Epoxy primers for polyurethane structural adhesives

Details Epoxy primers for polyurethane structural adhesives Epoxy primers for polyurethane structural adhesives

1986-11-13

1988-06-14

Lusignan, Michael R.

Coating processes

Electrical product produced

Welding electrode

4272071, 4272088, 428414, 4284231, B05D 306, B05D 510, B32B 2738, B32B 2740

Patent

active

047511036

ABSTRACT:
A process for forming an improved bond between surfaces of sheet molding compound (SMC) and polyurethane adhesives comprising priming the surface with a liquid epoxy resin which is 100% active wherein the epoxy resin contains at least one ultraviolet light activated cure accelerator, exposing the primed surface to ultraviolet radiation so as to cause curing of the primer, then applying the polyurethane adhesive to the primed, cured surface and curing the polyurethane adhesive.

REFERENCES:
patent: 3068117 (1962-12-01), Korpman
patent: 4073998 (1978-02-01), O'Connor
patent: 4218279 (1980-08-01), Green
patent: 4246298 (1981-01-01), Guarnery et al.
patent: 4289595 (1981-09-01), Tortorello
patent: 4307140 (1981-12-01), Davis
patent: 4318766 (1982-03-01), Smith
patent: 4378277 (1983-03-01), Smith
patent: 4394403 (1983-07-01), Smith
patent: 4504374 (1985-03-01), Lewarchik et al.
patent: 4595445 (1986-01-01), Hombach et al.
patent: 4657779 (1987-04-01), Gaske

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