EP0496745A1 - Verfahren zur Walkfettung von Pelzfellen mit carbonsäurepartialesterhaltigen Walkölen. - Google Patents
Verfahren zur Walkfettung von Pelzfellen mit carbonsäurepartialesterhaltigen Walkölen.Info
- Publication number
- EP0496745A1 EP0496745A1 EP90914734A EP90914734A EP0496745A1 EP 0496745 A1 EP0496745 A1 EP 0496745A1 EP 90914734 A EP90914734 A EP 90914734A EP 90914734 A EP90914734 A EP 90914734A EP 0496745 A1 EP0496745 A1 EP 0496745A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- carboxylic acid
- oils
- partial esters
- groups
- polyols
- 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.)
- Granted
Links
- 150000002148 esters Chemical class 0.000 title claims abstract description 36
- 239000003921 oil Substances 0.000 title claims abstract description 23
- 150000001732 carboxylic acid derivatives Chemical class 0.000 title claims abstract 14
- 238000000034 method Methods 0.000 title claims description 10
- 238000009963 fulling Methods 0.000 title claims description 4
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims abstract description 17
- 229920005862 polyol Polymers 0.000 claims abstract description 15
- 150000003077 polyols Chemical class 0.000 claims abstract description 15
- 239000010698 whale oil Substances 0.000 claims description 25
- 239000002253 acid Substances 0.000 claims description 8
- 238000007670 refining Methods 0.000 claims description 8
- GPLRAVKSCUXZTP-UHFFFAOYSA-N diglycerol Chemical compound OCC(O)COCC(O)CO GPLRAVKSCUXZTP-UHFFFAOYSA-N 0.000 claims description 6
- AGNTUZCMJBTHOG-UHFFFAOYSA-N 3-[3-(2,3-dihydroxypropoxy)-2-hydroxypropoxy]propane-1,2-diol Chemical compound OCC(O)COCC(O)COCC(O)CO AGNTUZCMJBTHOG-UHFFFAOYSA-N 0.000 claims description 5
- 210000002268 wool Anatomy 0.000 description 22
- 150000001735 carboxylic acids Chemical class 0.000 description 17
- 239000002480 mineral oil Substances 0.000 description 10
- 239000002904 solvent Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000000605 extraction Methods 0.000 description 4
- 229930195733 hydrocarbon Natural products 0.000 description 4
- 150000002430 hydrocarbons Chemical class 0.000 description 4
- 238000003801 milling Methods 0.000 description 4
- 239000000080 wetting agent Substances 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 2
- IZUAKSAWRVFBPE-UHFFFAOYSA-N 2-methylheptadecanoic acid Chemical compound CCCCCCCCCCCCCCCC(C)C(O)=O IZUAKSAWRVFBPE-UHFFFAOYSA-N 0.000 description 2
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 2
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 2
- 241000283153 Cetacea Species 0.000 description 2
- 239000005642 Oleic acid Substances 0.000 description 2
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 2
- 241000283973 Oryctolagus cuniculus Species 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 150000004996 alkyl benzenes Chemical class 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- GHVNFZFCNZKVNT-UHFFFAOYSA-N decanoic acid Chemical compound CCCCCCCCCC(O)=O GHVNFZFCNZKVNT-UHFFFAOYSA-N 0.000 description 2
- 229940105990 diglycerin Drugs 0.000 description 2
- UKMSUNONTOPOIO-UHFFFAOYSA-N docosanoic acid Chemical compound CCCCCCCCCCCCCCCCCCCCCC(O)=O UKMSUNONTOPOIO-UHFFFAOYSA-N 0.000 description 2
- POULHZVOKOAJMA-UHFFFAOYSA-N dodecanoic acid Chemical compound CCCCCCCCCCCC(O)=O POULHZVOKOAJMA-UHFFFAOYSA-N 0.000 description 2
- 239000003995 emulsifying agent Substances 0.000 description 2
- IPCSVZSSVZVIGE-UHFFFAOYSA-N hexadecanoic acid Chemical compound CCCCCCCCCCCCCCCC(O)=O IPCSVZSSVZVIGE-UHFFFAOYSA-N 0.000 description 2
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 2
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- WWZKQHOCKIZLMA-UHFFFAOYSA-N octanoic acid Chemical compound CCCCCCCC(O)=O WWZKQHOCKIZLMA-UHFFFAOYSA-N 0.000 description 2
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 2
