DE265915C - - Google Patents
Info
- Publication number
- DE265915C DE265915C DENDAT265915D DE265915DA DE265915C DE 265915 C DE265915 C DE 265915C DE NDAT265915 D DENDAT265915 D DE NDAT265915D DE 265915D A DE265915D A DE 265915DA DE 265915 C DE265915 C DE 265915C
- Authority
- DE
- Germany
- Prior art keywords
- formaldehyde
- condensation products
- alkali
- sulfuric acid
- tanning
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 claims description 7
- 239000000126 substance Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 2
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 15
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 11
- 239000007859 condensation product Substances 0.000 description 6
- DETXZQGDWUJKMO-UHFFFAOYSA-N 2-hydroxymethanesulfonic acid Chemical compound OCS(O)(=O)=O DETXZQGDWUJKMO-UHFFFAOYSA-N 0.000 description 4
- 150000002989 phenols Chemical class 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical class [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 1
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
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)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE265915C true DE265915C (enrdf_load_stackoverflow) |
Family
ID=523104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT265915D Active DE265915C (enrdf_load_stackoverflow) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE265915C (enrdf_load_stackoverflow) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE749553C (de) * | 1937-05-22 | 1944-11-24 | Verfahren zur Herstellung von kationenaustauschenden Kunstharzen | |
| DE755119C (de) * | 1936-07-14 | 1953-02-16 | Ig Farbenindustrie Ag | Verfahren zur Steigerung der Kationenaustauschfaehigkeit von Phenolaldehydharzen |
-
0
- DE DENDAT265915D patent/DE265915C/de active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE755119C (de) * | 1936-07-14 | 1953-02-16 | Ig Farbenindustrie Ag | Verfahren zur Steigerung der Kationenaustauschfaehigkeit von Phenolaldehydharzen |
| DE749553C (de) * | 1937-05-22 | 1944-11-24 | Verfahren zur Herstellung von kationenaustauschenden Kunstharzen |
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