Heat-strengthening process
US4668454A · kind A · utility
3Cited by
6References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 12, 1985 |
| Grant date | May 26, 1987 |
| Priority date | — |
| Expiry date | Jun 12, 2005 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06M11/13
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Use of surfactant in coating of yarn from anisotropic melt-forming polyester with alkali metal salts enhances heat-strengthening acceleration effect.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.