FR50268E - Process for preparing tanning substances - Google Patents

Process for preparing tanning substances

Info

Publication number
FR50268E
FR50268E FR50268DA FR50268E FR 50268 E FR50268 E FR 50268E FR 50268D A FR50268D A FR 50268DA FR 50268 E FR50268 E FR 50268E
Authority
FR
France
Prior art keywords
tanning substances
preparing
preparing tanning
substances
tanning
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie AG
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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Application granted granted Critical
Publication of FR50268E publication Critical patent/FR50268E/en
Expired legal-status Critical Current

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
    • C14C3/08—Chemical tanning by organic agents
    • C14C3/18—Chemical tanning by organic agents using polycondensation products or precursors thereof
    • C14C3/20—Chemical tanning by organic agents using polycondensation products or precursors thereof sulfonated
FR50268D 1939-03-07 1939-03-07 Process for preparing tanning substances Expired FR50268E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR50268T 1939-03-07

Publications (1)

Publication Number Publication Date
FR50268E true FR50268E (en) 1940-01-29

Family

ID=8685296

Family Applications (1)

Application Number Title Priority Date Filing Date
FR50268D Expired FR50268E (en) 1939-03-07 1939-03-07 Process for preparing tanning substances

Country Status (1)

Country Link
FR (1) FR50268E (en)

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