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Method of treating the surface of a molded article comprising liquid crystal polyester resin

  • US 4,950,360 A
  • Filed: 09/27/1988
  • Issued: 08/21/1990
  • Est. Priority Date: 10/09/1987
  • Status: Expired due to Term
First Claim
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1. A method of treating the surface of a molded article comprising a liquid crystal polyester resin composition, said composition being composed of a melt-processable polyester capable of forming an anisotropic melt phase and at least one inorganic filler selected from the group consisting of the Group II elements of the periodic table and oxides, sulfates, phosphates, silicates, and carbonates thereof, and elements of aluminum, silicon, tin, lead, antimony, and bismuth and oxides thereof incorporated therein in an amount of 5 to 80% by weight based on the total amount of said molded article composition the method comprising bringing into contact said molded article with an acidic solution containing at least 80% by weight of sulfuric acid for treatment of said molded article.

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