GB1090606A - Tanning process - Google Patents

Tanning process

Info

Publication number
GB1090606A
GB1090606A GB2967866A GB2967866A GB1090606A GB 1090606 A GB1090606 A GB 1090606A GB 2967866 A GB2967866 A GB 2967866A GB 2967866 A GB2967866 A GB 2967866A GB 1090606 A GB1090606 A GB 1090606A
Authority
GB
United Kingdom
Prior art keywords
phenol
dihydroxy
tanning
weight
derivatives
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
GB2967866A
Inventor
Horst Endres
Franz Leppmeier
Hans Erdmann
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.)
BASF SE
Original Assignee
BASF SE
Badische Anilin and Sodafabrik 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
Priority claimed from DEB82647A external-priority patent/DE1274785B/en
Application filed by BASF SE, Badische Anilin and Sodafabrik AG filed Critical BASF SE
Publication of GB1090606A publication Critical patent/GB1090606A/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

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)

Abstract

In a process for the complete tanning of material such as animal hides, pelts, fur skins and furs, and the re-tanning of leather, the material is treated with between 1 and 30% of its weight of a methylol derivative of a mononuclear phenol or a binuclear phenol compound containing, in each nucleus, not more than one phenolic hydroxyl group, and being free from anionic groups and condensed rings, in a weakly acidic to weakly alkaline aqueous solution, e.g. having a pH between 6 and 9. The solution may contain up to 50%, by weight of a water-soluble organic solvent, such as methanol, ethanol and acetone. Suitable derivatives are: mono-, di- or polymethylol derivatives of phenol, cresols, xylenols, thymol, carvacrol, halophenols, phenylphenols, monohydroxy- and dihydroxy-diphenylmethanes, dihyroxy-diphenylpropanes. Particularly suitable derivatives are: monomethylol- and dimethylol-4, 4' dihydroxy-diphenyl sulphone. missing page 170
GB2967866A 1965-07-02 1966-07-01 Tanning process Expired GB1090606A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB82647A DE1274785B (en) 1965-07-02 1965-07-02 Methylol derivatives of phenols for tanning

Publications (1)

Publication Number Publication Date
GB1090606A true GB1090606A (en) 1967-11-08

Family

ID=6981580

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2967866A Expired GB1090606A (en) 1965-07-02 1966-07-01 Tanning process

Country Status (3)

Country Link
BE (1) BE683572A (en)
CH (1) CH462369A (en)
GB (1) GB1090606A (en)

Also Published As

Publication number Publication date
CH462369A (en) 1968-09-15
BE683572A (en) 1967-01-03

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