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US 2017/0361655 A1Published application
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 inner liner comprising:
- providing a cured inner liner having an upper and a lower surface wherein the inner liner comprises rubber a majority by weight of which comprises butyl rubber (optionally halogenated) and the lower surface further comprises polysiloxane moieties, and
- treating the lower surface of the cured inner liner to convert at least a portion of the polysiloxane moieties to silanol moieties, thereby producing a treated, cured inner liner.
A method for treating the surface of a cured inner liner comprising:
- providing a cured inner liner having an upper and a lower surface wherein the inner liner comprises rubber a majority by weight of which comprises butyl rubber (optionally halogenated) and the lower surface further comprises polysiloxane moieties, and
- treating the lower surface of the cured inner liner to increase its hydrophilicity by oxidizing at least a portion of the polysiloxane moieties, thereby producing a treated, cured inner liner.
A cured tire comprising:
- a treated, cured inner liner comprising rubber a majority by weight of which comprises butyl rubber (optionally halogenated) and having an upper and a lower surface wherein the lower surface is radially inward facing and further comprises silicon atoms within silanol moieties,
- at least one component radially inner of the inner liner,
- optionally an adhesive layer between the lower surface of the inner liner and the at least one radially inner component.
Dependencies are inferred from the claim text.