EP0084134B1 - Verfahren zum Nachgerben - Google Patents
Verfahren zum Nachgerben Download PDFInfo
- Publication number
- EP0084134B1 EP0084134B1 EP82111711A EP82111711A EP0084134B1 EP 0084134 B1 EP0084134 B1 EP 0084134B1 EP 82111711 A EP82111711 A EP 82111711A EP 82111711 A EP82111711 A EP 82111711A EP 0084134 B1 EP0084134 B1 EP 0084134B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- parts
- solution
- retanning
- tanning agent
- leather
- 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
- 238000000034 method Methods 0.000 title claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 32
- 239000010985 leather Substances 0.000 claims description 20
- 229920000642 polymer Polymers 0.000 claims description 18
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 12
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 12
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 claims description 11
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 9
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims description 3
- 239000007864 aqueous solution Substances 0.000 claims description 3
- 125000001302 tertiary amino group Chemical group 0.000 claims 2
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical group NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims 1
- GDFCSMCGLZFNFY-UHFFFAOYSA-N Dimethylaminopropyl Methacrylamide Chemical compound CN(C)CCCNC(=O)C(C)=C GDFCSMCGLZFNFY-UHFFFAOYSA-N 0.000 claims 1
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 33
- 239000000243 solution Substances 0.000 description 24
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 12
- 239000000203 mixture Substances 0.000 description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 238000006243 chemical reaction Methods 0.000 description 10
- FLCAEMBIQVZWIF-UHFFFAOYSA-N 6-(dimethylamino)-2-methylhex-2-enamide Chemical compound CN(C)CCCC=C(C)C(N)=O FLCAEMBIQVZWIF-UHFFFAOYSA-N 0.000 description 9
- 238000006116 polymerization reaction Methods 0.000 description 9
- 238000010992 reflux Methods 0.000 description 9
- 239000007787 solid Substances 0.000 description 9
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 6
- 238000004040 coloring Methods 0.000 description 6
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 5
- 125000003277 amino group Chemical group 0.000 description 5
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 4
- 239000002253 acid Substances 0.000 description 4
- -1 ammonium ions Chemical class 0.000 description 4
- 125000000129 anionic group Chemical group 0.000 description 4
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- WHOZNOZYMBRCBL-OUKQBFOZSA-N (2E)-2-Tetradecenal Chemical compound CCCCCCCCCCC\C=C\C=O WHOZNOZYMBRCBL-OUKQBFOZSA-N 0.000 description 2
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000004280 Sodium formate Substances 0.000 description 2
- 229960000583 acetic acid Drugs 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 239000000975 dye Substances 0.000 description 2
- 238000004043 dyeing Methods 0.000 description 2
- 235000019253 formic acid Nutrition 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- PSZYNBSKGUBXEH-UHFFFAOYSA-N naphthalene-1-sulfonic acid Chemical compound C1=CC=C2C(S(=O)(=O)O)=CC=CC2=C1 PSZYNBSKGUBXEH-UHFFFAOYSA-N 0.000 description 2
- 229940044654 phenolsulfonic acid Drugs 0.000 description 2
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 2
- 239000011541 reaction mixture Substances 0.000 description 2
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 2
- 235000017557 sodium bicarbonate Nutrition 0.000 description 2
- HLBBKKJFGFRGMU-UHFFFAOYSA-M sodium formate Chemical compound [Na+].[O-]C=O HLBBKKJFGFRGMU-UHFFFAOYSA-M 0.000 description 2
- 235000019254 sodium formate Nutrition 0.000 description 2
- 235000018553 tannin Nutrition 0.000 description 2
- 229920001864 tannin Polymers 0.000 description 2
- 239000001648 tannin Substances 0.000 description 2
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 description 1
- JKNCOURZONDCGV-UHFFFAOYSA-N 2-(dimethylamino)ethyl 2-methylprop-2-enoate Chemical compound CN(C)CCOC(=O)C(C)=C JKNCOURZONDCGV-UHFFFAOYSA-N 0.000 description 1
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- 150000004982 aromatic amines Chemical class 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 150000007942 carboxylates Chemical group 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 239000007859 condensation product Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000012362 glacial acetic acid Substances 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 description 1
- 235000019394 potassium persulphate Nutrition 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 150000003839 salts Chemical group 0.000 description 1
- 230000001953 sensory effect Effects 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 229920003169 water-soluble polymer Polymers 0.000 description 1
- 150000003754 zirconium Chemical class 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
- C14C3/28—Multi-step processes
-
- 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
- C14C3/22—Chemical tanning by organic agents using polymerisation products
Definitions
- the main tanning is usually carried out with mineral tanning agents, such as basic chromium, aluminum and / or zirconium salts, alone or in combination with synthetic tanning agents.
