FR899561A - Process for the preparation of tannins - Google Patents

Process for the preparation of tannins

Info

Publication number
FR899561A
FR899561A FR899561DA FR899561A FR 899561 A FR899561 A FR 899561A FR 899561D A FR899561D A FR 899561DA FR 899561 A FR899561 A FR 899561A
Authority
FR
France
Prior art keywords
tannins
preparation
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 FR899561A publication Critical patent/FR899561A/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)
FR899561D 1942-07-10 1943-11-10 Process for the preparation of tannins Expired FR899561A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE899561X 1942-07-10

Publications (1)

Publication Number Publication Date
FR899561A true FR899561A (en) 1945-06-05

Family

ID=6849571

Family Applications (1)

Application Number Title Priority Date Filing Date
FR899561D Expired FR899561A (en) 1942-07-10 1943-11-10 Process for the preparation of tannins

Country Status (1)

Country Link
FR (1) FR899561A (en)

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