Patenton — panteon of patents

(19)

RU

(11)

2 112 041

(13)

C1

(51)

IPC

(21) (22)

Application

97112944/12, 1997-07-28

(22)

Actual filing date

1997-07-28

(45)

Published

1998-05-27

(72)

Inventor

Chursin V.I.Shapkarina N.P.L'Vova A.N.

(73)

Holder

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

METHOD OF VEGETABLE TANNING AGENT PREPARING Russian patent published in 1998 - IPC

Abstract RU 2112041 C1

FIELD: leather industry. SUBSTANCE: tanning agent is obtained by the combined condensation of vegetable extract and amino-compound taken from the group involving urea, melamine, dicyandiamide and formaldehyde. Process is carried out for 1.5-2.0 h. Obtained tanning agents do not raise dust. EFFECT: improved method of preparing, enhanced quality of tanning agent. 2 tbl

Similar patents RU2112041C1

Title Year Author Number
PROCESS FOR PREPARING SYNTHETIC TANNING AGENT 1995
  • Chursin V.I.
 RU2085592C1
METHOD OF PREPARING SYNTHETIC TANNER 1998
  • Chursin V.I.
 RU2129162C1
METHOD OF PREPARING METAL-CONTAINING SYNTHETIC TANNER 2002
  • Chursin V.I.
 RU2198223C1
METHOD OF PREPARING SYNTHETIC TANNER FOR CLEAR SKINS 1999
  • Chursin V.I.(Ru)
  • L'Vova A.N.(Ru)
  • Kunts Mikhail Ivanovich
  • Shlyk Gennadij Grigor'Evich
  • Krivosheeva Nellja Andreevna
 RU2156305C1
METHOD OF LEATHER WORKING 1995
  • Chursin V.I.
  • L'Vova A.N.
  • Kunts M.I.
  • Shlyk G.G.
  • Krivosheeva N.A.
 RU2083673C1
METHOD OF MANUFACTURING LEATHER WITH TIGHTENED FACE SURFACE 1999
  • Chursin V.I.
 RU2157410C1
METHOD OF LEATHER TREATMENT 2002
  • Chursin V.I.
  • L'Vova A.N.
 RU2193601C1
METHOD OF SYNTHESIS OF SYNTHETIC TANNING AGENT 1995
  • Chursin V.I.
  • L'Vova A.N.
 RU2091493C1
LEATHER MANUFACTURE PROCESS 1998
  • Chursin V.I.
  • L'Vova A.N.
 RU2129164C1
SKIN TREATMENT METHOD 2002
  • Chursin V.I.
  • Shapkarina N.P.
 RU2213786C1

RU 2 112 041 C1

Authors

Chursin V.I.

Shapkarina N.P.

L'Vova A.N.

Dates

1998-05-27—Published

1997-07-28—Filed

read Similar patents