- mineral tanning agents such as basic chromium, aluminum and / or zirconium salts
- synthetic tanning agents serve to improve the sensory properties of the leather, such as feel, softness, grain and fullness. So it is not a tanning in the strict sense of the word, i. H. there is generally no marked increase in the shrinkage temperature of the leather.
- syntans i.e. water-soluble condensation products from e.g. B.
- naphthalenesulfonic acid and formaldehyde or from phenolsulfonic acid, formaldehyde and urea also lignosulfonic acids and, for some years now, water-soluble polymers and copolymers based on acrylic acid and other unsaturated polymerizable carboxylic acids, generally in combination with the aforementioned syntans. They are all anionic in character, which means that the dyeings are lightened to a greater or lesser extent with the usual anionic dyes.
- Tanning agents according to DE-A-28 43 233 offer progress in this regard, in which, in contrast to conventional syntans, small amounts of aromatic amines are condensed. Although these products give the leather good coloring properties when used alone for retanning, they are not able to deepen the coloration of leather that has been retanned with conventional syntans. In addition, their filling effect is less than that of commercially available polymer tanning agents based on acrylic acid or methacrylic acid.
- DE-A-2 127 959 describes polyampholytic resins with a ratio of carboxyl to amino groups of 97.5: 2.5 to 35: 45.
- Basic amino esters preferably dimethylaminoethyl methacrylate, emerge in particular as monomers containing amino groups.
- the basic esters have the disadvantage that they are sensitive to hydrolysis, and the coloring properties of a leather treated with such a polymer tanning agent leave something to be desired.
- the invention was therefore based on the object of developing a tanning process which avoids these disadvantages, i. H. that gives the leather favorable coloring properties and a good fullness even when anionic tanning and retanning agents are used.
- the polymer tanning agent to be used according to the invention must be water-soluble, i.e. H. at least 2, preferably at least 10% by weight aqueous solutions should be prepared under the conditions usually present during retanning (pH 3.5 to 6, preferably 4 to 5.5; temperature 10 to 70, preferably 30 to 45 ° C.) be.
- the polymer does not necessarily have to be completely genuine (clear) in this case, a colloidal (ie more or less cloudy) solution is also sufficient. Real solutions are preferred.
- the amount of polymer tanning agent used is 0.025 to 2.5, preferably 0.25 to 1.6%, based on the shaved weight.
- carboxyl groups Depending on the pH, a more or less large part of the carboxyl groups is present in salt form in aqueous solution.
- the type of cation is practically irrelevant; the most common are sodium, potassium and especially ammonium ions.
- ammonium ions are mono-, di- and trialkylammonium ions with 1 to 6 carbon atoms in the alkyl radical.
- the polymer tanning agent to be used according to the invention is obtained in the usual way by copolymerization in aqueous or organic solution, in dispersion or in bulk with the customary free radical initiators (for example peroxides, azodiisobutyronitrile).
- the customary free radical initiators for example peroxides, azodiisobutyronitrile.
- the polymer has a K value according to Fikentscher (Cellulose-Chemie 13, 1932, pages 58 to 64 and 71 to 74), measured in dimethylformamide, from 15 to 80, preferably 20 to 60. The measurement is carried out at 60 ° C. in one Mixture of 60 parts of dimethylformamide and 40 parts of glacial acetic acid at a concentration of 1 g / 100 ml.
