Copper coat strengthens ferrous metal bond to rubber

Details Copper coat strengthens ferrous metal bond to rubber Copper coat strengthens ferrous metal bond to rubber

B - Operations, Transporting

32

B

154/92

B32B 15/06 (2006.01) B32B 31/12 (1980.01)

Patent

CA 1075581

ABSTRACT OF THE DISCLOSURE The bond strength of composite articles of rubber adhered to ferrous metal substrates through an adhesive is sub- stantially improved at ambient and elevated temperatures by depositing a loosely adhered layer of copper on the ferrous metal substrate, applying an adhesive thereover comprising an interpolymer containing about 50 to about 99% by weight of a conjugated diene, about 1-45% by weight of a vinyl substituted heterocyclic base and 0 to about 40% by weight of at least one additional copolymerizable monomer, and thereafter contacting the adhesive with the rubber to be bonded and bonding by heat and pressure,

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