Filaments with high elastic modulus from polyester resins
US5681655A · kind A · utility
2Cited by
8References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 2, 1996 |
| Grant date | Oct 28, 1997 |
| Priority date | — |
| Expiry date | Jan 2, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2969
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Filaments from a polyester resin having an elastic modulus higher than 30 GPa and stress at break greater than 300 MPa. The filaments are obtained by upgrading under stretch filaments prepared from polyester resin mixed in the melt with a polyfunctional compound able to increase the polymer intrinsic viscosity by addition reaction in the solid state with the terminal groups of the resin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.