CH624658A5 - Process for obtaining ester-type products for use in lubricating compositions - Google Patents
Process for obtaining ester-type products for use in lubricating compositions Download PDFInfo
- Publication number
- CH624658A5 CH624658A5 CH1472976A CH1472976A CH624658A5 CH 624658 A5 CH624658 A5 CH 624658A5 CH 1472976 A CH1472976 A CH 1472976A CH 1472976 A CH1472976 A CH 1472976A CH 624658 A5 CH624658 A5 CH 624658A5
- Authority
- CH
- Switzerland
- Prior art keywords
- acids
- viscosity
- product
- moles
- group
- Prior art date
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 17
- 230000001050 lubricating effect Effects 0.000 title claims abstract description 5
- 238000000034 method Methods 0.000 title claims description 17
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical compound ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 claims abstract description 7
- 150000002009 diols Chemical class 0.000 claims abstract description 7
- 150000002763 monocarboxylic acids Chemical class 0.000 claims abstract description 6
- 229920006395 saturated elastomer Polymers 0.000 claims abstract description 5
- 239000002253 acid Substances 0.000 claims description 28
- 150000007513 acids Chemical class 0.000 claims description 23
- SLCVBVWXLSEKPL-UHFFFAOYSA-N neopentyl glycol Chemical compound OCC(C)(C)CO SLCVBVWXLSEKPL-UHFFFAOYSA-N 0.000 claims description 10
- 125000004432 carbon atom Chemical group C* 0.000 claims description 5
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 claims description 2
- -1 alkyl radical Chemical class 0.000 claims description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims 1
- CBOIHMRHGLHBPB-UHFFFAOYSA-N hydroxymethyl Chemical compound O[CH2] CBOIHMRHGLHBPB-UHFFFAOYSA-N 0.000 claims 1
- 150000002148 esters Chemical class 0.000 abstract description 12
- 239000000314 lubricant Substances 0.000 abstract description 3
- 150000005846 sugar alcohols Polymers 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 12
- WWZKQHOCKIZLMA-UHFFFAOYSA-N octanoic acid Chemical compound CCCCCCCC(O)=O WWZKQHOCKIZLMA-UHFFFAOYSA-N 0.000 description 10
- 238000006243 chemical reaction Methods 0.000 description 6
- TWJNQYPJQDRXPH-UHFFFAOYSA-N 2-cyanobenzohydrazide Chemical compound NNC(=O)C1=CC=CC=C1C#N TWJNQYPJQDRXPH-UHFFFAOYSA-N 0.000 description 4
- 235000021360 Myristic acid Nutrition 0.000 description 4
- TUNFSRHWOTWDNC-UHFFFAOYSA-N Myristic acid Natural products CCCCCCCCCCCCCC(O)=O TUNFSRHWOTWDNC-UHFFFAOYSA-N 0.000 description 4
- 239000000654 additive Substances 0.000 description 4
- OBETXYAYXDNJHR-UHFFFAOYSA-N alpha-ethylcaproic acid Natural products CCCCC(CC)C(O)=O OBETXYAYXDNJHR-UHFFFAOYSA-N 0.000 description 4
- POULHZVOKOAJMA-UHFFFAOYSA-N dodecanoic acid Chemical compound CCCCCCCCCCCC(O)=O POULHZVOKOAJMA-UHFFFAOYSA-N 0.000 description 4
- 238000009472 formulation Methods 0.000 description 4
- FBUKVWPVBMHYJY-UHFFFAOYSA-N nonanoic acid Chemical compound CCCCCCCCC(O)=O FBUKVWPVBMHYJY-UHFFFAOYSA-N 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- 239000011707 mineral Substances 0.000 description 3
- 239000002480 mineral oil Substances 0.000 description 3
- IPCSVZSSVZVIGE-UHFFFAOYSA-N palmitic acid group Chemical group C(CCCCCCCCCCCCCCC)(=O)O IPCSVZSSVZVIGE-UHFFFAOYSA-N 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- AFVFQIVMOAPDHO-UHFFFAOYSA-N Methanesulfonic acid Chemical compound CS(O)(=O)=O AFVFQIVMOAPDHO-UHFFFAOYSA-N 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 230000032050 esterification Effects 0.000 description 2
