Tire innerliner
AssigneeBridgestone Americas Tire Operations, LLC
InventorsJames D. Ulmer, Robert Gibbons Barned, Lisa Marie Dinger, Joseph Lanzarotta
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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.
Claims16
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.
A method of preparing a green tire innerliner, the method comprising:
- mixing a rubber including a halogenated rubber with a cure system including one or more curatives selected from the group consisting of sulfur, magnesium oxide, and zinc oxide to form a vulcanizable mixture, where the molar ratio of the total sulfur plus magnesium oxide plus zinc oxide to the moles of crosslinkable pairs on the halogenated rubber is at least 0.05:1 up to 1.8:1;
- and
- extruding the mixture to form a green tire innerliner.
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 less than 0.15.
Dependencies are inferred from the claim text.