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US 6,292,995 B1Granted
Powder coating as substrate for epoxy bonding of vibration isolation mounts
AssigneeBridgestone Corporation
InventorsDouglas C. Corbin, David G. Siciliano
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Abstract
A method of producing a vibration isolation mount assembly comprising at least one metal bracket member bonded to a volume of a resilient elastomeric material. The bonding of the elastomeric material to the metal bracket is improved by electrostatically spraying the metal brackets with an epoxy coating prior to adhering the rubber to the metal bracket members, but after vulcanization of the rubber material.
Claims8
A method for bonding a vulcanized rubber surface to a metal substrate, comprising the steps of:
- (a) electrostatically spraying epoxy-containing powder on to a surface of the metal substrate;
- (b) curing the epoxy-containing powder on the metal substrate to form an epoxy coating on the metal surface;
- ( c ) providing an amount of previously vulcanized rubber having a surface;
- (d) applying a two part epoxy adhesive at an interface between the previously vulcanized rubber surface and the epoxy coating on the metal surface wherein said two-part epoxy adhesive comprises a first part which is applied to the previously vulcanized rubber surface and a second part which is applied to the epoxy coating on the metal surface;
- and
- (e) curing under pressure the two-part epoxy adhesive at the interface to form a bond among the previously vulcanized rubber surface, the two-part epoxy adhesive and the epoxy coating on the metal surface.
3 more elements
Dependencies are inferred from the claim text.