IT1085663B - Procedimento per la polimerizzazione e copolimerizzazione di diolefine e mezzi adatti allo scopo - Google Patents
Procedimento per la polimerizzazione e copolimerizzazione di diolefine e mezzi adatti allo scopoInfo
- Publication number
- IT1085663B IT1085663B IT2637777A IT2637777A IT1085663B IT 1085663 B IT1085663 B IT 1085663B IT 2637777 A IT2637777 A IT 2637777A IT 2637777 A IT2637777 A IT 2637777A IT 1085663 B IT1085663 B IT 1085663B
- Authority
- IT
- Italy
- Prior art keywords
- polymerisation
- halogen
- hydrocarbon group
- predominantly
- olefin
- Prior art date
Links
- 229910052747 lanthanoid Inorganic materials 0.000 title abstract 3
- 150000002602 lanthanoids Chemical class 0.000 title abstract 3
- 229920000642 polymer Polymers 0.000 title abstract 3
- 239000002841 Lewis acid Substances 0.000 title abstract 2
- 239000003054 catalyst Substances 0.000 title abstract 2
- 150000007517 lewis acids Chemical class 0.000 title abstract 2
- 125000001931 aliphatic group Chemical group 0.000 title 1
- 150000001336 alkenes Chemical class 0.000 title 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title 1
- 229910052782 aluminium Inorganic materials 0.000 title 1
- 239000004411 aluminium Substances 0.000 title 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 title 1
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 abstract 4
- 229910052736 halogen Inorganic materials 0.000 abstract 4
- 150000002367 halogens Chemical class 0.000 abstract 4
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 abstract 2
- PMJHHCWVYXUKFD-SNAWJCMRSA-N (E)-1,3-pentadiene Chemical compound C\C=C\C=C PMJHHCWVYXUKFD-SNAWJCMRSA-N 0.000 abstract 1
- 125000003545 alkoxy group Chemical group 0.000 abstract 1
- 150000001993 dienes Chemical class 0.000 abstract 1
- 239000003446 ligand Substances 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 229910052757 nitrogen Inorganic materials 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
- 229910052698 phosphorus Inorganic materials 0.000 abstract 1
- PMJHHCWVYXUKFD-UHFFFAOYSA-N piperylene Natural products CC=CC=C PMJHHCWVYXUKFD-UHFFFAOYSA-N 0.000 abstract 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 abstract 1
- 230000003252 repetitive effect Effects 0.000 abstract 1
- 229910052717 sulfur Inorganic materials 0.000 abstract 1
- 125000005309 thioalkoxy group Chemical group 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F36/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds
- C08F36/02—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds
- C08F36/04—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Polymerization Catalysts (AREA)
Priority Applications (25)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT2637777A IT1085663B (it) | 1977-08-01 | 1977-08-01 | Procedimento per la polimerizzazione e copolimerizzazione di diolefine e mezzi adatti allo scopo |
| CA308,070A CA1113915A (en) | 1977-08-01 | 1978-07-25 | Polymerizing and copolymerizing diolefines, and means therefor |
| AU38319/78A AU519419B2 (en) | 1977-08-01 | 1978-07-25 | Polymerisation catalyst |
