(under the class definition) Processes wherein the escape of a volatile component of a molded article composition through the surface of the article is prevented, minimized or slowed by the application of a relatively impermeable layer to said surface.
SEE OR SEARCH THIS CLASS, SUBCLASS:
129+, for processes including the step of coating the formed article which coating may act inherently to perform various functions.
SEE OR SEARCH CLASS
156, Adhesive Bonding and Miscellaneous Chemical Manufacture,
90, for use of a barrier layer to prevent migration or bleeding between laminae.