Process for improving the adhesion of polymeric materials to met

Details Process for improving the adhesion of polymeric materials to met Process for improving the adhesion of polymeric materials to met

1999-03-23

2000-12-19

Beck, Shrive

Coating processes

With pretreatment of the base

Metal base

427 98, 427333, 427337, B05D 300

Patent

active

061625035

ABSTRACT:
A process is described for treating metal surfaces with a composition comprising an oxidizer, an acid, a corrosion inhibitor, a benzotriazole with an electron withdrawing group in the 1-position which electron withdrawing group is a stronger electron withdrawer than a hydrogen group, and optionally, a source of adhesion enhancing species selected from the group consisting of molybdates, tungstates, tantalates, niobates, vanadates, isopoly or heteropoly acids of molybdenum, tungsten, tantalum, niobium, vanadium, and combinations of any of the foregoing in order to increase the adhesion of polymeric materials to the metal surface.

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