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Method of preventing corrosion of metals using silanes

  • US 5,750,197 A
  • Filed: 01/09/1997
  • Issued: 05/12/1998
  • Est. Priority Date: 01/09/1997
  • Status: Expired due to Term
First Claim
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1. A method of treating a metal substrate to improve corrosion resistance, comprising the steps of:

  • (a) providing a metal substrate; and

    (b) applying a coating of a first treatment solution directly onto the surface of said metal, said first treatment solution consisting essentially of at least one multi-functional silane having at least two trisubstituted silyl groups wherein the substituents are individually chosen from the group consisting of alkoxy and acetoxy, wherein said multi-functional silane has been at least partially hydrolyzed, and wherein said first treatment solution has a pH of less than about 7.

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