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2 079 341

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C1

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IPC

(21) (22)

Application

94001947/04, 1994-01-20

(22)

Actual filing date

1994-01-20

(45)

Published

1997-05-20

(72)

Inventor

Demina N.M.Zabrodina I.P.Martynov O.V.Martynov P.N.Prokhorova M.I.Sysoev Ju.M.

(73)

Holder

Demina Natal'Ja Mikhajlovna

METHOD FOR PRODUCTION OF FILTRATION MATERIAL Russian patent published in 1997 - IPC

Abstract RU 2079341 C1

FIELD: production of filtration materials. SUBSTANCE: cloth is impregnated by special composition. Composition comprises, mas.%: polytetrafluroethylene as its 50-% dispersion, 5-50; polydimethylsiloxane liquid as 60-70-% emulsion, 0.1-0.2; oxyethylated alkyl phenol (having 9 carbon atoms), 0.01-0.03 and its degree of oxyethylation being 10, and water. The process is followed by heat treatment at 150-360 C. EFFECT: improved efficiency. 3 cl, 1 tbl

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RU 2 079 341 C1

Authors

Demina N.M.

Zabrodina I.P.

Martynov O.V.

Martynov P.N.

Prokhorova M.I.

Sysoev Ju.M.

Dates

1997-05-20—Published

1994-01-20—Filed

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