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2 182 602

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(51)

IPC

(21) (22)

Application

2001127952/12, 2001-10-16

(24)

Start date

2001-10-16

(22)

Actual filing date

2001-10-16

(45)

Published

2002-05-20

(72)

Inventor

Vinitskij B.D.Lebedev O.P.Studenikin S.I.Jakovlev K.P.

(73)

Holder

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

METHOD OF LEATHER PRODUCTION Russian patent published in 2002 - IPC

Abstract RU 2182602 C1

FIELD: leather industry. SUBSTANCE: method involves chrome tanning. Treatment of semifinished product is carried out with copolymer of acrylamide, methacrylic acid and acrylic acid nitrile taken in the ratio = (40-60): (20- 30): (20-30), respectively, taken in amount 1.0-3.0% of semifinished product mass followed by additional tanning with chrome tanning agent and neutralization. Invention can be used for production of leather for different aims. EFFECT: enhanced strength properties of leather. 1 tbl, 5 ex

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RU 2 182 602 C1

Authors

Vinitskij B.D.

Lebedev O.P.

Studenikin S.I.

Jakovlev K.P.

Dates

2002-05-20—Published

2001-10-16—Filed