixture of 5 to 100% of a polyphenylene ether or a mixture thereof with a styrene polyester, or a graft copolymer thereof and styrene and (b) 95 to 0% of a thermoplastic polyamide and/or saturated polyester resin; and optionally (II) 0 to 50 parts of a rubbery substance; (III) 0 to 50 parts of inorganic filler and/or glass fibers; and (IV) 0 to 10 parts of at least one of seven types of compatibilizer which improves compatibility of the polymers (I) (a) and (b). The production of these components is described. The components are mixed in any order and molded. The surface of the molded article, e.g. a film, plate or fibers, may be degreased and is irradiated with ultraviolet light of wavelength less than 300 nm, preferably 185 and 254 nm as main wavelengths, for 20 seconds to 10 minutes: The irradiation improves the coatability of the surface, which may then be coated with a coating of an alkyd-melamine or an acrylic urethane.