Corrosion-responsive coating formulations for protection of metal surfaces
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United States of America Patent
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Oct 13, 2009
Grant Date -
Nov 6, 2008
app pub date -
Jul 8, 2008
filing date -
Jun 4, 2002
priority date (Note) -
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Abstract
Methods and compositions are described for protecting a metal surface against corrosion. The method involves applying to the metal surface a coating formulation that comprises a radiation curable resin and a corrosion-responsive agent that is capable of releasing a corrosion-inhibiting ion in response to exposure to ionic species characteristic of those present on a metal surface undergoing oxidative corrosion; and exposing the coating formulation to radiation whereby the radiation curable resin forms a corrosion-resisting coating having a low spontaneous release rate of the corrosion-responsive agent into the environment.
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