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2 156 305

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Application

99125902/12, 1999-12-09

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Start date

1999-12-09

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Actual filing date

1999-12-09

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Published

2000-09-20

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Inventor

Chursin V.I.(Ru)L'Vova A.N.(Ru)Kunts Mikhail IvanovichShlyk Gennadij Grigor'EvichKrivosheeva Nellja Andreevna

(73)

Holder

Tsentral'Nyj Nauchno-Issledovatel'Skij Institut Kozhevenno-Obuvnoj Promyshlennosti

METHOD OF PREPARING SYNTHETIC TANNER FOR CLEAR SKINS Russian patent published in 2000 - IPC

Abstract RU 2156305 C1

FIELD: leather industry. SUBSTANCE: preparation consists in that amino compounds (urea, cyclic ethyleneurea, or melamine), lignosulfonates, and formaldehyde are condensed for 1 to 3 h. EFFECT: improved quality of tanner and leather. 2 tbl

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RU 2 156 305 C1

Authors

Chursin V.I.(Ru)

L'Vova A.N.(Ru)

Kunts Mikhail Ivanovich

Shlyk Gennadij Grigor'Evich

Krivosheeva Nellja Andreevna

Dates

2000-09-20—Published

1999-12-09—Filed

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