From Hydrocarbon Having At Least Six Carbon Atoms Patents (Class 526/340.3)
  • Polymeric dicyclopentadiene/limonene resin
    Publication number: 20010016636
    Abstract: This invention relates to a novel class of polymeric resins which have a softening point ranging from about 50° C. to about 220° C. and a molecular weight ranging from about 500 to about 42,000. The resins consist essentially of the polymers which result from the polymerization reaction between dicyclopentadiene and limonene. The polymeric resins are particularly useful in improving traction of the rubber when used in tire treads.
    Type: Application
    Filed: April 17, 2001
    Publication date: August 23, 2001
    Applicant: The Goodyear Tire & Rubber Company
    Inventors: Lawson Gibson Wideman, Thomas Joseph Segatta, Denise Jeannette Keith
  • Polymeric dicyclopentadiene/limonene resin
    Patent number: 6245873
    Abstract: This invention relates to a novel class of polymeric resins which have a softening point ranging from about 50° C. to about 220° C. and a molecular weight ranging from about 500 to about 42,000. The resins consist essentially of the polymers which result from the polymerization reaction between dicyclopentadiene and limonene. The polymeric resins are particularly useful in improving traction of the rubber when used in tire treads.
    Type: Grant
    Filed: February 9, 1999
    Date of Patent: June 12, 2001
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Lawson Gibson Wideman, Thomas Joseph Segatta, Denise Jeannette Keith
  • Polymerization of dicyclopentadiene
    Patent number: 6235856
    Abstract: Composition of (a) dicyclopentadiene, by itself or in a mixture with a strained cycloolefin, and (b) a catalytic amount of at least one carbene-free, divalent-cationic ruthenium or osmium compound as a single-component catalyst, which contains at least one phosphine group and a total of 2 to 5 ligands bonded to the metal atom, and which contains acid anions for charge balancing. The compositions can be polymerized by means of heat (metathesis polymerization) and are suitable for the production of shaped articles and coatings.
    Type: Grant
    Filed: June 19, 1997
    Date of Patent: May 22, 2001
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Andreas Hafner, Paul Adriaan Van Der Schaaf, Andreas Mühlebach