Protective coating system for imparting resistance to abrasion,

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4284242.461, 4284244, 4284258, B32B 702, B32B 2700

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active

051147831

ABSTRACT:
This invention relates to a coating system which forms a highly abrasion resistant, chemical resistant, impact resistant protective finish for a substrate. The coating system is based upon using two coatings of different characteristics but having excellent adhesion to one another. The outermost or surface coating layer is a highly crosslinked hard polymer, which is adhered to an underlying base coating layer of a campatible softer polymer. The outer hard polymer preferably comprises a highly crosslinked acrylic polymer, while the underlying softer polymer preferably comprises a crosslinked urethane polymer.

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