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2 039 835

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(51)

IPC

(21) (22)

Application

93055065/12, 1993-12-10

(22)

Actual filing date

1993-12-10

(45)

Published

1995-07-20

(72)

Inventor

Kunts Mikhail Ivanovich[By]Abramchuk Nikolaj Dmitrievich[By]Kirichenko Elena Mikhajlovna[By]Krivosheeva Nellja Andreevna[By]

(73)

Holder

Bobrujskij Arendnyj Kozhevennyj Kombinat

METHOD OF HYDROPHOBIC LEATHER PRODUCTION Russian patent published in 1995 - IPC

Abstract RU 2039835 C1

FIELD: leather industry. SUBSTANCE: chromated semi-finished product is tanned additionally with chrome tanning agent, neutralized in the bath after additional tanning, stained, tanned additionally with synthetic tanning agent for 30-40 min, tanned additionally with organic tanning agents following by hydrophobizing greasing and treatment with organic acid, repeated additional tanning with chrome tanning agent and drying. Then method involves triple stretching with intermediate drying and the forth stretching. Then contrasting coating layer is applied following by fixing and pressing. EFFECT: improved method of leather production. 1 tbl

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RU 2 039 835 C1

Authors

Kunts Mikhail Ivanovich[By]

Abramchuk Nikolaj Dmitrievich[By]

Kirichenko Elena Mikhajlovna[By]

Krivosheeva Nellja Andreevna[By]

Dates

1995-07-20—Published

1993-12-10—Filed