Process for improving the adhesion of polymeric materials to metal surfaces
AssigneeMac Dermid, Incorporated
InventorDonald Ferrier
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Abstract
A process is described for treating metal surfaces with a composition comprising an oxidizer, an acid, a corrosion inhibitor, a source of holide ions and optionally a water soluble polymer in order to increase the adhesion of polymeric materials to the metal surface.
Claims20
A process for increasing the adhesion of a polymeric material to a metal surface, said process comprising:
- a). contacting the metal surface with an adhesion-promoting composition comprising an adhesion-promoting effective amount of:
- 1. an oxidizer;
- 2. an acid;
- 3. a corrosion inhibitor;
- 4. a source of halide ions;
- and
- 5. optionally, a water soluble polymer;
- and thereafter
- b). bonding the polymeric material to the metal surface.
A composition useful in treating metal surfaces prior to bonding polymeric materials to metal surfaces, said composition comprising an adhesion-promoting effective amount of:
- a. an oxidizer;
- b. an acid;
- c. a corrosion inhibitor;
- d. a source of halide ions;
- and
- e. optionally, a water soluble polymer.
A composition useful in treating metal surfaces prior to bonding polymeric materials to metal surfaces, said composition comprising:
- a. from 6 to 60 grams per liter of an oxidizer;
- b. from 5 to 360 grams per liter of an acid;
- c. from 1 to 20 grams per liter of a corrosion inhibitor;
- d. from 5 to 500 milligrams per liter of halide ions;
- and
- e. optionally, a water soluble polymer.
Dependencies are inferred from the claim text.