US Patent:
20130017612, Jan 17, 2013
Inventors:
Wenyan LI - Orlando FL, US
Jerry W. BUHROW - Viera FL, US
Scott T. JOLLEY - Titusville FL, US
Luz M. CALLE - Merritt Island FL, US
Assignee:
United States of America as Represented by the Administrator of the National Aeronautics and Spac - Washington DC
International Classification:
C09K 11/06
G01N 21/00
C09K 15/04
C09K 15/10
C09K 15/12
C09K 15/22
C09K 15/30
C09K 15/28
G01N 21/76
C09K 15/06
US Classification:
436 75, 25230135, 2524081, 252388, 252396, 252395, 252392, 252390, 252391
Abstract:
Methods to produce pH-sensitive microparticles that have an active agent dispersed in a polymer matrix have certain advantages over microcapsules with an active agent encapsulated in an interior compartment/core inside of a polymer wall. The current invention relates to pH-sensitive microparticles that have a corrosion-detecting or corrosion-inhibiting active agent or active agents dispersed within a polymer matrix of the microparticles. The pH-sensitive microparticles can be used in various coating compositions on metal objects for corrosion detecting and/or inhibiting.