| IN819/CAL/78A IN150161B (it) | 1977-08-01 | 1978-07-27 | |
| GB7831302A GB2002003B (en) | 1977-08-01 | 1978-07-27 | Catalyst system for use in copolymerising diolefins |
| ES472634A ES472634A1 (es) | 1977-08-01 | 1978-07-28 | Procedimiento para la polimerizacion y copolimerizacion de diolefinas |
| AR273128A AR223650A1 (es) | 1977-08-01 | 1978-07-28 | Procedimiento para la polimerizacion y copolimerizacion de diolefinas y composicion catalitica para tal procedimiento |
| DD78207010A DD137592A5 (de) | 1977-08-01 | 1978-07-28 | Verfahren zur polymerisation und copolymerisation von diolefinen und katalysator hierfuer |
| FR7822391A FR2399447A1 (fr) | 1977-08-01 | 1978-07-28 | Procede pour la polymerisation et la copolymerisation de diolefine et moyens utilises pour ce procede |
| ZA00784294A ZA784294B (en) | 1977-08-01 | 1978-07-28 | Polymerizing and copolymerizing diolefines and means therefor |
| PT68360A PT68360A (en) | 1977-08-01 | 1978-07-28 | Process for polymerizing and copolymerizing diolefines |
| EG474/78A EG13467A (en) | 1977-08-01 | 1978-07-30 | Polymerizing and copolymerizing diolefines and means therefor |
| IE1551/78A IE47219B1 (en) | 1977-08-01 | 1978-07-31 | Catalyst system for use in copolymerising diolefins |
| YU1853/78A YU39510B (en) | 1977-08-01 | 1978-07-31 | Process for the polymerization and copolymerization of aliphatic conjugated diolefines |
| MX174370A MX151421A (es) | 1977-08-01 | 1978-07-31 | Procedimiento mejorado para la polimerizacion y copolimerizacion de diolefinas |
| PL20875678A PL208756A1 (pl) | 1977-08-01 | 1978-07-31 | Sposob prowadzenia polimeryzacji albo kopolimeryzacji dwuolefin i uklad katalityczny do prowadzenia polimeryzacji albo kopolimeryzacji dwuolefin |
| TR20144A TR20144A (tr) | 1977-08-01 | 1978-08-01 | Diolefinlerin polimerizasyon ve kopolimerizasyonu icin yoentem ve bu amaca uygun vasitalar |
| JP9324178A JPS5440890A (en) | 1977-08-01 | 1978-08-01 | Catalyst composition and diolefin polymerization using it |
| BE78189640A BE869438A (fr) | 1977-08-01 | 1978-08-01 | Procede pour la polymerisation et la copolymerisation de diolefines |
| DE2833721A DE2833721C2 (de) | 1977-08-01 | 1978-08-01 | Verfahren zur Polymerisation von 1,3-Butadien, 1,3-Pentadien, Isopren oder 2,3-Dimethylbutadien oder zur Copolymerisation von Gemischen dieser aliphatischen konjugierten Diolefine |
| CS785060A CS209535B2 (en) | 1977-08-01 | 1978-08-01 | Method of polymerization and copolymerization of diolefins |
| NLAANVRAGE7808104,A NL186449C (nl) | 1977-08-01 | 1978-08-01 | Werkwijze voor het polymeriseren en copolymeriseren van alkadienen en daarvoor geschikt katalysatorsysteem. |
| CS781135A CS209536B2 (en) | 1977-08-01 | 1978-08-01 | Catalytic system for polymerization and copolymerization of diolefins |
| BR7804950A BR7804950A (pt) | 1977-08-01 | 1978-08-01 | Processo catalitico para a polimerizacao e copolimerizacao de diolefinas |
