| abstract |
This invention relates to a novel class of polymericnresins which have a softening point ranging from 50°C ton220°C and a molecular weight ranging from 500 to 42,000.nThe resins comprise the polymers which result from thenpolymerization reaction between dimethyl dicyclopentadienenand limonene. The polymeric resins are particularly usefulnin improving traction of the rubber when used in tirentreads. |