GB199528A - Improvements in the manufacture of tanning agents - Google Patents

Improvements in the manufacture of tanning agents

Info

Publication number
GB199528A
GB199528A GB999522A GB999522A GB199528A GB 199528 A GB199528 A GB 199528A GB 999522 A GB999522 A GB 999522A GB 999522 A GB999522 A GB 999522A GB 199528 A GB199528 A GB 199528A
Authority
GB
United Kingdom
Prior art keywords
manufacture
condensing
products
tanning agents
agents
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
GB999522A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB999522A priority Critical patent/GB199528A/en
Publication of GB199528A publication Critical patent/GB199528A/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)
  • Phenolic Resins Or Amino Resins (AREA)
  • Treatment And Processing Of Natural Fur Or Leather (AREA)

Abstract

Resinous condensation products are prepared by first condensing phenols with acetone and then condensing the products with formaldehyde; or phenols are first condensed with formaldehyde and the products then condensed with acetone; the several condensations may be effected in presence of either alkaline or acid condensing-agents. The resulting resins are sulphonated as described in Specification 171,729 to yield tanning-agents. Reference has been directed by the Comptroller to Specification 111,141.
GB999522A 1922-04-07 1922-04-07 Improvements in the manufacture of tanning agents Expired GB199528A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB999522A GB199528A (en) 1922-04-07 1922-04-07 Improvements in the manufacture of tanning agents

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB999522A GB199528A (en) 1922-04-07 1922-04-07 Improvements in the manufacture of tanning agents

Publications (1)

Publication Number Publication Date
GB199528A true GB199528A (en) 1923-06-28

Family

ID=9882617

Family Applications (1)

Application Number Title Priority Date Filing Date
GB999522A Expired GB199528A (en) 1922-04-07 1922-04-07 Improvements in the manufacture of tanning agents

Country Status (1)

Country Link
GB (1) GB199528A (en)

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