Acoustical treatment of polymeric fibers and small particles and apparatus therefor
US8370996B2 · kind B2 · utility
0Cited by
5References
32Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 9, 2010 |
| Grant date | Feb 12, 2013 |
| Priority date | — |
| Expiry date | Dec 9, 2030 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01G99/00
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Systems and methods for treating small elongated fibrous and particles of certain materials, e.g., PTFE materials in a suspension are presented. In some instances, high-intensity ultrasound (or acoustical energy) is applied to a sample of the material, through a fluid coupling medium or suspension, to achieve a material transformation in the sample. In various embodiments, fibrillation of particles of PTFE or similar materials is accomplished, or the formation of extended structures of these materials is caused or enhanced. Also, the ability to separate long fiber samples by ultrasonic or acoustic cavitation action is provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.