Rubber articles with improved fire properties
AssigneeBridgestone Americas Tire Operations, LLC
InventorsMichael C. Howard, Brandon C. Adcock, Hang Li
Life of this patent
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Abstract
Tires and tire components are provided having improved fire properties, as well as the vulcanizable compositions for making the tires and tire components. A vulcanizable composition is provided that includes at least one vulcanizable polymer, a curative, a halogenated hydrocarbon, and expandable graphite. The tires and tire components have improved properties including one or more of improved flame retardancy, reduced smoke density and/or toxicity, and reduced heat release.
Claims20
A tire component prepared by a process comprising the steps of:
- (i) preparing a vulcanizable composition that includes at least one vulcanizable polymer, a curative, at least one halogenated hydrocarbon wax, and expandable graphite;
- (ii) fabricating an uncured tire component comprising at least one layer that is formed from said vulcanizable composition;
- and
- (iii) at least partially curing the uncured tire component.
A tire comprising the vulcanizate of a vulcanizable composition that includes:
- (i) a rubber that includes at least one vulcanizable polymer,
- (ii) a curative,
- (iii) a halogenated hydrocarbon wax, and
- (iv) expandable graphite.
A method for preparing a tire component, the method comprising the steps of:
- (i) preparing a vulcanizable composition that includes at least one vulcanizable polymer, a curative, at least one halogenated hydrocarbon wax, and expandable graphite;
- (ii) fabricating an uncured tire component comprising at least one layer that is formed from said vulcanizable composition;
- and
- (iii) at least partially curing the uncured tire component.
Dependencies are inferred from the claim text.