UNWOVEN MATERIAL Russian patent published in 1994 - IPC

Abstract RU 2011709 C1

FIELD: purifying gas-air mixture against toxic acid gases and solid particles. SUBSTANCE: fibrous canvas is manufactured of layers of modified polyamide fiber, anion-exchange modified polyamide fiber and of thermoplastic fiber, mass ratio being (1-1.8): (2.5-3): (0.5-0.8). EFFECT: improves desired product quality. 1 dwg, 1 tbl

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RU 2 011 709 C1

Authors

Zheltobrjukhov V.F.

Polkovnikov Ju.F.

Menzelintseva N.V.

Dates

1994-04-30—Published

1991-06-27—Filed