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2 056 916

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IPC

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Application

93012965/04, 1993-03-10

(22)

Actual filing date

1993-03-10

(45)

Published

1996-03-27

(72)

Inventor

Kuznetsov Aleksandr ViktorovichKon'Kin Aleksandr LeonardovichSherstnev Vladimir Jur'EvichChichirov Andrej AleksandrovichKargin Jurij Mikhajlovich

(73)

Holder

Kuznetsov Aleksandr ViktorovichKon'Kin Aleksandr LeonardovichSherstnev Vladimir Jur'EvichChichirov Andrej AleksandrovichKargin Jurij Mikhajlovich

CELLULOSE NITRATE MICROFILTERS PRODUCTION METHOD Russian patent published in 1996 - IPC

Abstract RU 2056916 C1

FIELD: pharmacology. SUBSTANCE: solution, that has 8 - 12 mass shares of cellulose nitrate, 20 - 60 mass shares of acetone, 30 - 70 mass shares of alcohol, 1 - 3 mass shares of water, is being poured onto carrier. coagulation in steam-air medium is exercised under temperature of 12 - 30 C for 4 - 25 minutes. Formed porous film is kept in 5 - 40 % acetone water solution for 4 - 25 minutes. Then film is dried under temperature, that does not exceed 110 C. EFFECT: improved process of cellulose nitrate microfilters production.

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0
SU446526A1

RU 2 056 916 C1

Authors

Kuznetsov Aleksandr Viktorovich

Kon'Kin Aleksandr Leonardovich

Sherstnev Vladimir Jur'Evich

Chichirov Andrej Aleksandrovich

Kargin Jurij Mikhajlovich

Dates

1996-03-27—Published

1993-03-10—Filed

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