Back to results
US 10,328,749 B2Granted
Cap ply strip with alternate nylon 6,6 and PET cords
AssigneeKordsa Teknik Tekstil Anonim Sirketi
InventorMehmet Sadettin Fidan
Life of this patent
Estimating the term…
Abstract
The present invention relates to a novel tire cord fabric or strip made of alternating PET and nylon 6.6 warp cords which is used as tire reinforcement. Such a novel tire cord fabric or strips improve high speed durability, tread separation resistance and impact resistance when used as zero degree spirally wound cap ply in pneumatic radial tires.
Claims20
A cap ply strip comprising:
- alternately woven parallel nylon 6,6 and PET cords circumferentially wound on a belt package of a pneumatic radial tire;
- wherein a cable twist factor of the PET cord, determined according to the following formula
- Twist factor=cord cable twist×(total cord linear density)1/2,
- is at least 15% higher than a cable twist factor of the nylon 6,6 cord;
- wherein the nylon 6,6 and the PET cords in the cap ply strip are arranged in a repeated pattern where two nylon 6,6 cords are followed by one PET cord.
2 more elements
A cap ply strip comprising:
- alternately woven parallel nylon 6,6 and PET cords circumferentially wound on a belt package of a pneumatic radial tire;
- wherein a cable twist factor of the PET cord, determined according to the following formula
- Twist factor=cord cable twist×(total cord linear density)1/2, is at least 15% higher than a cable twist factor of the nylon 6,6 cord;
- wherein the nylon 6,6 and the PET cords in said cap ply strip are arranged in a repeated pattern where one nylon 6,6 cord is followed by two PET cords.
1 more element
Dependencies are inferred from the claim text.