Method for the granulation of polytetrafluoroethylene powder

Details Method for the granulation of polytetrafluoroethylene powder Method for the granulation of polytetrafluoroethylene powder

1997-02-27

1998-11-10

Husar, John M.

Solid material comminution or disintegration

Processes

With application of fluid or lubricant material

241 21, 241 22, B02C 1912

Patent

active

058331492

ABSTRACT:
A method for the granulation of polytetrafluoroethylene powder comprises spraying a binder solution on the powder while the powder is stirred and ground. The binder solution is an aqueous surfactant solution having a surface tension of 25 dyne/cm or lower at 20.degree. C. and contains polytetrafluoroethylene colloidal particles.

REFERENCES:
patent: 3265679 (1966-08-01), Black, III et al.
patent: 3726483 (1973-04-01), Kometani et al.
patent: 3992350 (1976-11-01), Bensa et al.

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