| 摘要 |
<p>A granular powder of filled PTFE which has a high apparent density, a small mean particle diameter and a sharp particle size distribution, is excellent in the fluidity in a powdery state and can give molded articles being excellent in tensile strength and elongation and having low surface roughness; and a process for the production thereof. Powdered PTFE is mixed with a filler in water in the presence of a surfactant in a slurry state, and the resulting mixture is agitated in the presence of an organic liquid forming a liquid-liquid interface together with water to thereby conduct granulation.</p> |