- SECPZKHBENQXJG-FPLPWBNLSA-N palmitoleic acid Chemical compound CCCCCC\C=C/CCCCCCCC(O)=O SECPZKHBENQXJG-FPLPWBNLSA-N 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 230000007903 penetration ability Effects 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 description 2
- XJRIDJAGAYGJCK-UHFFFAOYSA-N (1-acetyl-5-bromoindol-3-yl) acetate Chemical compound C1=C(Br)C=C2C(OC(=O)C)=CN(C(C)=O)C2=C1 XJRIDJAGAYGJCK-UHFFFAOYSA-N 0.000 description 1
- JNBVLGDICHLLTN-DZUOILHNSA-N (2s)-2-acetamido-n-[(2s,3s)-4-[[[(2s)-2-acetamido-3-methylbutanoyl]amino]-(cyclohexylmethyl)amino]-3-hydroxy-1-phenylbutan-2-yl]-3-methylbutanamide Chemical compound C([C@H](NC(=O)[C@@H](NC(C)=O)C(C)C)[C@@H](O)CN(CC1CCCCC1)NC(=O)[C@@H](NC(C)=O)C(C)C)C1=CC=CC=C1 JNBVLGDICHLLTN-DZUOILHNSA-N 0.000 description 1
- PHDVPEOLXYBNJY-KTKRTIGZSA-N 2-(2-hydroxyethoxy)ethyl (z)-octadec-9-enoate Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OCCOCCO PHDVPEOLXYBNJY-KTKRTIGZSA-N 0.000 description 1
- 235000021357 Behenic acid Nutrition 0.000 description 1
- 239000005632 Capric acid (CAS 334-48-5) Substances 0.000 description 1
- 239000005635 Caprylic acid (CAS 124-07-2) Substances 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 description 1
- FBPFZTCFMRRESA-KVTDHHQDSA-N D-Mannitol Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-KVTDHHQDSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 1
- 239000005639 Lauric acid Substances 0.000 description 1
- 229930195725 Mannitol Natural products 0.000 description 1
- 241000700110 Myocastor coypus Species 0.000 description 1
- 241000772415 Neovison vison Species 0.000 description 1
- 244000061176 Nicotiana tabacum Species 0.000 description 1
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 1
- 241000699700 Ondatra zibethicus Species 0.000 description 1
- 235000021314 Palmitic acid Nutrition 0.000 description 1
- 235000021319 Palmitoleic acid Nutrition 0.000 description 1
- CYTYCFOTNPOANT-UHFFFAOYSA-N Perchloroethylene Chemical group ClC(Cl)=C(Cl)Cl CYTYCFOTNPOANT-UHFFFAOYSA-N 0.000 description 1
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 229940116226 behenic acid Drugs 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- SECPZKHBENQXJG-UHFFFAOYSA-N cis-palmitoleic acid Natural products CCCCCCC=CCCCCCCCC(O)=O SECPZKHBENQXJG-UHFFFAOYSA-N 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000032050 esterification Effects 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- 150000002191 fatty alcohols Chemical class 0.000 description 1
- 150000008282 halocarbons Chemical class 0.000 description 1
- 235000019388 lanolin Nutrition 0.000 description 1
- 239000000594 mannitol Substances 0.000 description 1
- 235000010355 mannitol Nutrition 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- WQEPLUUGTLDZJY-UHFFFAOYSA-N n-Pentadecanoic acid Natural products CCCCCCCCCCCCCCC(O)=O WQEPLUUGTLDZJY-UHFFFAOYSA-N 0.000 description 1
- 229930014626 natural product Natural products 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 229960002446 octanoic acid Drugs 0.000 description 1
- 235000011837 pasties Nutrition 0.000 description 1
- 229920000223 polyglycerol Polymers 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 239000000600 sorbitol Substances 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 150000005846 sugar alcohols Chemical class 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 229950011008 tetrachloroethylene Drugs 0.000 description 1
- TUNFSRHWOTWDNC-HKGQFRNVSA-N tetradecanoic acid Chemical compound CCCCCCCCCCCCC[14C](O)=O TUNFSRHWOTWDNC-HKGQFRNVSA-N 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
- C14C9/00—Impregnating leather for preserving, waterproofing, making resistant to heat or similar purposes
- C14C9/02—Impregnating leather for preserving, waterproofing, making resistant to heat or similar purposes using fatty or oily materials, e.g. fat liquoring
Definitions
- the invention relates to whale oils for fur skins, a process for the fat greasing of fur skins and the use of certain carboxylic acid partial esters for the fat greasing of fur skins.
