Method for making porous structures

Details Method for making porous structures Method for making porous structures

1983-11-14

1989-09-12

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Forming articles by uniting randomly associated particles

Utilizing diverse solid particles

264120, 264123, B29C 6724

Patent

active

048657891

ABSTRACT:
A method for making a porous structure including forming a plurality of particles into a desired shape, the particles being in a size range from about 40 to about 400 microns and including from about 5 to about 100 percent by weight of microporous particles of a synthetic thermoplastic polymeric material and from about 0 to about 95 percent by weight of nonporous synthetic thermoplastic polymeric material; and subjecting the particles to an effective pressure from about 200 to about 8000 pounds per square inch, while retaining the particles in the desired shape, for a sufficient length of time to produce an integral porous structure having substantial physical integrity.

REFERENCES:
patent: 2569226 (1951-09-01), Carter
patent: 3671157 (1972-06-01), Smith
patent: 3674722 (1972-07-01), Rainer et al.
patent: 4205137 (1980-05-01), Akiyama
patent: 4247498 (1981-01-01), Castro
patent: 4349542 (1982-09-01), Staniforth
The Packing of Particles, Westman and Hugill Ontario Research Foundation, Toronto, Canada.

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