- 238000005886 esterification reaction Methods 0.000 description 2
- 235000010446 mineral oil Nutrition 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 229920005862 polyol Polymers 0.000 description 2
- 150000003077 polyols Chemical class 0.000 description 2
- GYSCBCSGKXNZRH-UHFFFAOYSA-N 1-benzothiophene-2-carboxamide Chemical compound C1=CC=C2SC(C(=O)N)=CC2=C1 GYSCBCSGKXNZRH-UHFFFAOYSA-N 0.000 description 1
- GHVNFZFCNZKVNT-UHFFFAOYSA-N Decanoic acid Natural products CCCCCCCCCC(O)=O GHVNFZFCNZKVNT-UHFFFAOYSA-N 0.000 description 1
- 235000021314 Palmitic acid Nutrition 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 150000008107 benzenesulfonic acids Chemical class 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000011545 laboratory measurement Methods 0.000 description 1
- 229940098779 methanesulfonic acid Drugs 0.000 description 1
- WQEPLUUGTLDZJY-UHFFFAOYSA-N n-Pentadecanoic acid Natural products CCCCCCCCCCCCCCC(O)=O WQEPLUUGTLDZJY-UHFFFAOYSA-N 0.000 description 1
- 229940117969 neopentyl glycol Drugs 0.000 description 1
- 125000001971 neopentyl group Chemical group [H]C([*])([H])C(C([H])([H])[H])(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M111/00—Lubrication compositions characterised by the base-material being a mixture of two or more compounds covered by more than one of the main groups C10M101/00 - C10M109/00, each of these compounds being essential
- C10M111/02—Lubrication compositions characterised by the base-material being a mixture of two or more compounds covered by more than one of the main groups C10M101/00 - C10M109/00, each of these compounds being essential at least one of them being a non-macromolecular organic compound
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/08—Preparation of carboxylic acid esters by reacting carboxylic acids or symmetrical anhydrides with the hydroxy or O-metal group of organic compounds
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M105/00—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound
- C10M105/08—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound containing oxygen
- C10M105/32—Esters
- C10M105/38—Esters of polyhydroxy compounds
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/281—Esters of (cyclo)aliphatic monocarboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/282—Esters of (cyclo)aliphatic oolycarboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/283—Esters of polyhydroxy compounds
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/286—Esters of polymerised unsaturated acids
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/287—Partial esters
- C10M2207/289—Partial esters containing free hydroxy groups
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/30—Complex esters, i.e. compounds containing at leasst three esterified carboxyl groups and derived from the combination of at least three different types of the following five types of compounds: monohydroxyl compounds, polyhydroxy xompounds, monocarboxylic acids, polycarboxylic acids or hydroxy carboxylic acids
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Lubricants (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT30195/75A IT1050335B (it) | 1975-12-11 | 1975-12-11 | Esteri organici da impiegare in composizioni lubrificanti |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH624658A5 true CH624658A5 (en) | 1981-08-14 |
Family