- Wool fat as such is difficult to incorporate into fur skins due to its pasty consistency. It is therefore usually liquefied with mineral oils, which considerably improves the penetration of the wool fat into the fur skins.
- the fur skins are first subjected to an extraction with solvents, mineral oils being extracted practically quantitatively and wool fat due to its poor solubility only being extracted to a small extent.
- the fur skins are then refined in order to remove adhering wool fat from the skins.
- the object on which the invention is based was therefore to develop constant-quality whale oils which give fur skins consistently good performance properties. Furthermore, the whale oils to be developed should not have their own smell, be liquid and be easy to incorporate into fur skins.
- the invention accordingly relates to whale oils for furs, which are characterized in that they contain C5_36 ⁇ carboxylic acid partial esters of polyols having 3 to 22 OH groups.
- the invention furthermore relates to the use of C5_36 carboxylic acid partial esters of polyols having 3 to 22 OH groups for the fat lubrication of fur skins.
- Preferred whale oils contain C6-36 ⁇ carboxylic acid partial esters, preferably Ci2-18 ⁇ ar -O n --ure partial esters, of polyols with 4 to 15 OH groups. Walk oils that are particularly preferred
- Ci2-i8 ⁇ carboxylic acid triglycerol partial esters contain.
- the whale oils according to the invention can contain non-volatile hydrocarbons, for example mineral oils and / or alkylbenzenes, the hydrocarbon content resulting from the desired viscosity and from the desired penetration capacity of the whale oils to be used.
- non-volatile hydrocarbons for example mineral oils and / or alkylbenzenes
- Most of the liquid carboxylic acid partial esters to be used according to the invention already have such a good penetration ability into the fur skins that there is no need to add hydrocarbons.
- the inventive Walk oils complex active emulsifiers for example Ci of citric-C8-22 -a l '(yl ester and / or organophosphate can alkoxy- profiled C8-22 "
- Wrought oils consisting of carboxylic acid partial esters are particularly preferred.
- the carboxylic acid partial esters to be used according to the invention in whale oils can be prepared in a manner known per se by esterification of linear and / or branched-chain, saturated and / or unsaturated C36 carboxylic acids with polyols having 3 to 22 OH groups in the presence of catalysts, for example sulfuric acid, p-toluenesulfonic acid or Caustic soda, with and without
- Solvents are produced at elevated temperatures (Drew Myers: "Surfactant Science and Technology", pages 69 to 71, VCH Verlagsgesellschaft mbH, Weinheim 1988; Fette, Seifen, Anstrich ⁇ 82, 93 (1980); J. Am. Oil Chem. Soc. 66, 153 (1989)).
