Patent ID: 6191248
Filing Date: 2001-02-20
Classification: B82Y,C01P,C09C,Y10T

Abstract:
A coating formulation adapted to cure to a durable and tough polyurea, free of hydrocarbon unsaturation, comprising a two-component binder having:(a) an alicyclic polyurea polyketimine having appreciable molecular weight to provide toughness and durability to the coating and at least four ketimine functionalities;(b) an alicyclic isocyanate in substantially stoichiometric proportions with the polyketimine; and(c) about 1-50 wt % of a pigment to provide the desired color, gloss, or reflectivity, the pigment including an effective amount of metal flakes to provide opacity with minimum edge effects (i.e., scattering).