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2 096 428

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IPC

(21) (22)

Application

94015381/04, 1994-04-26

(22)

Actual filing date

1994-04-26

(45)

Published

1997-11-20

(72)

Inventor

Pakhomov S.I.Andrianova G.P.Zhirjakov A.V.Mikhajlova T.V.

(73)

Holder

Moskovskaja Gosudarstvennaja Akademija Legkoj Promyshlennosti

METHOD OF PREPARING POROUS FIBROUS MATERIAL Russian patent published in 1997 - IPC

Abstract RU 2096428 C1

FIELD: manufacture of polymeric film materials, artificial materials and shoe components. SUBSTANCE: claimed method comprises treating low pressure polyethylene film in organic solvent that causes the film to swell. Film is first immersed into organic solvent at 20-25 C for 0.5-1 min, then into organic solvent at 120-150 C for 0.1-2 min. Film is then treated with dimethylformamide and sheet is simultaneously elongated at 500-3000 % and is subsequently dried. EFFECT: more efficient preparation method. 1 tbl

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RU 2 096 428 C1

Authors

Pakhomov S.I.

Andrianova G.P.

Zhirjakov A.V.

Mikhajlova T.V.

Dates

1997-11-20—Published

1994-04-26—Filed

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