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BR0111929A - Use of gallic acid for the stabilization of chromium-iii against oxidation in chrome tanning leather - Google Patents

Use of gallic acid for the stabilization of chromium-iii against oxidation in chrome tanning leather

Info

Publication number
BR0111929A
BR0111929A BR0111929-0A BR0111929A BR0111929A BR 0111929 A BR0111929 A BR 0111929A BR 0111929 A BR0111929 A BR 0111929A BR 0111929 A BR0111929 A BR 0111929A
Authority
BR
Brazil
Prior art keywords
stabilization
chromium
against oxidation
gallic acid
chrome tanning
Prior art date
Application number
BR0111929-0A
Other languages
Portuguese (pt)
Other versions
BR0111929B1 (en
Inventor
Volkan Candar
Ivo Reetz
Yonca Zorluoglu
Juan Jose Palma Herrero
Original Assignee
Cognis Deutschland Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Cognis Deutschland Gmbh filed Critical Cognis Deutschland Gmbh
Publication of BR0111929A publication Critical patent/BR0111929A/en
Publication of BR0111929B1 publication Critical patent/BR0111929B1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C14—SKINS; HIDES; PELTS; LEATHER
    • C14C—CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
    • C14C3/00—Tanning; Compositions for tanning
    • C14C3/02—Chemical tanning
    • C14C3/28—Multi-step processes
    • C—CHEMISTRY; METALLURGY
    • C14—SKINS; HIDES; PELTS; LEATHER
    • C14C—CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
    • C14C3/00—Tanning; Compositions for tanning
    • C14C3/02—Chemical tanning
    • C14C3/08—Chemical tanning by organic agents
    • C14C3/10—Vegetable tanning
    • C14C3/12—Vegetable tanning using purified or modified vegetable tanning agents

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Treatment And Processing Of Natural Fur Or Leather (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

Hydrolysates of vegetable tanning agents are suitable for stabilising chrome-III against oxidation in chrome-tanned leather.
BRPI0111929-0A 2000-06-28 2001-06-19 process for stabilizing chromium iii against oxidation on chromium tanned leather. BR0111929B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10031545A DE10031545A1 (en) 2000-06-28 2000-06-28 Use of hydrolysates of vegetable tannins to stabilize chromium III against oxidation in chrome-tanned leather
DE10031545.3 2000-06-28
PCT/EP2001/006860 WO2002000942A1 (en) 2000-06-28 2001-06-19 Use of hydrolysates of vegetable tanning agents for stabilising chrome-iii against oxidation in chrome-tanned leather

Publications (2)

Publication Number Publication Date
BR0111929A true BR0111929A (en) 2003-06-10
BR0111929B1 BR0111929B1 (en) 2012-10-30

Family

ID=7647121

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0111929-0A BR0111929B1 (en) 2000-06-28 2001-06-19 process for stabilizing chromium iii against oxidation on chromium tanned leather.

Country Status (5)

Country Link
EP (1) EP1297189B1 (en)
AT (1) ATE302857T1 (en)
BR (1) BR0111929B1 (en)
DE (2) DE10031545A1 (en)
WO (1) WO2002000942A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE469988T1 (en) * 2005-11-29 2010-06-15 Tfl Ledertechnik Gmbh LEATHER TREATMENT AND MEDIUM
DE102009060176A1 (en) 2009-12-23 2011-06-30 Volkswagen AG, 38440 Process for producing tanned leather

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RO90893B1 (en) * 1984-10-08 1987-01-31 Ioan Diaconu Chrome-tannin tannage process for shoe upper skins

Also Published As

Publication number Publication date
EP1297189B1 (en) 2005-08-24
ATE302857T1 (en) 2005-09-15
WO2002000942A1 (en) 2002-01-03
DE10031545A1 (en) 2002-01-10
DE50107215D1 (en) 2005-09-29
BR0111929B1 (en) 2012-10-30
EP1297189A1 (en) 2003-04-02

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Legal Events

Date Code Title Description
B25A Requested transfer of rights approved

Owner name: COGNIS IP MANAGEMENT GMBH (DE)

Free format text: TRANSFERIDO DE: COGNIS DEUTSCHLAND GMBH AND CO. KG

B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B09X Republication of the decision to grant [chapter 9.1.3 patent gazette]

Free format text: REFERENTE A PUBLICACAO DE 9.1 NA RPI NO2161 DE 05/06/2012

B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 30/10/2012, OBSERVADAS AS CONDICOES LEGAIS.

B21F Lapse acc. art. 78, item iv - on non-payment of the annual fees in time

Free format text: REFERENTE A 14A ANUIDADE.

B24J Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12)

Free format text: EM VIRTUDE DA EXTINCAO PUBLICADA NA RPI 2311 DE 22-04-2015 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDA A EXTINCAO DA PATENTE E SEUS CERTIFICADOS, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.