US 11,591,454 B2 · Pneumatic tire

Abstract

The present invention is directed to a pneumatic tire having a tread comprising a vulcanizable rubber composition comprising, based on 100 parts by weight of elastomer (phr), up to 100 phr of a solution polymerized styrene-butadiene rubber; from 5 to 50 phr of a fatty acid monoester of formula 1 where R1 is selected from C1 to C8 linear or branched alkyl, C1 to C8 linear or branched alkenyl, and C2 to C6 linear or branched alkyl substituted with from one to five hydroxyl groups; R2 is C11 to C21 alkyl or C11 to C21 alkenyl; from 5 to 50 phr of a hydrocarbon resin having a Tg ranging from −40° C. to 20° C.; less than 10 phr of a petroleum-derived oil; and from 50 to 130 phr of silica. optionally, from about 1 to 50 phr carbon black.

Claims17

Dependent claims

A pneumatic tire having a tread comprising a vulcanizable rubber composition comprising, based on 100 parts by weight of elastomer (phr),

up to 100 phr of a solution polymerized styrene-butadiene rubber;
from 5 to 15 phr of a fatty acid monoester of formula 1
where R1 is selected from C1 to C8 linear or branched alkyl, C1 to C8 linear or branched alkenyl, and C2 to C6 linear or branched alkyl substituted with from one to five hydroxyl groups;
R2 is C11 to C21 alkyl or C11 to C21 alkenyl;
from 5 to 50 phr of a hydrocarbon resin having a Tg ranging from −40° C. to 20° C.;
less than 10 phr of a petroleum-derived oil;
from 50 to 130 phr of silica;
and
optionally, from about 1 to 50 phr carbon black;
wherein the rubber composition is devoid of traction resins greater than 20° C.

7 more elements

Dependencies are inferred from the claim text.

Pneumatic tire

Life of this patent

Pneumatic tire

Life of this patent

Abstract

Claims17