- Suitable C5_36 carboxylic acids of natural and / or synthetic origin are, for example, caproic acid, caprylic acid, capric acid, lauric acid, myristic acid, palmitic acid, Ci5 ⁇ guerbetanoic acid, palmitoleic acid, stearic acid, 2-methylheptadecanoic acid, oleic acid, C20 ⁇ gueretic acid, behenic acid C32 ⁇ Guerbet Acid and / or C36 ⁇ Guerbet Acid.
- Guerbet acids can be prepared from fatty alcohols, which are converted into Guerbet alcohols in the presence of alkaline catalysts and then oxidized to the corresponding Guerbet acids (G.
- Saturated and / or unsaturated, naturally occurring carboxylic acids having 12 to 18 carbon atoms are preferred, and suitable polyols having 3 to 22 OH groups, preferably having 4 to 15 OH groups, optionally with ethylene oxide and / or propylene oxide alkoxylated are, for example, diglycerin, polyglycerols, pentaerytrite, dipentaerytrite and / or sugar alcohols, such as sorbitol and / or mannitol. Diglycerin and / or triglycerol are particularly preferred as " alcohol components.
- a further subject of the invention is a process for the fat greasing of fur skins, which is characterized in that fur skins are rolled at 30 to 50 ° C. with wool oils containing C6-36 "carboxylic acid partial esters of polyols with 3 to 22 OH groups, and then the the fur adhering to the fur skins is removed in a manner known per se by refining.
- Carboxylic acid partial esters are used in amounts of 50 to 400 g per fur skin.
- the wool greasing is carried out, for example, in a hammer or crank roller.
- the whale oils are either applied to the skins before drumming or added directly when drumming.
- the walking time is usually between 1 and 3 hours.
- the skins are thinly cut in a manner known per se - unless tanned, thinly cut fur skins are already used - and refined in a refining drum with sawdust which has been moistened with water and wetting agents in order to obtain carbon which adheres to the surface ⁇ to remove partial acid esters from the skins.
- the whale oils according to the invention are liquid and have a water absorption or emulsification capacity which corresponds to an above-average wool fat quality. Furthermore, most of the carboxylic acid partial esters already have such good penetration ability in the skins that there is no need to use hydrocarbons, for example mineral oils and / or alkylbenzenes. If the whale lubrication is carried out with whale oils which contain no or only small amounts of mineral oils, the solvent extraction before the refining process is unnecessary and the disposal problems of solvent-containing extraction residues are eliminated.
- Fur skins which have been greased with whale oils containing carboxylic acid partial esters are very soft and supple, have, compared to fur skins which have been treated with wool grease, a significantly better odor and very good lightfastness and heat transfer properties.
- whale oils according to the invention good usage properties can be achieved on all types of fur, for example rabbit fur, mink fur, muskrat and Nutria fur.
- Triglycerin esterified with 2.5 mol oleic acid Triglycerin esterified with 2.5 mol oleic acid.
- the fur skins treated with one of the whale oils A, B or C were refined in a refining drum with sawdust moistened with water and some wetting agent for one hour. Then the used sawdust was replaced by fresh, again sawdust moistened with water and wetting agent and cleaned for one hour. The used sawdust was then replaced by dry one and refined for another hour.
- the fur skins treated with the commercial whale oil were extracted in a closed system in a Böwe degreasing system in a closed system 2 x 3 minutes with perchlorethylene and then refined in a refining drum with sawdust which had been moistened with water and a little wetting agent for 2 hours.
- the fur skins treated with one of the whale oils A to D were placed in a chute drum and the sawdust adhering to the skins was removed within 30 minutes.
- the fur skins were refined with dry sawdust in a refining drum for one hour and then freed of adhering sawdust in a shaking drum within 30 minutes.
- the following table contains the assessment of the fur skins treated with the Walk oils A to D.
- the overall judgment is not an average of the individual values.
- the overall impression is assessed in the overall judgment.
