Waterborne epoxy derived adhesive primers
AssigneeThe Dexter Corporation
InventorAndrew F. Teschendorf
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Abstract
An aqueous structural adhesive bonding primer composition containing a water-dispersible, modified phenoxy resin, an amine-aldehyde resin and a catalyst for reaction between the resins. The primer may contain corrosion inhibitors, including a novel chromate-free inhibitor system.
Claims17
An aqueous structural adhesive bonding primer composition containing a water-dispersible, modified phenoxy resin that has a waterborne polymeric structure and a degree of polymerization of at least 30, an amine aldehyde resin and a catalyst for reacting the epoxy resin and the amine aldehyde resin, which composition when provided as a structural adhesive primer on a solid surface that serves as an adherend for a structural adhesive, protects the adherend surface from being affected by environment, inhibits corrosion of the bonded surface during its service life and provides a compatible surface to which the adhesive can bond for longterm strength.
An aqueous structural adhesive bonding primer composition containing a water-dispersible, modified phenoxy resin and a water-dispersible corrosion inhibitor comprising a mixture of niobium oxide and cerium molybdate.
Dependencies are inferred from the claim text.