US 6,265,478 B1Granted

Polymeric resinous material derived from limonene dicyclopentadiene indene and alpha-methyl styrene

AssigneeThe Goodyear Tire & Rubber Company

InventorsMark Leslie Kralevich, Jr., Edward John Blok, Lawson Gibson Wideman, Paul Harry Sandstrom

Life of this patent

Estimating the term…

Loading patent…

Abstract

The present application relates to polymeric resinous material comprising (1) from 5 to 70 weight percent units derived from limonene; (2) from 5 to 70 weight percent units derived from dicyclopentadiene; (3) from 5 to 45 weight percent units derived from indene; and (4) from 5 to 45 weight percent units derived from alpha-methyl styrene; wherein the sum of the weight percent units derived from limonene and dicyclopentadiene range from 40 to 75 weight percent units of the resin and the sum of the weight percent units derived from indene and alpha-methyl styrene range from 25 to 60 weight percent units of the resin.

Claims13

Dependent claims

A pneumatic tire having a tread comprised of (a) a diene-based elastomer containing olefinic unsaturation and (b) 1 to 80 phr of a polymeric resinous material comprising

(1) from 5 to 70 weight percent units derived from limonene;
(2) from 5 to 70 weight percent units derived from dicyclopentadiene;
(3) from 5 to 45 weight percent units derived from indene;
and
(4) from 5 to 45 weight percent units derived from alpha-methyl styrene;
wherein the sum of the weight percent units derived from limonene and dicyclopentadiene range from 40 to 75 weight percent units of the resin and the sum of the weight percent units derived from indene and alpha-methyl styrene range from 25 to 60 weight percent units of the resin.

3 more elements

Dependencies are inferred from the claim text.