GB490296A - Manufacture of tanning agents - Google Patents

Manufacture of tanning agents

Info

Publication number
GB490296A
GB490296A GB4463/37A GB446337A GB490296A GB 490296 A GB490296 A GB 490296A GB 4463/37 A GB4463/37 A GB 4463/37A GB 446337 A GB446337 A GB 446337A GB 490296 A GB490296 A GB 490296A
Authority
GB
United Kingdom
Prior art keywords
product
tanning
synthetic tanning
dispersing
phenol
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
GB4463/37A
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
Publication of GB490296A publication Critical patent/GB490296A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C14SKINS; HIDES; PELTS; LEATHER
    • C14CCHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
    • C14C3/00Tanning; Compositions for tanning
    • C14C3/02Chemical tanning
    • C14C3/08Chemical tanning by organic agents
    • C14C3/18Chemical tanning by organic agents using polycondensation products or precursors thereof
    • C14C3/20Chemical tanning by organic agents using polycondensation products or precursors thereof sulfonated
    • CCHEMISTRY; METALLURGY
    • C14SKINS; HIDES; PELTS; LEATHER
    • C14CCHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
    • C14C3/00Tanning; Compositions for tanning
    • C14C3/02Chemical tanning
    • C14C3/08Chemical 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)
  • Phenolic Resins Or Amino Resins (AREA)
  • Coloring (AREA)

Abstract

In a process for the production of tanning-agents, reference is made to (1) a synthetic tanning-agent obtained by sulphonating a -methylnaphthalene and dispersing in the product a liquid resin made by alkaline condensation of two mols. of phenol with one mol. of paraformaldehyde, and (2) a synthetic tanning-agent obtained by dispersing a phenolformaldehyde resin in butylnaphthalene sulphonic acid solution.ALSO:Tanning-agents are obtained by mixing (a) products obtained by sulphonating mixtures of natural resins with phenols, or phenolic esters of natural resins, and eliminating a substantial part of the adhering inorganic electrolytes from the sulphonation products, with (b) synthetic tanning agents containing aromatic residues and -SO3H groups. Suitable components of type (a) are obtainable by the process described in Specification 489,967. Suitable components of type (b) are the sulphonic acids of condensation products obtainable from aromatic compounds such as a phenol, naphthalene or aniline, with a bridge-forming reagent such as an aldehyde, sulphur or sulphur chloride. In the examples: (1) an aqueous solution of a sulphonated product obtained from pine resin and phenol, as described in Specification 489,967, is mixed with a synthetic tanning - agent obtained by sulphonating a -methylnaphthalene and dispersing in the product a liquid resin made by alkaline condensation of two mols. of phenol with one mol. of paraformaldehyde; (2) an ester prepared from colophony and tricresol is sulphonated, and the product is freed from electrolytes as described in Specification 489,967, it is then mixed with a synthetic tanning-agent obtained by dispersing a phenolformaldehyde resin in butynaphthalene sulphonic acid solution; (3) a mixture of liquid Swedish resin and b -naphthol is sulphonated, and the product is washed with sodium chloride solution of 6-7 per cent strength; an aqueous solution of the product is mixed with a synthetic tanning-agent obtained by treating naphthalene sulphonic acid with formaldehyde, and the mixture is evaporated.
GB4463/37A 1936-02-14 1937-02-15 Manufacture of tanning agents Expired GB490296A (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE817847X 1936-02-14
DE201010X 1936-02-14
DE2136997X 1936-02-14
DE490296X 1936-02-14
DE1936I0054331 DE698980C (en) 1936-02-14 1936-02-15 Method of tanning

Publications (1)

Publication Number Publication Date
GB490296A true GB490296A (en) 1938-08-12

Family

ID=60293621

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4463/37A Expired GB490296A (en) 1936-02-14 1937-02-15 Manufacture of tanning agents

Country Status (5)

Country Link
US (1) US2136997A (en)
CH (1) CH201010A (en)
DE (1) DE698980C (en)
FR (1) FR817847A (en)
GB (1) GB490296A (en)

Also Published As

Publication number Publication date
CH201010A (en) 1938-11-15
DE698980C (en) 1940-11-20
FR817847A (en) 1937-09-11
US2136997A (en) 1938-11-15

Similar Documents

Publication Publication Date Title
GB521207A (en) Manufacture of cation exchange artificial resins
GB515517A (en) Manufacture of mixed resins for cation exchange
GB481572A (en) The manufacture of tanning materials
GB490296A (en) Manufacture of tanning agents
GB791303A (en) Process for preparing compositions containing glycidyl ethers
GB726782A (en) Cation exchange resins
GB447417A (en) Improvements in or relating to the manufacture of water-soluble condensation products derived from phenolic resins
US2171963A (en) Condensation product and aqueous solution thereof
GB613139A (en) Improvements relating to cation-exchange materials
GB703235A (en) Improvements in or relating to the gluing of wood and similar materials without using high temperatures
GB490665A (en) Manufacture of tanning materials
US2218996A (en) Tanning material
GB465803A (en) The manufacture of tanning materials
GB384619A (en) Manufacture of aromatic oxy-carboxylic acids
DE616545C (en) Process for the production of cyclohexylated phenols
GB494871A (en) Improvements in the manufacture and production of substances having tanning action
GB483481A (en) Manufacture of condensation products and aqueous solutions thereof and their application in tanning
GB159494A (en) A process for the manufacture of resinous phenol formaldehyde condensation products
GB797438A (en) Improvements in the preparation of cation-exchange resins
GB416191A (en) Manufacture of tanning substances
GB409490A (en) An improved process for making resinous condensation products
GB576745A (en) Improvements in or relating to resinous compositions
GB148126A (en) Manufacture of tanning agents and the application thereof
GB649516A (en) Process of manufacturing synthetic tannin from aromatic sulphonic acids
GB496898A (en) Process for the manufacture of tanning agents