Microemulsion polymerization systems for the production of small polytetrafluorethylene polymer particles
US5880213A · kind A · utility
4Cited by
11References
11Claims
0Family size
Inventors
Key dates
| Filing date | Jun 28, 1996 |
| Grant date | Mar 9, 1999 |
| Priority date | — |
| Expiry date | Jun 28, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S977/897
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
An aqueous microemulsion polymerization procedure is described in which very small colloidal polymer particles are produced from tetrafluoroethylene monomer. The polymerization procedure involves forming a microemulsion of at least one liquid saturated organic compound; adding gaseous tetrafluoroalkyl monomer to the microemulsion; and initiating polymerization by adding a free-radical initiator to the mixture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.