Landscapes
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Fats And Perfumes (AREA)
- Lubricants (AREA)
- Treatment And Processing Of Natural Fur Or Leather (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Control Of Transmission Device (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Hybrid Electric Vehicles (AREA)
- Cosmetics (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3934902 | 1989-10-19 | ||
DE3934902A DE3934902A1 (de) | 1989-10-19 | 1989-10-19 | Carbonsaeurepartialesterhaltige walkoele |
PCT/EP1990/001702 WO1991005878A1 (de) | 1989-10-19 | 1990-10-10 | Carbonsäurepartialesterhaltige walköle |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0496745A1 true EP0496745A1 (de) | 1992-08-05 |
EP0496745B1 EP0496745B1 (de) | 1994-06-01 |
EP0496745B2 EP0496745B2 (de) | 1997-09-03 |
Family
ID=6391797
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP90914734A Expired - Lifetime EP0496745B2 (de) | 1989-10-19 | 1990-10-10 | Verfahren zur Walkfettung von Pelzfellen mit carbonsäurepartialesterhaltigen Walkölen |
Country Status (10)
Country | Link |
---|---|
EP (1) | EP0496745B2 (de) |
JP (1) | JPH05501269A (de) |
AR (1) | AR245227A1 (de) |
AT (1) | ATE106455T1 (de) |
DE (2) | DE3934902A1 (de) |
DK (1) | DK0496745T3 (de) |
ES (1) | ES2054374T5 (de) |
LT (1) | LT3683B (de) |
RU (1) | RU2066688C1 (de) |
WO (1) | WO1991005878A1 (de) |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1210636A (fr) * | 1957-03-20 | 1960-03-09 | Nouvelles compositions de coesters basiques d'un acide gras et du glycérol et de l'inositol et leur procédé de préparation | |
DE2231162A1 (de) * | 1972-06-26 | 1974-01-17 | Henkel & Cie Gmbh | Verfahren zur herstellung kaeltebestaendiger ester hoeherer fluessiger fettsaeuren mit mehrwertigen alkoholen |
US4762522A (en) * | 1987-03-02 | 1988-08-09 | Gaf Corporation | Agent for treatment of hides and pelts |
-
1989
- 1989-10-19 DE DE3934902A patent/DE3934902A1/de not_active Withdrawn
-
1990
- 1990-10-10 ES ES90914734T patent/ES2054374T5/es not_active Expired - Lifetime
- 1990-10-10 AT AT90914734T patent/ATE106455T1/de not_active IP Right Cessation
- 1990-10-10 JP JP2513616A patent/JPH05501269A/ja active Pending
- 1990-10-10 DE DE59005964T patent/DE59005964D1/de not_active Expired - Fee Related
- 1990-10-10 DK DK90914734.0T patent/DK0496745T3/da active
- 1990-10-10 EP EP90914734A patent/EP0496745B2/de not_active Expired - Lifetime
- 1990-10-10 RU SU905052182A patent/RU2066688C1/ru active
- 1990-10-10 WO PCT/EP1990/001702 patent/WO1991005878A1/de active IP Right Grant
- 1990-10-19 AR AR90318122A patent/AR245227A1/es active
-
1993
- 1993-11-05 LT LTIP1438A patent/LT3683B/lt not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO9105878A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP0496745B2 (de) | 1997-09-03 |
ATE106455T1 (de) | 1994-06-15 |
EP0496745B1 (de) | 1994-06-01 |
DE59005964D1 (de) | 1994-07-07 |
DE3934902A1 (de) | 1991-04-25 |
ES2054374T3 (es) | 1994-08-01 |
JPH05501269A (ja) | 1993-03-11 |
LTIP1438A (en) | 1995-05-25 |
ES2054374T5 (es) | 1997-10-16 |
DK0496745T3 (da) | 1994-09-26 |
WO1991005878A1 (de) | 1991-05-02 |
LT3683B (en) | 1996-01-25 |
AR245227A1 (es) | 1993-12-30 |
RU2066688C1 (ru) | 1996-09-20 |
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