ポリテトラフルオロエチレンファインパウダーの製造方法

Japanese Patent JP5655869

B2

The present invention provides a process for producing a PTFE fine powder having superior handling characteristics despite of a low apparent density.The present invention relates to a process for producing a polytetrafluoroethylene fine powder characterized by including:(1) a step of preparing an aqueous dispersion containing polytetrafluoroethylene, water and a surfactant (A);(2) a step of initiating coagulation of the polytetrafluoroethylene in said aqueous dispersion by agitating said aqueous dispersion;(3) a step of adding a surfactant (B) after the step (2);(4) a step of terminating coagulation after the step (3);(5) a step of collecting a wet powder of the polytetrafluoroethylene; and(6) a step of drying the wet powder of the polytetrafluoroethylene.

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宮本 政佳
山中 拓
澤田 又彦

JP2012555979A

January 21, 2015

September 29, 2011

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ダイキン工業株式会社

C08J3/16; C08F14/26

Patent business corporation Yasutomi international patent firm

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