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Coating compositions exhibiting corrosion resistance properties and related coated substrates

  • US 8,231,970 B2
  • Filed: 12/14/2007
  • Issued: 07/31/2012
  • Est. Priority Date: 08/26/2005
  • Status: Active Grant
First Claim
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1. A method for enhancing the corrosion resistance of a substrate comprising aluminum, the method comprising coating at least a portion of the substrate with a composition comprising:

  • (a) a thermosetting film-forming resin comprising a polyamine and an epoxy functional polymer; and

    (b) corrosion resisting particles comprising magnesium oxide articles having a surface area of at least 10 square meters per gram, wherein the magnesium oxide particles have an average particle size of no more than 50 nanometers.

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