| US06/283,615 US4429089A (en) | 1977-08-01 | 1981-07-15 | Polymerizing and copolymerizing diolefines, and means therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT2637777A IT1085663B (it) | 1977-08-01 | 1977-08-01 | Procedimento per la polimerizzazione e copolimerizzazione di diolefine e mezzi adatti allo scopo |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IT1085663B true IT1085663B (it) | 1985-05-28 |
Family
ID=11219355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT2637777A IT1085663B (it) | 1977-08-01 | 1977-08-01 | Procedimento per la polimerizzazione e copolimerizzazione di diolefine e mezzi adatti allo scopo |
Country Status (24)
| Country | Link |
|---|---|
| US (1) | US4429089A (it) |
| JP (1) | JPS5440890A (it) |
| AR (1) | AR223650A1 (it) |
| AU (1) | AU519419B2 (it) |
| BE (1) | BE869438A (it) |
| BR (1) | BR7804950A (it) |
| CA (1) | CA1113915A (it) |
| CS (2) | CS209535B2 (it) |
| DD (1) | DD137592A5 (it) |
| DE (1) | DE2833721C2 (it) |
| EG (1) | EG13467A (it) |
| ES (1) | ES472634A1 (it) |
| FR (1) | FR2399447A1 (it) |
| GB (1) | GB2002003B (it) |
| IE (1) | IE47219B1 (it) |
| IN (1) | IN150161B (it) |
| IT (1) | IT1085663B (it) |
| MX (1) | MX151421A (it) |
| NL (1) | NL186449C (it) |
| PL (1) | PL208756A1 (it) |
| PT (1) | PT68360A (it) |
| TR (1) | TR20144A (it) |
| YU (1) | YU39510B (it) |
| ZA (1) | ZA784294B (it) |
Families Citing this family (51)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1223396A (en) * | 1981-06-29 | 1987-06-23 | Tooru Shibata | Process for producing conjugated diene polymer |
| IT1140452B (it) * | 1981-09-25 | 1986-09-24 | Anic Spa | Procedimento per la polimerizzazione di diolefine coniugate e mezzi adatti allo scopo |
| CA1212932A (en) * | 1982-04-01 | 1986-10-21 | Derek K. Jenkins | Polymerisation of conjugated dienes |
| JPS5945337A (ja) * | 1982-09-07 | 1984-03-14 | Japan Synthetic Rubber Co Ltd | 生強度の改良されたポリブタジエンゴム組成物 |
| JPS6084338A (ja) * | 1983-10-14 | 1985-05-13 | Japan Synthetic Rubber Co Ltd | 新規なジエン系ポリマ−組成物 |
| JPS60108410A (ja) * | 1983-11-18 | 1985-06-13 | Japan Synthetic Rubber Co Ltd | 熱可塑性樹脂の製造方法 |
| US4699962A (en) * | 1984-01-30 | 1987-10-13 | Phillips Petroleum Company | Olefin polymerization |
| US4791086A (en) * | 1984-01-30 | 1988-12-13 | Phillips Petroleum Company | Olefin polymerization |
| US4575538A (en) * | 1984-12-20 | 1986-03-11 | Phillips Petroleum Company | Olefin polymerization |
| JPS61128971U (it) * | 1985-01-31 | 1986-08-13 | ||
| IT1186747B (it) * | 1985-07-01 | 1987-12-16 | Enichem Elastomers | Procedimento migliorato per la polimerizzazione o copolimerizzazione del butadiene |
| DE3877859T2 (de) * | 1987-08-19 | 1993-09-02 | Asahi Chemical Ind | Praepolymerisationsverfahren zur herstellung einer loesung einer konjugierten dienverbindung. |
| US5238891A (en) * | 1989-06-15 | 1993-08-24 | Phillips Petroleum Company | Olefin polymerization catalyst and process |
| US5403904A (en) * | 1993-05-27 | 1995-04-04 | Amoco Corporation | Process for preparation of telechelic difunctional unsaturated oligomers or polymers by acyclic olefin metathesis |
| US5519101A (en) * | 1993-05-27 | 1996-05-21 | Amoco Corporation | Process for preparation of unsaturated oligomers or polymers by acyclic olefin metathesis |
