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IPC

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Application

98118804/12, 1998-10-19

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Start date

1998-10-19

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Actual filing date

1998-10-19

(45)

Published

1999-06-27

(72)

Inventor

Zurabjan K.M.(Ru)Makarov-Zemljanskij Ja.Ja.(Ru)Arifov Tofik MurtazaevichKaras' Anatolij MikhajlovichBogdanov N.V.(Ru)Titkova M.V.(Ru)Okhotnikova Nina Anatol'Evna

(73)

Holder

Zurabjan Karapet Mkhitarovich

METHOD OF ESTIMATING TANNING CAPACITY OF CHROME TANNER Russian patent published in 1999 - IPC

Abstract RU 2132555 C1

FIELD: leather industry. SUBSTANCE: determination is carried out on model collagen- containing substrate to determine amount of chromium compounds reversibly and irreversibly bound to collagen in order to use their ratio in evaluation of quality of tanner. Tanning capacity is expressed by binding coefficient K_b calculated from following formula: K_b = m_abs - m_el/m_abs where m_abs is mass of tanner (on conversion to chromium(III) oxide) absorbed by substrate and m_el is mass of tanner eluted from substrate by 0.1 N sulfuric acid solution. EFFECT: facilitated estimation procedure. 1 tbl

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RU 2 132 555 C1

Authors

Zurabjan K.M.(Ru)

Makarov-Zemljanskij Ja.Ja.(Ru)

Arifov Tofik Murtazaevich

Karas' Anatolij Mikhajlovich

Bogdanov N.V.(Ru)

Titkova M.V.(Ru)

Okhotnikova Nina Anatol'Evna

Dates

1999-06-27—Published

1998-10-19—Filed