Thin reinforced product and tire comprising said product

1. A tire comprising:

a crown surmounted by a tread,

two sidewalls,

two beads, each sidewall connecting each bead to the crown,

a carcass reinforcement anchored in each of the beads and extending through the sidewalls as far as the crown, and

a crown reinforcement interposed radially between the carcass reinforcement and the tread,

wherein the tire is a passenger vehicle tire, and

wherein the crown reinforcement is a reinforced product comprising:

an elastomer matrix,

several reinforcing elements embedded in the elastomer matrix, the reinforcing elements being arranged side by side in a main direction, each reinforcing element comprising:

at least one filamentary element, and

at least one sheath coating each filamentary element and comprising at least one layer of a thermoplastic polymer composition,

wherein a mean thickness E of the reinforced product is less than or equal to 0.95 mm;

wherein a pitch P at which the reinforcing elements are laid in the main direction is less than or equal to 1.1 mm;

wherein the ratio R1=ODO/E of the mean minimum thickness ODO of elastomer present on the sheath to the mean thickness E of the reinforced product is less than or equal to 0.17, the mean minimum thickness of elastomer ODO and mean thickness E of the reinforced product being measured in a direction substantially perpendicular to the main direction;

wherein the ratio R2=B/E of the mean minimum thickness B of elastomer separating two successive reinforcing elements in the main direction to the mean thickness E of the reinforced product is less than or equal to 0.3;

wherein each filamentary element has a mean bulk D in the direction substantially perpendicular to the main direction, and wherein the ratio R3=D/E of the mean bulk D to the mean thickness E of the reinforced product is less than or equal to 0.6.

2. The tire according to claim 1 , wherein the ratio R1 is less than or equal to 0.15.

3. The tire according to claim 1 , wherein the ratio R1 is less than or equal to 0.10.

4. The tire according to claim 1 , wherein the ratio R1 is less than or equal to 0.07.

5. The tire according to claim 1 , wherein the mean minimum thickness ODO is less than or equal to 0.17 mm.

6. The tire according to claim 1 , wherein the mean minimum thickness ODO is less than or equal to 0.11 mm.

7. The tire according to claim 1 , wherein the mean thickness G of the sheath on each filamentary element in the direction substantially perpendicular to the main direction ranges from 1 μm to 2 mm.

8. The tire according to claim 1 , wherein the mean thickness G of the sheath on each filamentary element in the direction substantially perpendicular to the main direction ranges from 35 μm to 200 μm.

9. The tire according to claim 1 , wherein each reinforcing element comprises a single filamentary element.

10. The tire according to claim 1 , wherein each filamentary element comprises at least one multifilament strand comprising several elementary monofilaments.

11. The tire according to claim 10 , wherein each filamentary element comprises a single multifilament strand.

12. The tire according to claim 11 , wherein each elementary monofilament is metallic.

13. The tire according to claim 10 , wherein each elementary monofilament is metallic.

14. The tire according to claim 10 , wherein each elementary monofilament has a diameter ranging from 0.10 mm to 0.35 mm.

15. The tire according to claim 1 , wherein the thermoplastic polymer composition comprises a thermoplastic polymer, a functionalized diene elastomer, a poly(p-phenylene ether) or a mixture of these materials.

16. The tire according to claim 1 , wherein the at least one sheath is coated with a layer of an adhesive providing adhesion between the at least one sheath and the elastomer matrix.