GB199528A - Improvements in the manufacture of tanning agents - Google Patents
Improvements in the manufacture of tanning agentsInfo
- 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
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.
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) |
-
1922
- 1922-04-07 GB GB999522A patent/GB199528A/en not_active Expired
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