Filter sheet material and method of making same

Details Filter sheet material and method of making same Filter sheet material and method of making same

1982-08-26

1984-06-19

Lesmes, George F.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

427211, 427288, 427286, 427265, 156320, 428196, 428206, 428244, 428323, 427210, B41C 106, B32B 3120

Patent

active

044551878

ABSTRACT:
The invention relates to a filter sheet material composed of an air-permeable, flexible, especially textile supporting layer, on which there is imprinted in a certain pattern a mixture containing an adsorbent in powder form and a polymeric binding agent, the adsorbent covering up to 90% of the surface of the supporting layer. The invention furthermore relates to the use of such filter sheet materials with active carbon as adsorbent for protective clothing, and to the preparation of the material by rotary screen printing from a paste made of the powdered adsorbent and a dispersion of the polymeric binding agent.

REFERENCES:
patent: 1118516 (1914-11-01), Stifel
patent: 2029768 (1936-02-01), Ferguson et al.
patent: 3413982 (1968-12-01), Sublett et al.
patent: 3502537 (1970-03-01), Pearson et al.
patent: 3533825 (1970-10-01), Bohrer et al.
patent: 4086112 (1978-04-01), Porter
patent: 4190696 (1980-02-01), Hart et al.

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