PURPOSE: The titled molded article, prepared by forming a thin film with specific contents of silicon atoms and oxygen atoms on the surface of a molded high polymeric resin article by using a compound containing silicon atoms, and having improved antistatic properties with improved durability.
CONSTITUTION: A polymerized film is formed on the surface of a molded article 1 consisting of a high polymeric resin, e.g. polyethylene (PE), polypropylene (PP) or polystyrene (PS), by the low-temperature plasmatic treatment, etc. of a compound containing silicon atoms, e.g. various silane compounds or gasifiable low-molecular weight siloxane compound, or the compound containing the silicon atoms is applied to the surface and if necessary irradited with a ctinic rasy, etc. to form a modified thin film 2 with 1W60atm% silicon atom and 7atm% or more oxygen atom contents higher than those in the surface of the untreted molded article measured by the elementary analysis according to the electron spectroscopy and preferably ≤2μm thickness and give the amined molded article.
SHIMURA YUKIO
TSUDA KEISHIROU
UENO SUSUMU
NOMURA HIROKAZU
IMADA KIYOSHI
SHINETSU CHEM IND CO