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US 4,374,694 AGranted
Method for bonding elastomers to metals
AssigneeLord Corporation
InventorsDonald R. Blenner, Herman V. Boenig
Life of this patent
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Abstract
Environmental resistance of rubber-metal bonded assemblies is significantly improved by a process comprising treating such substrates in a "low temperature" plasma comprising at least one 1,2-oxirane reactive monomer.
Claims8
A method for bonding vulcanizable natural and synthetic rubbers to metal substrates comprising
- (a) exposing at least one metal element to a glow discharge plasma consisting essentially of a gaseous oxirane reactive monomer;
- (b) applying to at least one plasma-exposed surface of said metal element an adhesive composition suitable for bonding natural and synthetic rubber to metal;
- (c) contacting said adhesively-coated metal element with a vulcanizable rubber composition;
- and
- (d) subjecting the resultant assembly to conditions sufficient to vulcanize said rubber and cure said adhesive.
2 more elements
Dependencies are inferred from the claim text.