Product reinforcing fabric and two-component weft yarn useful therein
AssigneeE. I. Du Pont de Nemours and Company
InventorEugene R. Barron
Life of this patent
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Abstract
A reinforcing fabric comprising a web of tire cords maintained in spaced relationship with sheath-core weft yarns having a cotton sheath about a core of spin-oriented polyester filaments. The weft yarns have a high initial modulus and a high break elongation which is substantially retained after heat aging the yarn at 450.degree. or 475.degree. F. The fabric is particularly useful as reinforcement in radial tire constructions.
Claims8
In a reinforcing fabric having a web of tire cords maintained in spaced relationship by weft yarns, an improved weft yarn comprising a cotton sheath twisted about a core of spin-oriented polyester filaments, which yarn has an initial modulus of at least 15 grams per denier and a break elongation of 100 to 150 percent when tested before heating, and which has an initial modulus of at least 15 grams per denier and a break elongation of at least 75 percent when tested after heat aging at 450.degree. F. for 2 minutes.
A yarn comprising a cotton sheath twisted about a core of spin-oriented polyester filaments, which yarn has an initial modulus of at least 15 grams per denier and a break elongation of 100 to 150 percent when tested before heating, and which has an initial modulus of at least 15 grams per denier and a break elongation of at least 75 percent when tested after heat aging at 450.degree. F. for 2 minutes.
Dependencies are inferred from the claim text.