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2 174 151

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IPC

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Application

2001103514/12, 2001-02-08

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Start date

2001-02-08

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Actual filing date

2001-02-08

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Published

2001-09-27

(72)

Inventor

Chursin V.I.

(73)

Holder

Gosudarstvennoe Unitarnoe Predprijatie Tsentral'Nyj Nauchno-Issledovatel'Skij Institut Kozhevenno-Obuvnoj Promyshlennosti

RAWSTOCK LIMING-DEPILATION PROCESS Russian patent published in 2001 - IPC

Abstract RU 2174151 C1

FIELD: leather industry. SUBSTANCE: in a process of production of upper leather from bovine hides, rawstock is subjected to liming-depilation in aqueous solution of sodium sulfide, calcium hydroxide, and hydroxyethylated carboxymethylated starch. EFFECT: improved leather quality and reduced pollution of waste water by organics. 1 tbl, 5 ex

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RU 2 174 151 C1

Authors

Chursin V.I.

Dates

2001-09-27—Published

2001-02-08—Filed

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