- Fikentscher Cellulose-Chemie 13, 1932, pages 58 to 64 and 71 to 74
- the number ratio of amino to acid groups in the polymer tanning agent according to the invention should be 1:20 to 17:20, preferably 1: 8 to 1: 2, and the carboxyl group content should be 6 to 40, preferably 12 to 30% by weight of the total Polymers.
- the term «carboxyl groups is also intended to include carboxylate groups here.
- the retanning according to the invention can be carried out separately in a separate operation or together with the coloring and oiling. As mentioned, it is possible and even preferred to combine them with a conventional retanning, ie with anionic retanning agents, or to connect them to it.
- the polymer tanning agents to be used according to the invention impart not only a good fullness but above all good coloring properties to the leather.
- polymeric tanning agents are usually used in combination with syntans. As a rule, it is observed that this combination lightens the color even more than the use of syntan alone.
- the polymeric tanning agents according to the invention do not have this disadvantage, depending on the type of monomer containing amino groups used, a more or less significant color deepening compared to the coloring of the leather which has only been treated with syntans, can be enough.
- the polymer tanning agents according to the invention are surprisingly clearly superior to the syntans containing amino groups known from DE-A-28 43 233. This is particularly surprising because the number of carboxyl groups in the polymer tanning agent according to the invention exceeds that of the amino groups. In addition, there is usually a better filling effect and better light fastness.
- the starting materials mentioned in the examples, apart from the polymer tanning agents according to the invention, are commercially available.
- the polymerizations were carried out under a protective gas atmosphere (nitrogen).
- the solution obtained was used for retanning in the following way: First, 100 parts of seam-damp chrome cowhide were deacidified in 100 parts of water at 30 ° C. with 1 part of sodium formate and 0.4 part of sodium hydrogen carbonate. The mixture was then drummed in 100 parts of fresh, aqueous liquor at a temperature of 40 ° C. first with 1 part of a commercially available neutralized dyeing aid based on phenolsulfonic acid for 20 minutes, after which 7 parts of tannin solution were added. After drumming for a further 40 minutes, 4 parts of a commercially available full tanning agent based on phenol were added to the liquor and drumming for a further 60 minutes. Then 1 part of the Acid Brown 161 dye was added. After drumming for a further 30 minutes, 6 parts of a commercially available fat licker based on natural fat were used for greasing. Finally, 1 part of formic acid was acidified.
- a second leather was regged, dyed and greased in exactly the same way, except that instead of the retanning agent to be used according to the invention, a commercially available polymeric tanning agent based on acrylic acid / acrylonitrile was used.
- the leather treated according to the invention was dyed significantly deeper.
- the solution obtained was used for retanning as follows: First, 100 parts of seam-damp chrome cowhide were deacidified in 100 parts of water at 30 ° C. with 1 part of sodium formate and 0.3 part of sodium hydrogen carbonate. Subsequently, in 100 parts of fresh, aqueous liquor, it was first tumbled for 20 minutes at a temperature of 40 ° C. with 2 parts of a commercially available neutralized auxiliary tanning agent based on naphthalenesulfonic acid. Thereafter, 9 parts of the tannin solution obtained as described above were added to the liquor and drummed for a further 60 minutes. It was then colored with 1 part of Acid Brown 165 in the same liquor and then greased with 5 parts of a commercially available combination licker. Finally, it was acidified with 1 part of formic acid.
- the leather treated with the tanning agent according to the invention was again dyed significantly deeper.
- the tanning agent obtained was used according to Example 2. A very deeply colored leather was obtained.
- the leather thus produced as in Example 2 was dyed very deeply.
- the leather thus produced as in Example 2 was dyed in a deep tone.
- the leather thus produced as in Example 2 was dyed in a deep tone.
- a reaction vessel provided with a reflux condenser and a stirrer, 61 parts of acrylonitrile, 30 parts of acrylic acid, 9.6 parts of dimethylaminopropyl methacrylamide, 80 parts of dimethylformamide (DMF) and 20 parts of acetone were mixed and heated to 75.degree. Then 4 parts of AIBN were added in 4 portions within 60 minutes. After polymerization for one hour at 75 ° C., the reaction mixture was cooled and dissolved in a mixture of 286 parts of water and 30 parts of concentrated aqueous ammonia solution (NH 3 ). A solution with a solids content of 18.7% was obtained.
