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Layer of reaction product of epoxy and phosphorus materials and curing agent on substrate

  • US 7,476,444 B2
  • Filed: 09/15/2006
  • Issued: 01/13/2009
  • Est. Priority Date: 11/06/2002
  • Status: Expired due to Term
First Claim
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1. A weldable, corrosion resistant layer deposited on a substrate, wherein the weldable layer has a thickness of from 0.1 micron to 1.0 micron, is substantially free of conductive pigments, and is comprised of the cured reaction product of:

  • a) the reaction product of at least one epoxy-functional material and at least one phosphorus-containing material, wherein the equivalent ratio of the phosphorous-containing material to epoxy-containing material is within the range of 1.6;

    1 and 5;

    1; and

    b) a curing agent.

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