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US 11,207,919 B2Granted
Methods for treating inner liner surface, inner liners resulting therefrom and tires containing such inner liners
AssigneeBridgestone Americas Tire Operations, LLC
InventorsKung-Ching Liao, Joshua P. Abell, Jenny L. Sheaffer
Life of this patent
Estimating the term…
Abstract
Methods for treating the surface of a cured inner liner are disclosed. By use of these methods a treated, cured inner liner is produced which has a lower surface with increased adherability to other materials (e.g., adhesives). Treated, cured inner liners resulting from such methods as well as tires containing the treated inner liners.
Claims25
A method for treating the surface of a cured tire inner liner comprising:
- providing a cured tire inner liner having a thickness of 0.5 to 2 mm and an upper and a lower surface wherein the tire inner liner comprises rubber, a majority by weight of which comprises butyl rubber, and 10-100 phr of at least one filler comprising carbon black, clay, or silica, and the lower surface further comprises polysiloxane moieties, and
- treating the lower surface of the cured tire inner liner to convert at least a portion of the polysiloxane moieties to silanol moieties, thereby producing a treated, cured tire inner liner having a treated lower surface with at least a majority by weight of silicon atoms contained within silanol moieties.
A method for treating the surface of a cured tire inner liner comprising:
- providing a cured tire inner liner having a thickness of 0.5 to 2 mm and an upper and a lower surface wherein the inner liner comprises rubber, a majority by weight of which comprises butyl rubber, and 10-100 phr of at least one filler comprising carbon black, clay, or silica, and the lower surface further comprises polysiloxane moieties, and
- treating the lower surface of the cured tire inner liner to increase its hydrophilicity by oxidizing at least a portion of the polysiloxane moieties, thereby producing a treated, cured tire inner liner having a treated lower surface with at least a majority by weight of silicon atoms contained within silanol moieties.
Dependencies are inferred from the claim text.