- NH 3 concentrated aqueous ammonia solution
- the leather thus produced as in Example 2 was dyed in a full tone.
- the tanning agent obtained was used according to Example 2. A deeply colored leather was obtained.
- the tanning agent obtained was used according to Example 2. A very deeply colored leather was obtained.
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)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19823201226 DE3201226A1 (de) | 1982-01-16 | 1982-01-16 | Verfahren zum nachgerben |
| DE3201226 | 1982-01-16 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0084134A2 EP0084134A2 (de) | 1983-07-27 |
| EP0084134A3 EP0084134A3 (en) | 1983-08-03 |
| EP0084134B1 true EP0084134B1 (de) | 1986-07-30 |
Family
ID=6153222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP82111711A Expired EP0084134B1 (de) | 1982-01-16 | 1982-12-16 | Verfahren zum Nachgerben |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US4596581A (enrdf_load_stackoverflow) |
| EP (1) | EP0084134B1 (enrdf_load_stackoverflow) |
| JP (1) | JPS58125800A (enrdf_load_stackoverflow) |
| DE (2) | DE3201226A1 (enrdf_load_stackoverflow) |
Families Citing this family (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3529248A1 (de) * | 1985-08-16 | 1987-02-26 | Bayer Ag | Terpolymerisate |
| DE3530478A1 (de) * | 1985-08-27 | 1987-03-05 | Benckiser Knapsack Gmbh | Verfahren zum faerben von ledern sowie dazu geeignete wasserloesliche, kationische polymere und verfahren zu ihrer herstellung |
| DE3702153A1 (de) * | 1987-01-26 | 1988-08-04 | Stockhausen Chem Fab Gmbh | Verfahren zum nachgerben |
| DE3816486A1 (de) * | 1987-05-14 | 1988-12-01 | Nissan Motor | Fahrzeug mit hinterrad-lenkvorrichtung |
| US5301480A (en) * | 1990-11-19 | 1994-04-12 | Sumitomo Rubber Industries, Ltd. | Stanchion unit assembly for floor boards |
| MX9204788A (es) * | 1991-08-22 | 1993-04-01 | Sandoz Ag | Proceso para la produccion de curtido o recurtido mineral de cuero o piel |
| DE4227974C2 (de) * | 1992-08-26 | 1996-04-18 | Stockhausen Chem Fab Gmbh | Alkoxygruppenhaltige Copolymerisate, Verfahren zu ihrer Herstellung und ihre Verwendung zum Nachgerben von Leder |
| DE4244006A1 (de) * | 1992-12-24 | 1994-06-30 | Bayer Ag | Kationische Pigmentbindemittel |
| GB2275481B (en) * | 1993-02-18 | 1996-06-12 | Sandoz Ltd | Re-tanning process |
| US5853427A (en) * | 1995-07-12 | 1998-12-29 | The United States Of America As Represented By The Secretary Of Agriculture | Use of polymerizable oil for leather fatliquor |
| US5709714A (en) * | 1996-03-11 | 1998-01-20 | Rohm And Haas Company | Method of treating leather with amphoteric polymers |
| US5820633A (en) * | 1996-09-20 | 1998-10-13 | Lesko; Patricia Marie | Method of treating leather with improved retaining agents |
| RU2131443C1 (ru) * | 1998-06-04 | 1999-06-10 | Новосибирский технологический институт Московской государственной академии легкой промышленности | Способ получения полимерных продуктов для обработки кожи |
| RU2129163C1 (ru) * | 1998-07-02 | 1999-04-20 | Чернецкий Владимир Николаевич | Способ дубления кож |
| RU2151192C1 (ru) * | 1999-05-26 | 2000-06-20 | Новосибирский технологический институт Московской государственной академии легкой промышленности | Способ получения полимерных продуктов для обработки кожи |
