Tire innerliner
AssigneeBridgestone Americas Tire Operations, LLC
InventorsJames D. Ulmer, Robert Gibbons Barned, Lisa Marie Dinger, Joseph Lanzarotta
Life of this patent
Estimating the term…
Abstract
A method of preparing a green tire innerliner, the method comprising mixing one or more vulcanizable rubbery polymers, less than 0.75 parts by weight zinc oxide, less than 0.75 parts by weight magnesium oxide, and less than 0.75 parts by weight sulfur, per 100 parts by weight rubber, to form a vulcanizable mixture and extruding the mixture to form a green tire innerliner.
Claims8
A tire comprising an innerliner, where the innerliner includes a rubber composition that is at least partially cured, and where the rubber composition is characterized by a swollen polymer volume fraction (Vr) of from 0.063 to less than 0.15, where the rubber composition comprises the vulcanizate of a rubbery polymer composition, where the rubbery polymer composition includes sulfur, magnesium oxide, and zinc oxide, and where the rubbery polymer composition comprises less than 0.75 parts by weight zinc oxide, per 100 parts by weight rubber, less than 0.75 parts by weight magnesium oxide, per 100 parts by weight rubber, and less than 0.75 parts by weight sulfur, per 100 parts by weight rubber, and where the total weight of the sulfur, zinc oxide, and magnesium oxide is less than 1.2 parts by weight per 100 parts by weight rubber.
Dependencies are inferred from the claim text.