Method for the preparation of fluoropolymer powdered materials
US8166668B2 · kind B2 · utility
0Cited by
7References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 16, 2007 |
| Grant date | May 1, 2012 |
| Priority date | — |
| Expiry date | Aug 3, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S977/773
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method for the preparation of fluoropolymer powdered materials is disclosed. A suspension of solid fluoropolymer particles in a liquid carrier, preferably water, is frozen and the frozen carrier is then removed by sublimation at sub-atmospheric pressure to produce a dry powder of fluoropolymers particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.