Modified rubber compositions containing aromatic six-...

Details Modified rubber compositions containing aromatic six-... Modified rubber compositions containing aromatic six-...

C - Chemistry, Metallurgy

08

C

400/1116, 6/121,

C08C 19/30 (2006.01) B60C 1/00 (2006.01) C08C 19/42 (2006.01)

Patent

CA 1257049

Title: MODIFIED RUBBER COMPOSITIONS CONTAINING AROMATIC SIX-MEMBERED HETEROCYCLIC NITROGEN-CONTAINING GROUPS ABSTRACT OF THE DISCLOSURE Modified rubber compositions are described which when cured exhibit high rebound and reduced hysteresis. The uncured rubber compositions are prepared by reacting (a) at least one polymer rubber containing an alkali metal and carbon-carbon unsaturation with (b) at least one aromatic six-membered heterocyclic nitrogen- containing compound substituted with a group capable of reacting with the alkali metal of the polymer rubber. Filled vulcanizates made by vulcanizing a composition comprising at least one of the above-described uncured modified rubber compositions and one or more reinforcing fillers also are described. When tire treads are prepared utilizing the filled vulcanizates of the present invention, the tires exhibit improved properties such as reduced running temperature and rolling resistance.

487358

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