Process for preparing polytetrafluoroethylene granular powder

Details Process for preparing polytetrafluoroethylene granular powder Process for preparing polytetrafluoroethylene granular powder

1991-03-07

1992-10-20

Eley, Timothy V.

Solid material comminution or disintegration

Processes

With solidifying, consolidating or shaping

241 21, 264118, 264127, B02C 1900

Patent

active

051563436

ABSTRACT:
A process for preparing a polytetrafluoroethylene granular powder which comprises agitating primary particles of a finely divided polytetrafluoroethylene powder having an average particle size of not more than 100 .mu.m in an aqueous medium containing no organic liquid to form agglomerates while crushing an agglomerated powder in an apparatus having an agitating mechanism of the aqueous medium and a crushing mechanism of the agglomerates within a temperature range between not less than 20.degree. C. and less than 60.degree. C. According to the present invention, the dense polytetrafluoroethylene granular powder having the excellent electric properties and the high bulk density can be obtained without using the organic liquid which is expensive and whose use is restricted.

REFERENCES:
patent: 3674762 (1972-07-01), Izumo et al.
patent: 3726483 (1973-04-01), Kometani et al.
patent: 3781258 (1973-12-01), Kometani et al.
patent: 3882217 (1975-05-01), Banham et al.
patent: 3983200 (1976-09-01), Browning
patent: 4118235 (1978-10-01), Horiuchi et al.
patent: 4143110 (1979-03-01), Morozumi et al.
patent: 4241137 (1980-12-01), Izumo et al.
patent: 4308063 (1981-12-01), Horiuchi et al.

Affiliated with

Also associated with

Rating

Process for preparing polytetrafluoroethylene granular powder does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for preparing polytetrafluoroethylene granular powder, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for preparing polytetrafluoroethylene granular powder will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-187904