High strength porous polytetrafluoroethylene product having a co

Details High strength porous polytetrafluoroethylene product having a co High strength porous polytetrafluoroethylene product having a co

1984-03-27

1986-07-01

Bell, James J.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

428224, 428421, 428422, 428910, 521145, B32B 300

Patent

active

045980110

ABSTRACT:
Porous polytetrafluoroethylene materials having high strength and coarse microstructure are produced by densifying the materials after removal of lubricant and then stretching. The term, "coarse," is used to indicate that the nodes are larger, the fibrils are longer, and the effective pore size is larger than conventional materials of the same matrix tensile strength. Densification can be achieved through the use of such devices as a densification die, a calender machine, or a press. This invention can be used to produce all kinds of shaped articles.

REFERENCES:
patent: 2642625 (1953-06-01), Peck
patent: 3027601 (1962-04-01), Barry
patent: 3060517 (1962-10-01), Fields
patent: 3962153 (1976-06-01), Gore
patent: 4049589 (1977-09-01), Sakane
patent: 4096277 (1978-06-01), Gore
patent: 4118532 (1978-10-01), Homsy
patent: 4159370 (1979-06-01), Koizumi et al.
patent: 4177334 (1979-12-01), Okita
patent: 4209480 (1980-06-01), Homsy
patent: 4248924 (1981-02-01), Okita
patent: 4277429 (1981-07-01), Okita

Affiliated with

Also associated with

Rating

High strength porous polytetrafluoroethylene product having a co does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with High strength porous polytetrafluoroethylene product having a co, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High strength porous polytetrafluoroethylene product having a co will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1082268