Method of manufacturing an electret filter

Details Method of manufacturing an electret filter Method of manufacturing an electret filter

1985-02-06

1986-06-03

Niebling, John F.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

204168, 204169, 522157, 522161, 264 22, C07C 324, B29C 3502

Patent

active

045928150

ABSTRACT:
The disclosed method provides an electret filter having a permanent electrostatic charge and formed of polymer fibers having an intrinsic viscosity of 1.5 or less. Fibers of the requisite viscosity are formed into a non-woven fabric and fed, at room temperature, through a gap between a discharge electrode and a ground electrode while being tightly pressed against the ground electrode. The ground electrode preferrably presents a polished metal surface for contact with the web.

REFERENCES:
patent: 4091140 (1978-05-01), Harmon
patent: 4215682 (1980-08-01), Kubik
patent: 4310478 (1982-01-01), Balsleu
patent: 4430277 (1984-02-01), Lin

Affiliated with

Also associated with

Rating

Method of manufacturing an electret filter does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of manufacturing an electret filter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of manufacturing an electret filter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1231498