Rubber composition with precipitated silica partially pre-hydrophobated with alkylsilane coupled to an elastomer in situ within the rubber composition and tire with component
AssigneeThe Goodyear Tire & Rubber Company
InventorsBruce Raymond Hahn, George Jim Papakonstantopoulos
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Abstract
The invention relates to a rubber composition containing diene based elastomer(s) coupled with a silica coupler in situ in the rubber composition to a precipitated silica which is partially pre-hydrophobated with an alkylsilane, its preparation and to a tire containing a component comprised of such rubber composition.
Claims1
A method wherein a partially pre-hydrophobated precipitated silica is provided by reaction of an alkylsilane comprised of trichlorooctylsilane or trichlorooctadecylsilane with a portion of hydroxyl groups on a precipitated silica to thereby provide a partially pre-hydrophobated precipitated silica containing residual hydroxyl groups and blending said partially pre-hydrophobated precipitated silica with a rubber composition containing at least one conjugated diene based elastomer to provide a dispersion thereof in said rubber composition.
Dependencies are inferred from the claim text.