GB191307138A - Improvements in and relating to Tanning. - Google Patents

Improvements in and relating to Tanning.

Info

Publication number
GB191307138A
GB191307138A GB191307138DA GB191307138A GB 191307138 A GB191307138 A GB 191307138A GB 191307138D A GB191307138D A GB 191307138DA GB 191307138 A GB191307138 A GB 191307138A
Authority
GB
United Kingdom
Prior art keywords
naphthalene
formaldehyde
acids
tanning
class
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
Inventor
James Yate Johnson
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
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 BASF SE filed Critical BASF SE
Application granted granted Critical
Publication of GB191307138A publication Critical patent/GB191307138A/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
    • 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)
  • Coloring (AREA)

Abstract

7138. Johnson, J. Y., [Badische Anilin & Soda Fabrik]. March 25. Tanning with special chemicals.-Skins are tanned by means of aqueous solutions of amorphous aromatic sulphonic acids which are free from phenolic hydroxyl groups and can precipitate glue or gelatine from a solution. The acids employed may be of high molecular product and contain several benzene or naphthalene residues. Suitable compounds are those obtained, as described in Specification 7137/13, [Class 2(iii), Dyes &c.], by reacting with formaldehyde on a naphthalene sulphonic acid in the presence or absence of condensation agents; or the bodies obtained by sulphonating the resins derived from formaldehyde and naphthalene, as described in Specification 16,245/07, [Class 2, Acids and salts, Organic &c.], may be employed. Examples are given of the methods of preparing tanning compounds by sulphonation of naphthalene, carbazole, and retene with sulphuric acid and condensing the products with formaldehyde. #- naphthalene-sulphonic acid is also condensed with sulphur chloride. Specifications 4605/07 and 8511/12 are also referred to.
GB191307138D 1913-02-22 1913-03-25 Improvements in and relating to Tanning. Expired GB191307138A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1005X 1913-02-22
GB191307138T 1913-03-25

Publications (1)

Publication Number Publication Date
GB191307138A true GB191307138A (en) 1914-02-12

Family

ID=87929955

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191307138D Expired GB191307138A (en) 1913-02-22 1913-03-25 Improvements in and relating to Tanning.

Country Status (2)

Country Link
FR (1) FR462635A (en)
GB (1) GB191307138A (en)

Also Published As

Publication number Publication date
FR462635A (en) 1914-01-31

Similar Documents

Publication Publication Date Title
US2208095A (en) Process of producing insoluble condensation products containing sulphur and nitrogen
US1901536A (en) Manufacture of tanning substances
US2099717A (en) Process for the production of water-soluble condensation products
GB191307138A (en) Improvements in and relating to Tanning.
US1191480A (en) Tanning.
US2199776A (en) Water-soluble condensation product and its manufacture
US2102654A (en) Methods for producing decomposition products from olefine-so complexes
US1696199A (en) Aromatic sulphonic acid
US2287904A (en) Derivatives of phenols
US1344950A (en) Tanning material and method of producing the same
US2872437A (en) Production of oil-soluble sulfonates
GB148898A (en) Manufacture of tanning agents and the application thereof
GB750143A (en) Manufacture of tanning agents
GB116933A (en) Improvements in the Manufacture of Substances capable of Precipitating Glue or Gelatine.
US1254364A (en) Compound suitable for tanning.
US2340901A (en) Terpene derivative
US1668144A (en) Process for producing resists on animal fibers
US2218996A (en) Tanning material
GB190912207A (en) Improvements in and relating to the Manufacture and Production of Dyestuffs of the Gallocyanine Series.
GB710757A (en) Cation-exchanging synthetic resins
GB190101358A (en) The Manufacture and Production of Colouring Matters of the Anthracene Series
GB156670A (en) Process for tanning hides
US1057886A (en) Mode of manufacturing a new form of synthetic indigo.
GB191307137A (en) Improvements in the Manufacture and Production of Soluble Condensation Products of Formaldehyde.
GB269973A (en) Improvements in and relating to the manufacture of resin-like bodies