Processes for hydrolysis of polyphoshoric acid in polyareneazole filaments
US7968029B2 · kind B2 · utility
1Cited by
34References
10Claims
0Family size
Assignees
Inventor
Key dates
| Filing date | Mar 27, 2006 |
| Grant date | Jun 28, 2011 |
| Priority date | — |
| Expiry date | Mar 27, 2026 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01F6/74
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to processes for hydrolyzing polyphosphoric acid in polyareneazole filaments.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.