ID=11229306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH1472976A CH624658A5 (en) | 1975-12-11 | 1976-11-23 | Process for obtaining ester-type products for use in lubricating compositions |
Country Status (24)
| Country | Link |
|---|---|
| US (1) | US4317780A (enExample) |
| AR (1) | AR229227A1 (enExample) |
| AT (1) | AT356791B (enExample) |
| AU (1) | AU513618B2 (enExample) |
| BE (1) | BE849292A (enExample) |
| CA (1) | CA1091693A (enExample) |
| CH (1) | CH624658A5 (enExample) |
| CS (1) | CS223820B2 (enExample) |
| DD (1) | DD128662A5 (enExample) |
| DE (1) | DE2656079C2 (enExample) |
| DK (1) | DK147285C (enExample) |
| ES (1) | ES454554A1 (enExample) |
| FR (1) | FR2334744A1 (enExample) |
| GB (1) | GB1561116A (enExample) |
| HU (1) | HU179785B (enExample) |
| IT (1) | IT1050335B (enExample) |
| LU (1) | LU76352A1 (enExample) |
| MX (1) | MX4906E (enExample) |
| NL (1) | NL180413B (enExample) |
| NO (1) | NO148371C (enExample) |
| PL (1) | PL101733B1 (enExample) |
| RO (1) | RO69919A (enExample) |
| SE (1) | SE425095B (enExample) |
| SU (1) | SU858558A3 (enExample) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2498623A1 (fr) * | 1981-01-27 | 1982-07-30 | Inst Francais Du Petrole | Compositions lubrifiantes a base d'esters de neopentylpolyols et leur utilisation pour la lubrification des turbomachines |
| NL8102759A (nl) * | 1981-06-09 | 1983-01-03 | Unilever Nv | Estersmeermiddelen. |
| DK653488D0 (da) * | 1988-11-23 | 1988-11-23 | Esti Kemi Aps | Smoeremiddel |
| US5169665A (en) * | 1990-04-17 | 1992-12-08 | Nabisco, Inc. | Tris-hydroxymethyl alkane esters as low calorie fat mimetics |
| US4927658A (en) * | 1989-02-16 | 1990-05-22 | Nabisco Brands, Inc. | Tris-hydroxymethyl alkane esters as low calorie fat mimetics |
| US4927659A (en) * | 1989-02-16 | 1990-05-22 | Nabisco Brands, Inc. | Tris-hydroxymethyl lower alkane esters as fat mimetics |
| CA2015640A1 (en) * | 1989-08-08 | 1991-02-08 | Lawrence P. Klemann | Process for preparing neoalkyl triol triesters |
| DE4128646A1 (de) * | 1991-08-29 | 1993-03-04 | Henkel Kgaa | Estermischungen von stark verzweigten carbonsaeuren |
| DE4214653A1 (de) * | 1992-05-02 | 1993-11-04 | Henkel Kgaa | Motorengrundoele mit verbesserter dichtungsvertraeglichkeit |
| AU674024B2 (en) * | 1992-08-28 | 1996-12-05 | Henkel Corporation | Biodegradable two-cycle engine oil compositions and ester base stocks |
| US6656888B1 (en) | 1992-08-28 | 2003-12-02 | Cognis Corporation | Biodegradable two-cycle engine oil compositions, grease compositions, and ester base stocks use therein |
| US6693064B2 (en) † | 1996-04-16 | 2004-02-17 | Unichema Chemie B.V. | Hydraulic fluids |
| EP1529828A1 (en) * | 2003-10-31 | 2005-05-11 | Malaysian Palm Oil Board | Lubricant base oil of palm fatty acid origin |
| US20230232829A1 (en) * | 2018-01-04 | 2023-07-27 | Dow Argo Sciences LLC | High-load haloxyfop ester compositions |
| JP2021123632A (ja) * | 2020-02-04 | 2021-08-30 | 花王株式会社 | 金属加工油用基油、及び不水溶性金属加工油組成物 |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB951939A (en) * | 1959-03-12 | 1964-03-11 | Heyden Newport Chemical Corp | Mixed esters of 1,1,1-trimethylolethane and lubricant compositions containing them |
| DE1644933A1 (de) * | 1968-01-25 | 1971-06-03 | Mobil Oil Corp | Schmiermittel |
| DE1944547A1 (de) * | 1968-09-06 | 1970-03-26 | Mobil Oil Corp | Schmiermittelzusammensetzung |
| DE1964628A1 (de) * | 1968-12-24 | 1970-06-25 | Ethyl Corp | Organische Estergemische,Verfahren zu ihrer Herstellung und ihre Verwendung als Schmiermittel |
