Polyareneazole/wood pulp and methods of making same
US7727356B2 · kind B2 · utility
1Cited by
8References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 15, 2006 |
| Grant date | Jun 1, 2010 |
| Priority date | — |
| Expiry date | Dec 9, 2027 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H15/02
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to wood pulp and polyareneazole pulp for use as reinforcement material in products including for example friction materials, fluid sealing materials, and papers. The pulp comprises (a) irregularly shaped, wood pulp fibrous structures, (b) irregularly shaped, polyareneazole fibrous structures, and (c) water, whereby wood pulp fibrils and/or stalks are substantially entangled with polyareneazole fibrils and/or stalks. The invention further relates to processes for making such wood pulp and polyareneazole pulp.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.