Method for improving adhesion to metal
AssigneeMinnesota Mining and Manufacturing Company
InventorScott R. Culler
Life of this patent
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Abstract
A method of applying a layer of exogenous inorganic oxide to a metal article which method involves heating a coating of a coupling agent for a temperature and for a time sufficient to convert the coating to a layer of exogenous inorganic oxide. Also a method of adhering a metal article to an adhesive and/or a composite and a method of adhering a metal article to a substrate.
Claims14
A method for applying a layer of exogenous inorganic oxide to the surface of a metal article, which method comprises the steps of:
- (a) coating at least a portion of the surface of the metal article with an organosilicon compound that is capable on heating of forming silica;
- and
- (b) heating the coated surface at a temperature and for a time sufficient to convert the coating to a layer of silica.
A method for adhering a metal article to an adhesive and/or a composite, which method comprises the steps of:
- (a) coating at least a portion of the surface of the article with an organosilicon compound that is capable on heating of forming silica;
- (b) heating the coated surface at a temperature and for a time sufficient to convert the coating to a layer of silica;
- and
- (c) adhering the metal article at said layer of silica to the adhesive and/or composite.
A method for adhering a metal article to a substrate by way of an intermediate layer of adhesive, which method comprises the steps of:
- (a) coating at least a portion of the surface of the article with an organosilicon compound that is capable on heating of forming exogenous inorganic oxide;
- (b) heating the coated surface at a temperature and for a time sufficient to convert the coating to a layer of silica;
- (c) adhering the article at said layer of silica to an intermediate layer of adhesive composite;
- and
- (d) adhering the substrate to the metal article by way of the intermediate layer.
Dependencies are inferred from the claim text.