Elastomeric sealant composition

Details Elastomeric sealant composition Elastomeric sealant composition

1975-07-14

1978-09-12

Lieberman, Paul

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260829, 260888, C08L 5300, C08L 4500, C08L 2322

Patent

active

041137990

ABSTRACT:
A carbon reinforced, partially cross-linked butyl rubber matrix sealant composition as described is particularly suitable for use as a self-healing tire puncture sealant. The sealant composition comprises a high average molecular weight butyl rubber and a low average molecular weight butyl rubber in a ratio of high to low molecular weight butyl rubber of between about 20/80 to 60/40, in admixture with a tackifier present in an amount between about 55 and 70 weight % of the composition. A partially hydrogenated block copolymer may be included in the admixture.

REFERENCES:
patent: 3880953 (1975-04-01), Downey
patent: 3935893 (1976-02-01), Strang
patent: 3950280 (1976-04-01), Singleton
patent: 3954692 (1976-05-01), Downey

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