| US5512635A (en) * | 1993-05-27 | 1996-04-30 | Amoco Corporation | Process for preparing linear monofunctional and telechelic difunctional polymers and compositions obtained thereby |
| US5405815A (en) * | 1993-06-17 | 1995-04-11 | The Goodyear Tire & Rubber Company | Process for preparing a catalyst system useful in the synthesis of isoprene-butadiene rubber |
| DE4334045A1 (de) * | 1993-10-06 | 1995-04-13 | Bayer Ag | Katalysator, dessen Herstellung und Verwendung zur Gasphasenpolymerisation von konjugierten Dienen |
| US5914377A (en) * | 1995-04-04 | 1999-06-22 | Bayer Ag | Method for the production of diene rubbers in the gas phase |
| RU2109753C1 (ru) * | 1996-02-14 | 1998-04-27 | Акционерное общество открытого типа "Ефремовский завод синтетического каучука" | Способ получения диенового каучука |
| US6018007A (en) * | 1997-09-22 | 2000-01-25 | Bridgestone Corporation | Synthesis of 1,4-trans-polybutadiene using a lanthanide organic acid salt catalyst |
| DE19746266A1 (de) | 1997-10-20 | 1999-04-22 | Bayer Ag | Katalysator auf Basis von Verbindungen der seltenen Erdmetalle für die Polymerisation von ungesättigten organischen Verbindungen |
| US6197713B1 (en) | 1997-12-19 | 2001-03-06 | Bridgestone Corporation | Use of Lewis acids for the breakdown of gelatinous rare earth compounds in hydrocarbon solutions |
| US6441107B1 (en) * | 1998-12-18 | 2002-08-27 | Union Carbide Chemicals & Plastics Technology Corporation | Molecular weight control of gas phase polymerized polybutadiene when using a rare earth catalyst |
| US6767927B1 (en) * | 1999-04-26 | 2004-07-27 | Rhodia Rare Earths Inc. | Synthesis of stable solutions of rare earth tris (organophosphate) in hydrocarbon solvents |
| DE19919870A1 (de) * | 1999-04-30 | 2000-11-02 | Bayer Ag | Verfahren zur Suspensions-Polymerisation von konjugierten Dienen |
| DE10115106A1 (de) | 2001-03-27 | 2002-10-10 | Bayer Ag | Blockcopolymerisat auf Basis von konjugierten Diolefinen und polaren Monomeren |
| US9226876B2 (en) * | 2001-10-19 | 2016-01-05 | The Goodyear Tire & Rubber Company | Rubber for baby bottle nipples, pacifiers, and syringe plungers |
| US6699813B2 (en) | 2001-11-07 | 2004-03-02 | Bridgestone Corporation | Lanthanide-based catalyst composition for the manufacture of polydienes |
| US6780948B2 (en) | 2002-03-28 | 2004-08-24 | The Goodyear Tire & Rubber Company | Synthesis of polyisoprene with neodymium catalyst |
| US7586548B2 (en) * | 2002-12-02 | 2009-09-08 | Sony Corporation | Stand-by power supply shutdown at power on |
| KR100553249B1 (ko) | 2003-05-15 | 2006-02-20 | 금호석유화학 주식회사 | 고 1,4-시스 폴리부타디엔-폴리우레탄 공중합체 및 그 제조방법 |
| JP4467258B2 (ja) * | 2003-06-25 | 2010-05-26 | 株式会社ブリヂストン | ブタジエン系重合体及びその製造方法、並びにそれを用いたゴム組成物及びタイヤ |
| JP4651921B2 (ja) * | 2003-07-17 | 2011-03-16 | 株式会社ブリヂストン | 空気入りタイヤ |
| US7008899B2 (en) * | 2003-08-11 | 2006-03-07 | Bridgestone Corporation | Lanthanide-based catalyst composition for producing cis-1,4-polydienes |
| US7094849B2 (en) * | 2003-12-15 | 2006-08-22 | Bridgestone Corporation | Bulk polymerization process for producing polydienes |
