Pneumatic tire with barrier layer and method of making the same
First Claim
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1. A tire comprising:
- a tire tread;
a tire layer circumferentially disposed inwardly of the tire tread and including a first end and a second end situated adjacent each other to define a butt joint; and
a barrier layer circumferentially disposed inwardly of the tire tread and situated adjacent the tire layer, the barrier layer including a first end and a second end, a portion of the first end of the barrier layer overlaps the second end by about 1.5 cm or more to define a lap joint, and wherein the first end of the barrier layer is received between and extends beyond the butt joint so that the first end of the tire layer is sandwiched between the lap joint.
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Abstract
A pneumatic tire and a method of making a tire are provided. The tire includes a tire tread, a tire layer, and a barrier layer. The tire layer is circumferentially disposed inwardly of the tire tread and includes a first end and a second end situated adjacent each other to define a butt joint. The barrier layer includes a first end and a second end, a portion of the first end of the barrier layer overlaps the second end by about 1.5 cm or more to define a lap joint, and where the first end of the barrier layer is received between and extends beyond the butt joint such that the first end of the tire layer is sandwiched between the lap joint.
145 Citations
20 Claims
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1. A tire comprising:
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a tire tread; a tire layer circumferentially disposed inwardly of the tire tread and including a first end and a second end situated adjacent each other to define a butt joint; and a barrier layer circumferentially disposed inwardly of the tire tread and situated adjacent the tire layer, the barrier layer including a first end and a second end, a portion of the first end of the barrier layer overlaps the second end by about 1.5 cm or more to define a lap joint, and wherein the first end of the barrier layer is received between and extends beyond the butt joint so that the first end of the tire layer is sandwiched between the lap joint. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A tire comprising:
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a tire tread; a tire layer circumferentially disposed inwardly of the tire tread and including a first end and a second end situated adjacent each other to define a butt joint; and a barrier layer circumferentially disposed inwardly of the tire tread and situated adjacent the tire layer, the barrier layer including an undrawn polymeric film that is coated on at least one surface with an adhesive material, the undrawn polymeric film comprising 60 to 90 weight percent of a thermoplastic resin and 10 to 40 weight percent of an elastomer, and having a film thickness from about 25 microns to about 200 microns, wherein the barrier layer further includes a first end and a second end, a portion of the first end of the barrier layer overlaps the second end by about 1.5 cm or more to define a lap joint, and wherein the first end of the barrier layer is received between and extends beyond the butt joint so that the first end of the tire layer is sandwiched between the lap joint. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. A method of making a tire comprising:
building a green tire assembly, wherein the assembly includes a tire tread; a tire layer circumferentially disposed inwardly of the tire tread and including a first end and a second end situated adjacent each other to define a butt joint; and a barrier layer circumferentially disposed inwardly of the tire tread and situated adjacent the tire layer, barrier layer including a first end and a second end, the first end of the barrier layer overlaps the second end by about 1.5 cm or more to define a lap joint, and wherein the first end of the barrier layer is received between and extends beyond the butt joint so that the first end of the tire layer is sandwiched between the lap joint.
Specification