Blended-fibre filter material

Details Blended-fibre filter material Blended-fibre filter material

1987-04-27

1989-01-17

Welsh, Maurice J.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Cellular products or processes of preparing a cellular...

521138, 521139, 521142, 428394, 428398, 210348, 2105001, 21050023, 21050035, 21050036, 21050043, 264 41, 264 453, 264 461, C08L 900

Patent

active

047988509

ABSTRACT:
A filter material is a felt of 60 weight % 2.8 decitex polypropylene fibres and 40 weight % of 3.5 decitex modacrylic fibres.

REFERENCES:
patent: 3595721 (1971-07-01), Hamano et al.
patent: 3904798 (1975-09-01), Vogt et al.
patent: 4291087 (1981-09-01), Warburton, Jr.
patent: 4670341 (1987-06-01), Lundsager
R. C. Brown, "Air Filters Made from Mixtures of Electrically Charged Fibres", Electrical and Magnetic Separation and Filtration Technology, Antwerp Conf., paper 23-25, May 1984 (vol. 6, pp. 117-122).

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