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2 017 869

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IPC

(21) (22)

Application

5017264/05, 1991-12-19

(22)

Actual filing date

1991-12-19

(45)

Published

1994-08-15

(72)

Inventor

Chistjakov V.G.Gorshkov N.I.Pakshver Eh.A.Baskakova M.A.Bondarenko V.M.Azarova M.T.Savchenko G.I.Marinicheva T.I.

(73)

Holder

Bondarenko Vladimir Mikhajlovich

METHOD OF PREPARING OF CARBON FIBROUS MATERIALS Russian patent published in 1994 - IPC

Abstract RU 2017869 C1

FIELD: chemical technology. SUBSTANCE: woven ribbon made of polyacrylonitrile at twist 50 m^-1, not more, is stretched out by 5-120% at 181-219 C on the air. Then oxidation at two stages is carried out. Firstly, up to density 1.22-1.28 g/cm³ at deformation 0-(+15)% , and then up to density 1.34-1.45 g/cm³ at deformation (-5)-(+10)%. Oxidized fiber is subjected for carbonization and high-temperature treatment. EFFECT: improved method of carbon fibrous material preparing. 4 tbl

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RU 2 017 869 C1

Authors

Chistjakov V.G.

Gorshkov N.I.

Pakshver Eh.A.

Baskakova M.A.

Bondarenko V.M.

Azarova M.T.

Savchenko G.I.

Marinicheva T.I.

Dates

1994-08-15—Published

1991-12-19—Filed