Patent ID: 8987352
Filing Date: 2015-03-24
Classification: C08G,C08K,C08L,C09D,Y10S

Abstract:
1. A self healing polymer coating comprising: a) polyurethane thermoset resin; b) polycaprolactone (PCL) thermoplastic present as sub-micron generally spherical particles formed in situ by phase separation via reaction and dispersed in a matrix of the thermoset resin; and c) the thermoplastic and thermoset forming a transparent structure wherein the thermoset is a load-bearing phase performing major mechanical and structural functions and wherein the thermoplastic serves as a self-healing phase to repair cracks and other damages in the material to restore its mechanical and structural integrity after damage, wherein the polyurethane comprises 80-90 wt. % and the PCL is 10 to 20 wt. %.