| 摘要 |
<p>A process for producing granular polytetrafluoroethylene powder by using a non-combustible bromine-containing organic solvent having a boiling point of 0 to 150 °C, particularly 1-bromopropene, as an organic fluid. Granular PTFE powder excellent in powder characteristics and capable of exhibiting a granularity equal to that of organic chlorofluorocarbon liquid having particularly excellent performance can be safely provided at a low cost to contribute to the reduction in the destruction of the ozonosphere and the prevention of the global warming.</p> |
