Process for producing filter material

Details Process for producing filter material Process for producing filter material

1978-08-28

1980-03-11

Woo, Jay H.

Plastic and nonmetallic article shaping or treating: processes

Formation of solid particulate material directly from molten...

Utilizing electrical energy

264 14, 264140, 264200, 264211, 425 7, 425 10, B29C 600, B22D 2308

Patent

active

041928385

ABSTRACT:
A non-woven cellulose ester fibrous filter sheet material comprising cellulose ester staple fibers and cellulose ester fibrets which exhibits improved filtration properties and the method of its preparation.

REFERENCES:
patent: 2875473 (1959-03-01), Mitchell et al.
patent: 2925412 (1960-02-01), Johnston
patent: 2988782 (1961-06-01), Parrish et al.
patent: 3342921 (1967-09-01), Brundige et al.
patent: 3785918 (1974-01-01), Kawai et al.
patent: 3833438 (1974-09-01), Kaneko et al.
patent: 3879335 (1975-04-01), Sturck et al.
patent: 3885014 (1975-05-01), Fukada et al.
patent: 4040856 (1977-08-01), Litzinger

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