| US7091150B2 (en) * | 2003-12-19 | 2006-08-15 | The Goodyear Tire & Rubber Company | Synthetic polyisoprene rubber |
| WO2007021215A1 (en) | 2005-08-12 | 2007-02-22 | Otkrytoe Aktsionernoe Obschestvo 'efremovsky Zavod Sinteticheskogo Kauchuka' | Method for producing cis-1,4 diene rubber, catalyst, rubber |
| US8153723B2 (en) * | 2005-12-05 | 2012-04-10 | Jsr Corporation | Process for producing conjugated diene polymer, conjugated diene polymer, and rubber composition |
| RU2464280C2 (ru) * | 2006-12-27 | 2012-10-20 | ДжейЭсЭр КОРПОРЕЙШН | Способ получения модифицированного сопряженного диенового полимера, модифицированный сопряженный диеновый полимер и резиновая композиция |
| EP2160414B1 (en) * | 2007-06-18 | 2017-05-10 | Bridgestone Corporation | Polymers functionalized with halosilanes containing an amino group |
| KR100970767B1 (ko) | 2007-12-12 | 2010-07-16 | 금호석유화학 주식회사 | 방향족 유기황화합물로 기능화된 1,4-시스 폴리부타디엔 |
| US7825201B2 (en) * | 2007-12-31 | 2010-11-02 | Bridgestone Corporation | Process for producing polydienes |
| US7741418B2 (en) * | 2007-12-31 | 2010-06-22 | Bridgestone Corporation | Process for producing polydienes |
| US8623975B2 (en) | 2009-06-24 | 2014-01-07 | Bridgestone Corporation | Process for producing polydienes |
| KR101194401B1 (ko) * | 2009-12-09 | 2012-10-25 | 금호석유화학 주식회사 | 골프공 코어의 제조용 방향족 유기황화합물로 기능화된 1,4-시스 폴리부타디엔 |
| RU2422468C1 (ru) * | 2009-12-30 | 2011-06-27 | Открытое акционерное общество "Нижнекамскнефтехим" | Способ получения полимеров и сополимеров сопряженных диенов (варианты) |
| JP6204646B2 (ja) * | 2012-09-19 | 2017-09-27 | 旭化成株式会社 | 変性共役ジエン系重合体の製造方法及び変性共役ジエン系重合体、並びに変性共役ジエン系重合体組成物 |
| MY181919A (en) * | 2013-03-13 | 2021-01-14 | Ube Industries | Catalyst for conjugated diene polymerization, conjugated diene polymer and modified conjugated diene polymer produced using the same, production methods thereof, rubber composition for tire, and rubber composition for rubber belt |
| US11767388B1 (en) | 2019-09-18 | 2023-09-26 | The Goodyear Tire & Rubber Company | Silicon-functionalized rubber |
| EP3838932B1 (en) | 2019-12-20 | 2022-08-10 | The Goodyear Tire & Rubber Company | Synthesis of isoprene-butadiene copolymer rubbers |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB865248A (en) | 1956-12-28 | 1961-04-12 | Hoechst Ag | Process for the polymerisation of olefines |
| US3394156A (en) | 1960-03-07 | 1968-07-23 | Monsanto Co | Titanium amide borohydrides and chlorides |
| US3297667A (en) | 1963-02-28 | 1967-01-10 | Union Carbide Corp | Production of cis-1, 4-polydienes by polymerization of 1, 3-dienes |
| DE1257431B (de) * | 1965-02-03 | 1967-12-28 | Snam Spa | Verfahren zur Polymerisation von Butadien |
| US3541063A (en) * | 1967-12-29 | 1970-11-17 | Goodyear Tire & Rubber | Process for the polymerization of diolefins with a catalyst comprising alkylaluminum compounds,group iii-b organo metal compounds and organoaluminum fluoride compounds |
| US3641188A (en) * | 1968-05-08 | 1972-02-08 | Atlantic Richfield Co | Process for polymerizing olefins |