| FR2051665A1 (enExample) * | 1969-07-10 | 1971-04-09 | Ethyl Corp | |
| US3670013A (en) * | 1969-10-16 | 1972-06-13 | Hercules Inc | Synthesis of partial esters of certain poly(neopentyl polyols) and aliphatic monocarboxylic acids |
| GB1441918A (en) * | 1972-07-20 | 1976-07-07 | Unilever Emery | Ester mixtures |
| DE2302918C2 (de) * | 1973-01-22 | 1982-04-08 | Henkel KGaA, 4000 Düsseldorf | Neue Esteröle, sowie deren Verwendung in Schmiermitteln und Hydraulikflüssigkeiten |
| IT991051B (it) * | 1973-07-09 | 1975-07-30 | Snam Progetti | Esteri organici per composizioni lubrificanti |
| FR2254633B1 (enExample) * | 1973-12-12 | 1976-10-08 | Inst Francais Du Petrole | |
| IT1010487B (it) * | 1974-05-08 | 1977-01-10 | Snam Progetti | Esteri come componenti di lubrifi canti |
-
1975
- 1975-12-11 IT IT30195/75A patent/IT1050335B/it active
-
1976
- 1976-10-15 AU AU18717/76A patent/AU513618B2/en not_active Expired
- 1976-10-21 CS CS766793A patent/CS223820B2/cs unknown
- 1976-10-21 CA CA264,021A patent/CA1091693A/en not_active Expired
- 1976-10-26 RO RO7688230A patent/RO69919A/ro unknown
- 1976-11-04 DK DK499076A patent/DK147285C/da active
- 1976-11-08 FR FR7633631A patent/FR2334744A1/fr active Granted
- 1976-11-23 CH CH1472976A patent/CH624658A5/it not_active IP Right Cessation
- 1976-12-01 NL NLAANVRAGE7613394,A patent/NL180413B/xx not_active IP Right Cessation
- 1976-12-06 MX MX76100847U patent/MX4906E/es unknown
- 1976-12-06 GB GB50858/76A patent/GB1561116A/en not_active Expired
- 1976-12-07 PL PL1976194212A patent/PL101733B1/pl unknown
- 1976-12-08 DD DD7600196198A patent/DD128662A5/xx unknown
- 1976-12-08 NO NO764177A patent/NO148371C/no unknown
- 1976-12-09 LU LU76352A patent/LU76352A1/xx unknown
- 1976-12-10 ES ES454554A patent/ES454554A1/es not_active Expired
- 1976-12-10 DE DE2656079A patent/DE2656079C2/de not_active Expired
- 1976-12-10 HU HU76SA3000A patent/HU179785B/hu unknown
- 1976-12-10 SE SE7613960A patent/SE425095B/xx not_active IP Right Cessation
- 1976-12-10 AR AR265805A patent/AR229227A1/es active
- 1976-12-10 AT AT918776A patent/AT356791B/de not_active IP Right Cessation
- 1976-12-10 SU SU762434654A patent/SU858558A3/ru active
- 1976-12-10 BE BE173162A patent/BE849292A/xx not_active IP Right Cessation
-
1980
- 1980-01-07 US US06/110,189 patent/US4317780A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| NO764177L (enExample) | 1977-06-14 |
| ES454554A1 (es) | 1977-12-16 |
| FR2334744B1 (enExample) | 1978-12-22 |
| GB1561116A (en) | 1980-02-13 |
| PL101733B1 (pl) | 1979-01-31 |
| DE2656079C2 (de) | 1985-09-19 |
| NO148371C (no) | 1983-09-28 |
| NO148371B (no) | 1983-06-20 |
| AT356791B (de) | 1980-05-27 |
| SU858558A3 (ru) | 1981-08-23 |
| NL7613394A (nl) | 1977-06-14 |
| DE2656079A1 (de) | 1977-06-23 |
| BE849292A (fr) | 1977-06-10 |
| CS223820B2 (en) | 1983-11-25 |
| HU179785B (en) | 1982-12-28 |
| NL180413B (nl) | 1986-09-16 |
| AR229227A1 (es) | 1983-07-15 |
| RO69919A (ro) | 1982-02-01 |
| FR2334744A1 (fr) | 1977-07-08 |
| SE7613960L (sv) | 1977-06-12 |
| LU76352A1 (enExample) | 1977-06-09 |
| CA1091693A (en) | 1980-12-16 |
| DK147285B (da) | 1984-06-04 |
| DK147285C (da) | 1984-12-24 |
| ATA918776A (de) | 1979-10-15 |
| DK499076A (da) | 1977-06-12 |
| MX4906E (es) | 1982-12-15 |
| SE425095B (sv) | 1982-08-30 |
| DD128662A5 (de) | 1977-11-30 |
| AU1871776A (en) | 1978-04-20 |
| IT1050335B (it) | 1981-03-10 |
| AU513618B2 (en) | 1980-12-11 |
| US4317780A (en) | 1982-03-02 |
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