Electret filter media having an undulated surface

Details Electret filter media having an undulated surface Electret filter media having an undulated surface

1995-05-26

1997-08-19

Choi, Kathleen

Stock material or miscellaneous articles

Structurally defined web or sheet

Continuous and nonuniform or irregular surface on layer or...

428 92, 428 93, 428171, 428167, 428220, 428156, 428903, D04H 104

Patent

active

056586400

ABSTRACT:
Filter media is provided. The filter media comprises a web of melt blown microfibers having one surface substantially flat and the other surface having periodic wrinkle-like undulations. A method of making the filter media is also provided. The filter media is useful in electret filters when charged.

REFERENCES:
patent: Re30782 (1981-10-01), van Turnhout
patent: Re31282 (1983-06-01), van Turnhout
patent: 3359013 (1967-12-01), Smith
patent: 3971373 (1976-07-01), Braun
patent: 4100324 (1978-07-01), Anderson et al.
patent: 4103058 (1978-07-01), Humlicck
patent: 4118531 (1978-10-01), Hauser
patent: 4215682 (1980-08-01), Kubik et al.
patent: 4375718 (1983-03-01), Wadsworth et al.
patent: 4429001 (1984-01-01), Kolpin et al.
patent: 4493868 (1985-01-01), Meitner
patent: 4497712 (1985-02-01), Cowling
patent: 4555811 (1985-12-01), Shimalla
patent: 4588537 (1986-05-01), Klaase et al.
patent: 4592815 (1986-06-01), Nakao
patent: 4592943 (1986-06-01), Cancian
patent: 4627426 (1986-12-01), Wegener et al.
patent: 4627849 (1986-12-01), Walton et al.
patent: 4807619 (1989-02-01), Dyrud et al.
patent: 4819622 (1989-04-01), Taylor et al.
patent: 5149332 (1992-09-01), Walton et al.
Wente, V.A., et al., "Manufacture of Superfine Organic Fibers", Report No. 4364 of the Naval Research Laboratories published May 25, 1954.
Wente, V.A., "Superfine Thermoplastic Fibers", Industrial Engineering Chemistry, vol. 48, pp. 1342-2346.
Davies C.N., "The Separation of Airborne Dust and Particles", Institution of Mechanical Engineers, London, Proceedings 1B, 1952.
Filters and Filtration Handbook, Gulf Publishing Company, 1981, pp. 16-22.

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