Tire sealant composition
AssigneesBridgestone Corporation, Bridgestone Americas Tire Operations, LLC
InventorsAmy M. Randall, Ludovica Caliano, Benjamin C. Galizio, Raffaele di Ronza, Claudia Aurisicchio, Giuseppe Pezzullo
Life of this patent
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Abstract
Disclosed herein are a sealant composition for use with tires, a tire having at least one component with at least one surface at least partially coated with the sealant composition, and related methods for applying the sealant composition to tires. The sealant composition comprises biorubber and a softener comprising at least one of plant oil or plant resin and has a non-petroleum content of at least 70% by weight.
Claims20
A method for applying a sealant composition to a tire, the method comprising
- providing a tire comprising at least one of the following components:
- a tread, one or more body or carcass plies, one or more cap plies, one or more belt plies, a sidewall, or an air barrier layer.
- applying a sealant composition to at least a portion of at least one radially inner surface of at least one of the components of the tire
- wherein the sealant composition comprises
- biorubber in an amount of about 15 to about 90 weight %, based upon the total weight of the sealant composition;
- and a softener comprising at least one of plant resin or plant oil, in an amount of about 10 to about 85 weight %, based upon the total weight of the sealant composition, and
- optionally a cure package,
- wherein the sealant composition contains at least 70 weight %, based upon the total weight of the sealant composition, non-petroleum ingredients including the biorubber, and plant resin or plant oil, and
- the sealant composition has a viscosity of 200 to 500 Pa-S at 100° C.
A method for applying a sealant composition to a tire, the method comprising
- providing a tire comprising at least one of the following components:
- a tread, one or more body or carcass plies, one or more cap plies, one or more belt plies, a sidewall, or an air barrier layer,
- applying a sealant composition to at least a portion of at least one radially inner surface of at least one of the components of the tire,
- wherein the sealant composition comprises
- biorubber in an amount of about 15 to about 80 weight %, based upon the total weight of the sealant composition;
- and a softener comprising at least one of plant resin or plant oil, in an amount of about 20 to about 85 weight %, based upon the total weight of the sealant composition, at least one filler in an amount of up to 20 weight %, based upon the total weight of the sealant composition, and a cure package,
- wherein the sealant composition contains no more than 5% by weight water, based upon the total weight of the sealant composition, and contains at least 90 weight %, based upon the total weight of the sealant composition, non-petroleum ingredients including the biorubber, and plant resin or plant oil, and
- the sealant composition has a viscosity of 200 to 500 Pa-S at 100° C.
Dependencies are inferred from the claim text.