Drawn polyethylene terephthalate fiber, pet tire cord, and tire comprising thereof
US9045589B2 · kind B2 · utility
1Cited by
10References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 31, 2009 |
| Grant date | Jun 2, 2015 |
| Priority date | — |
| Expiry date | Oct 5, 2030 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD10B2331/04
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a drawn PET fiber that can provide a cap ply cord and the like showing more improved modulus and good dimensional stability, a PET tire cord, and a tire including the same. The drawn PET fiber may be a fiber including 90 mol % or more of PET, of which the crystallinity is 53% or more, the amorphous orientation factor (AOF) is 0.15 or less, and the birefringence index is 0.14 to 0.16, after heat-treating the same at 230° C. for 1 minute under the initial load of 20 g/1000 d.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.