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US 4,395,506 AGranted
Addition of mineral rubber to halobutyl blends
AssigneeExxon Research & Engineering Co.
InventorsHayao Nagano, Bernard J. Costemalle
Life of this patent
Estimating the term…
Abstract
The incorporation of minor amounts of mineral rubber (blown asphalt) in compositions comprising blends of both chlorobutyl and bromobutyl rubbers results in high adhesion to natural rubber or natural rubber/polybutadiene rubber substrates.
Claims5
A rubber composition having high cured adhesion to high unsaturation rubber compounds comprising chlorobutyl and bromobutyl rubbers and up to about 20 parts by weight per 100 parts of the total amount of chlorobutyl and bromobutyl rubbers of a mineral rubber.
Dependencies are inferred from the claim text.