Polytetrafluoroethylene fine particles and powder
US5324785A · kind A · utility
33Cited by
6References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 8, 1993 |
| Grant date | Jun 28, 1994 |
| Priority date | — |
| Expiry date | Oct 8, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S525/902
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Colloidal polytetrafluoroethylene fine particles having an average particle size of 0.05 to 1.0 .mu.m and each comprising a core made of polytetrafluoroethylene which has a high molecular weight and can be fibrilled and a shell surrounding the core and made of a low molecular weight polytetrafluoroethylene which is not fibrilled, which has good dispersibility in water or an organic solvent and easily provides an organosol by a phase transfer method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.