Polyester fibers having high strength and high modulus and process for producing the same
US4851508A · kind A · utility
4Cited by
2References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 30, 1987 |
| Grant date | Jul 25, 1989 |
| Priority date | — |
| Expiry date | Jun 30, 2007 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD02J1/22
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Polyester fibers having both a high strength and a high modulus prepared from ethylene terephthalate polyester, and having an intrinsic viscosity of not less than 1.0 and an initial tensile modulus is not less than 130 g/d, said intrinsic viscosity being determined in a mixed solvent of p-chlorophenol and tetrachloro ethane (3:1) at 30.degree. C. Processes for producing the fibers are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.