James Anderson Schlademan - Stow OH Lawson Gibson Wideman - Hudson OH Edward John Blok - Wadsworth OH Paul Harry Sandstrom - Tallmadge OH Angelo Bergomi - Akron OH Mark Leslie Kralevich - Copley OH
Assignee:
The Goodyear Tire & Rubber Company - Akron OH
International Classification:
C08K 334 B60C 2310
US Classification:
524492
Abstract:
The present application relates to a pneumatic tire having a tread comprised of (a) a diene-based elastomer containing olefinic unsaturation and (b) from 1 to 50 phr of polymeric resinous material comprising from about 4 to about 60 weight percent units derived from piperylene, from about 10 to about 35 weight percent units derived from 2-methyl-2-butene and from about 18 to about 50 weight percent units derived from dicyclopentadiene.
Acrylic Hot Melt Pressure Sensitive Adhesive Compounds
Acrylic pressure sensitive hot melt adhesives having improved creep resistance at ambient temperatures and desirable melt viscosity at elevated application temperatures are prepared by copolymerizing suitable acrylic and methacrylic acids and alkyl esters with 10-40 percent by weight of an acrylate or methacrylate terminated vinyl aromatic monomer based macromolecular monomer. Compounding these adhesives with suitable tackifiers and plasticizers produces adhesives having low molten viscosity and significantly better shear adhesion, tack, and peel adhesion than is possible with the uncompounded acrylic adhesives.