Protective coating system for imparting resistance to abrasion,

Details Protective coating system for imparting resistance to abrasion, Protective coating system for imparting resistance to abrasion,

1991-12-27

1993-10-19

Lesmes, George F.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

4284242, 428461, 4284244, 4284258, 4289088, B32B 702, B32B 2700

Patent

active

052543951

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 compatible softer polymer. The outer hard polymer preferably comprises a highly crosslinked acrylic copolymer derived from at least 40 percent by weight of a multifunctional aliphatic acrylate monomer of three or more functional groups, while the underlying softer polymer preferably comprises a crosslinked aliphatic urethane acrylate copolymer and the multifunctional aliphatic acrylate monomer of three or more functional groups.

REFERENCES:
patent: 4273802 (1981-01-01), Kamada et al.
patent: 4501767 (1985-02-01), Iimure
patent: 4557980 (1985-12-01), Hodnett, III
patent: 4830909 (1989-05-01), Cohen et al.
patent: 5114783 (1992-05-01), Hodnett, III

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