| RU2168549C1 (ru) * | 1999-12-31 | 2001-06-10 | Новосибирский технологический институт Московской государственной академии легкой промышленности | Способ производства кож для верха обуви |
| RU2168548C1 (ru) * | 2000-05-06 | 2001-06-10 | Новосибирский технологический институт Московской государственной академии легкой промышленности | Способ дубления овчин |
| DE10027391B4 (de) * | 2000-06-02 | 2006-05-04 | Wella Ag | Oligomere und Polymere aus Crotonbetain oder Crotonbetainderivaten |
| RU2182179C1 (ru) * | 2000-11-14 | 2002-05-10 | Новосибирский технологический институт Московского Государственного Университета Дизайна и Технологии | Состав для крашения кожи |
| RU2182178C1 (ru) * | 2001-02-05 | 2002-05-10 | Новосибирский технологический институт Московского Государственного Университета Дизайна и Технологии | Состав для дубления кожи и меха |
| US6753369B2 (en) | 2001-10-16 | 2004-06-22 | Buckman Laboratories International, Inc. | Leather waterproofing formulation and leather goods waterproofed therewith |
| RU2188870C1 (ru) * | 2001-12-14 | 2002-09-10 | ОАО "Научно-исследовательский институт меховой промышленности" | Способ обработки меховых шкурок |
| CN101457262B (zh) * | 2008-12-19 | 2012-06-13 | 温州大学 | 一种皮革复鞣加脂剂的制备方法 |
| WO2017101093A1 (en) | 2015-12-18 | 2017-06-22 | Rohm And Haas Company | Chrome-free leather retanning |
| ES2930450T3 (es) | 2016-06-13 | 2022-12-13 | Tfl Ledertechnik Gmbh | Proceso para el precurtido o recurtido de cuero usando carboximetilcelulosa y sus sales |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3103447A (en) * | 1963-09-10 | Leather and method for producing it | ||
| US2138763A (en) * | 1938-03-30 | 1938-11-29 | Du Pont | Amino alcohol esters of the alpha substituted acrylic acids |
| GB530643A (en) * | 1938-06-16 | 1940-12-17 | Du Pont | Improvements in or relating to the tanning of skins |
| US2592107A (en) * | 1948-11-19 | 1952-04-08 | Hercules Powder Co Ltd | Synthetic amphoteric polymers containing free amino groups and free acid groups |
| US2942930A (en) * | 1958-11-07 | 1960-06-28 | Fred P Luvisi | Alum tannage |
| US3744969A (en) * | 1970-06-09 | 1973-07-10 | Rohm & Haas | Break resistant leather |
| DE2843233C2 (de) * | 1978-10-04 | 1985-07-18 | Basf Ag, 6700 Ludwigshafen | Gerbstoff und dessen Verwendung |
| DE3013912A1 (de) * | 1980-04-11 | 1981-10-29 | Röhm GmbH, 6100 Darmstadt | Polymerprodukte zur behandlung von bloessen und leder |
| DE3267088D1 (en) * | 1981-03-06 | 1985-12-05 | Ciba Geigy Ag | Method of retanning leather with acrylic oligomers |
| DE3141496A1 (de) * | 1981-10-20 | 1983-04-28 | Basf Ag, 6700 Ludwigshafen | Polymergerbstoff und verfahren zum nachgerben |
-
1982
- 1982-01-16 DE DE19823201226 patent/DE3201226A1/de not_active Withdrawn
- 1982-12-16 DE DE8282111711T patent/DE3272390D1/de not_active Expired
- 1982-12-16 EP EP82111711A patent/EP0084134B1/de not_active Expired
-
1983
- 1983-01-10 JP JP58001273A patent/JPS58125800A/ja active Granted
-
1985
- 1985-05-10 US US06/732,808 patent/US4596581A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58125800A (ja) | 1983-07-26 |
| DE3272390D1 (en) | 1986-09-04 |
| EP0084134A3 (en) | 1983-08-03 |
| DE3201226A1 (de) | 1983-07-28 |
| JPH0231760B2 (enrdf_load_stackoverflow) | 1990-07-16 |
| US4596581A (en) | 1986-06-24 |
| EP0084134A2 (de) | 1983-07-27 |
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