Overlay ply for a pneumatic tire
AssigneeThe Goodyear Tire & Rubber Company
InventorsMahesh Kavaturu, Walter Kevin Westgate, Mahmoud Cherif Assaad, Laurent Roger Andre Dubos, Marie Charlotte Chaidron, Plamen Kravaev
Life of this patent
Estimating the term…
Abstract
A composite cord includes at least one cellulose-fiber first yarn twisted helically about at least one second yarn. The second yarn includes at least one polyamide, polyester, or PEN. The first yarn has a first LASE and the second yarn has a second LASE. The first LASE is higher than the second LASE at a yarn elongation in a range from 0% to 10%.
Claims15
A composite cord comprising at least one cellulose-fiber first yarn twisted helically about at least one second yarn, the second yarn comprising at least one polyamide, polyester, or PEN, the first yarn having a first LASE and the second yarn having a second LASE, the first LASE being higher than the second LASE at a yarn elongation in a range from 0% to 10%.
A pneumatic tire comprising:
- a carcass ply;
- and
- a belt structure having an overlay ply disposed radially outward of the carcass ply
- in a crown portion of the tire,
- the overlay ply comprising at least one composite cord, the cord comprising one lyocell first yarn twisted helically about one nylon second yarn, the first yarn having a first modulus of elasticity and the second yarn having a second modulus of elasticity.
A pneumatic tire comprising:
- a carcass ply;
- and
- a belt structure having an overlay ply disposed radially outward of the carcass ply
- in a crown portion of the tire,
- the overlay ply comprising at least one composite cord, the cord comprising two lyocell first yarns twisted helically about one nylon second yarn, the first yarn having a first modulus of elasticity and the second yarn having a second modulus of elasticity.
Dependencies are inferred from the claim text.