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2 127 335

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IPC

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Application

96122271/04, 1996-11-20

(22)

Actual filing date

1996-11-20

(45)

Published

1999-03-10

(72)

Inventor

Serkov A.T.Matveev V.S.Budnitskij G.A.Zakharov A.G.Zlatoustova L.A.Kalacheva A.V.

(73)

Holder

Vserossijskij Nauchno-Issledovatel'Skij Institut Polimernykh Volokon S Opytnym Zavodom

METHOD OF MANUFACTURING POLYACRYLONITRILE THREADS SUITABLE FOR PRODUCTION OF THIN HIGH-STRENGTH CARBON TAPES Russian patent published in 1999 - IPC

Abstract RU 2127335 C1

FIELD: polymer materials. SUBSTANCE: polyacrylonitrile "Nitron" fibers, optionally pretreated with ammonia, amine, or quaternary ammonium base, are dissolved in presence of 0.5-3.0 wt % alkali or alkali-earth metal chloride. Resultant copolymer solution is formed into precipitation bath with low precipitating capability to produce thread, which is then treated and dried. Tapes manufactured from this thread has tensile strength 154 to 180.3 kg/sq. mm and can be used for manufacturing sports equipment and in aircraft industry. EFFECT: increased strength of initial fiber and tape. 3 cl, 6 ex

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RU 2 127 335 C1

Authors

Serkov A.T.

Matveev V.S.

Budnitskij G.A.

Zakharov A.G.

Zlatoustova L.A.

Kalacheva A.V.

Dates

1999-03-10—Published

1996-11-20—Filed

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