Highly air permeable expanded polytetrafluoroethylene membranes

Details Highly air permeable expanded polytetrafluoroethylene membranes Highly air permeable expanded polytetrafluoroethylene membranes

1989-02-02

1990-02-20

Sever, Frank

Liquid purification or separation

Filter

Material

55528, 210507, B01D 1300, B01D 2908

Patent

active

049024230

ABSTRACT:
A thin, low density porous polytetrafluoroethylene membrane having very large pores and heretofore unknown high air permeabilities is described. The membrane is produced by a particular series of longitudinal and transverse stretching steps carried out under particular conditions.

REFERENCES:
patent: 3953566 (1976-04-01), Gore
patent: 3962153 (1976-06-01), Gore
patent: 4025679 (1977-05-01), Denny
patent: 4096227 (1978-06-01), Gore
patent: 4187390 (1980-02-01), Gore
patent: 4248924 (1981-02-01), Okita
patent: 4482516 (1984-11-01), Bowman et al.
patent: 4598011 (1986-07-01), Bowman
patent: 4814412 (1989-03-01), Crowther

Affiliated with

Also associated with

Rating

Highly air permeable expanded polytetrafluoroethylene membranes does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Highly air permeable expanded polytetrafluoroethylene membranes , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Highly air permeable expanded polytetrafluoroethylene membranes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1614645