Patent ID: 7342057
Filing Date: 2008-03-11
Classification: C04B,C08K,C09D,Y10T

Abstract:
1. A self-healing coating applied to an aged coating containing lead for suppression of dust from said aged coating, comprising: a liquid COTS coating for application over said aged coatings; and microcapsules, having a shell defining a volume of a sphere with an outer diameter in the approximate range of 100-200 microns, said microcapsules wet mixed into said liquid COTS coating just prior to application of said self-healing coating, said volume containing at least one substance used for said suppression of dust generated from the compromise of said self-healing coating after application thereof to said aged, wherein said shell is resistant to degradation by said substance; and wherein prior to application of said self-healing coating and after addition of said microcapsules to said COTS coating for application over said aged coating, said microcapsules are resistant to short term degradation by said COTS coating, and wherein said microcapsules burst upon physical compromise of said applied and cured self-healing coating, releasing said substance to suppress said dust.