Plastic and nonmetallic article shaping or treating: processes – Forming articles by uniting randomly associated particles – Autogenously or by activation of dry coated particles
Patent
1982-09-10
1984-11-13
Lowe, James
Plastic and nonmetallic article shaping or treating: processes
Forming articles by uniting randomly associated particles
Autogenously or by activation of dry coated particles
264280, 2642888, 2642893, B29C 1702, B29D 2700
Patent
active
044825161
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: 3953566 (1976-04-01), Gore
patent: 4049589 (1977-09-01), Sakane
patent: 4096227 (1978-06-01), Gore
patent: 4110392 (1978-08-01), Yamazaki
patent: 4177334 (1979-12-01), Okita
patent: 4209480 (1980-06-01), Homsy
patent: 4225547 (1980-09-01), Okita
patent: 4248924 (1981-02-01), Okita
patent: 4250138 (1981-02-01), Okita
patent: 4277429 (1981-07-01), Okita
Bowman Jeffery B.
Hubis Daniel E.
Lewis James D.
Newman Stephen C.
Staley Richard A.
Lowe James
W. L. Gore & Associates, Inc.
LandOfFree
Process for producing a high strength porous polytetrafluoroethy 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 producing a high strength porous polytetrafluoroethy, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for producing a high strength porous polytetrafluoroethy will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2360409