FR765867A - Process for the preparation of tanning substances - Google Patents

Process for the preparation of tanning substances

Info

Publication number
FR765867A
FR765867A FR765867DA FR765867A FR 765867 A FR765867 A FR 765867A FR 765867D A FR765867D A FR 765867DA FR 765867 A FR765867 A FR 765867A
Authority
FR
France
Prior art keywords
preparation
tanning substances
tanning
substances
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 FR765867A publication Critical patent/FR765867A/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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
FR765867D 1933-12-21 1933-12-21 Process for the preparation of tanning substances Expired FR765867A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR765867T 1933-12-21

Publications (1)

Publication Number Publication Date
FR765867A true FR765867A (en) 1934-06-18

Family

ID=9182977

Family Applications (1)

Application Number Title Priority Date Filing Date
FR765867D Expired FR765867A (en) 1933-12-21 1933-12-21 Process for the preparation of tanning substances

Country Status (1)

Country Link
FR (1) FR765867A (en)

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