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2 107 731

(13)

C1

(51)

IPC

(21) (22)

Application

97103548/12, 1997-03-07

(22)

Actual filing date

1997-03-07

(45)

Published

1998-03-27

(72)

Inventor

Chursin V.I.Shapkarina N.P.

(73)

Holder

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

METHOD OF WORKING OUT TANNED INTERMEDIATE PRODUCT Russian patent published in 1998 - IPC

Abstract RU 2107731 C1

FIELD: leather industry. SUBSTANCE: offal manufactured according to common technique from bovine skins, after deashing, bating, and washing, is treated with carboxymethylated nonylphenols' ethoxylate taken in amount 0.5- 2.5% in presence of 1-4% of sodium chloride, the two values being based on weight of the offal. EFFECT: enhanced process efficiency. 1 tbl

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RU 2 107 731 C1

Authors

Chursin V.I.

Shapkarina N.P.

Dates

1998-03-27—Published

1997-03-07—Filed

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