Method for coating metallic surfaces with a mixture containing at least two silanes

Method for coating metallic surfaces with a mixture containing at least two silanes

  • CN 1,777,700 A
  • Filed: 02/25/2004
  • Published: 05/24/2006
  • Est. Priority Date: 02/25/2003
  • Status: Active Application
First Claim
Patent Images

1. method that is coated with a kind of waterborne compositions to the metallic surface, also optional organic solvent and other component of comprising of said composition, described composition does not contain chromium (VI) compound basically or fully, be used for further coating pre-treatment before, perhaps be used for handling, the method is characterized in that said composition comprises, except waterA) the no silicon fluoride of at least a hydrolyzable and/or partial hydrolysis at least andB) at least a hydrolyzable and/or the fluorine containing silane of partial hydrolysis at least,Wherein the silane in the said composition be water miscible or, particularly, by the hydrolysis reaction of (further) before the paint metallic surface and/or chemical reaction and become water miscible,Wherein cleaning, pickled, cleaning are crossed and/or pretreated metallic surface contacts with this waterborne compositions, and form film on the metallic surface, and this film carries out drying subsequently and optionally additionally is cured,Wherein dry the mistake also, the bed thickness of the film that has randomly also solidified is between 0.001~

  • 10 μ

    m.

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×