| GB1294725A (en) * | 1969-03-27 | 1972-11-01 | Goodyear Tire & Rubber | Polymerization of diolefins |
| CA977097A (en) | 1969-11-07 | 1975-10-28 | Snamprogetti S.P.A. | ETHYLENE AND .alpha.-OLEFINS COPOLYMERS AND PROCESS FOR OBTAINING SAME |
| US3657205A (en) * | 1970-09-03 | 1972-04-18 | Goodyear Tire & Rubber | Preparation of high 1 4-polypentadienes |
| US3676411A (en) | 1970-12-17 | 1972-07-11 | Goodyear Tire & Rubber | Ternary catalyst systems for the polymerization of conjugated diolefins |
| IT971308B (it) | 1972-11-29 | 1974-04-30 | Snam Progetti | Processo per la polimerizzazion e di composti insaturi |
-
1977
- 1977-08-01 IT IT2637777A patent/IT1085663B/it active
-
1978
- 1978-07-25 AU AU38319/78A patent/AU519419B2/en not_active Expired
- 1978-07-25 CA CA308,070A patent/CA1113915A/en not_active Expired
- 1978-07-27 GB GB7831302A patent/GB2002003B/en not_active Expired
- 1978-07-27 IN IN819/CAL/78A patent/IN150161B/en unknown
- 1978-07-28 PT PT68360A patent/PT68360A/pt unknown
- 1978-07-28 AR AR273128A patent/AR223650A1/es active
- 1978-07-28 FR FR7822391A patent/FR2399447A1/fr active Granted
- 1978-07-28 DD DD78207010A patent/DD137592A5/xx not_active IP Right Cessation
- 1978-07-28 ZA ZA00784294A patent/ZA784294B/xx unknown
- 1978-07-28 ES ES472634A patent/ES472634A1/es not_active Expired
- 1978-07-30 EG EG474/78A patent/EG13467A/xx active
- 1978-07-31 IE IE1551/78A patent/IE47219B1/en not_active IP Right Cessation
- 1978-07-31 MX MX174370A patent/MX151421A/es unknown
- 1978-07-31 PL PL20875678A patent/PL208756A1/xx unknown
- 1978-07-31 YU YU1853/78A patent/YU39510B/xx unknown
- 1978-08-01 JP JP9324178A patent/JPS5440890A/ja active Granted
- 1978-08-01 NL NLAANVRAGE7808104,A patent/NL186449C/xx not_active IP Right Cessation
- 1978-08-01 TR TR20144A patent/TR20144A/xx unknown
- 1978-08-01 CS CS785060A patent/CS209535B2/cs unknown
- 1978-08-01 CS CS781135A patent/CS209536B2/cs unknown
- 1978-08-01 DE DE2833721A patent/DE2833721C2/de not_active Expired
- 1978-08-01 BR BR7804950A patent/BR7804950A/pt unknown
- 1978-08-01 BE BE78189640A patent/BE869438A/xx not_active IP Right Cessation
-
1981
- 1981-07-15 US US06/283,615 patent/US4429089A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| EG13467A (en) | 1981-12-31 |
| TR20144A (tr) | 1980-09-26 |
| JPS6213363B2 (it) | 1987-03-26 |
| US4429089A (en) | 1984-01-31 |
| CS209536B2 (en) | 1981-12-31 |
| ES472634A1 (es) | 1979-02-16 |
| AR223650A1 (es) | 1981-09-15 |
| NL186449C (nl) | 1990-12-03 |
| IE47219B1 (en) | 1984-01-25 |
| DD137592A5 (de) | 1979-09-12 |
| NL186449B (nl) | 1990-07-02 |
| JPS5440890A (en) | 1979-03-31 |
| YU185378A (en) | 1982-10-31 |
| NL7808104A (nl) | 1979-02-05 |
| CS209535B2 (en) | 1981-12-31 |
| AU519419B2 (en) | 1981-12-03 |
| BR7804950A (pt) | 1979-03-13 |
| MX151421A (es) | 1984-11-15 |
| DE2833721A1 (de) | 1979-02-08 |
| PT68360A (en) | 1978-08-01 |
| CA1113915A (en) | 1981-12-08 |
| PL208756A1 (pl) | 1979-03-12 |
| YU39510B (en) | 1984-12-31 |
| GB2002003A (en) | 1979-02-14 |
| FR2399447A1 (fr) | 1979-03-02 |
| BE869438A (fr) | 1979-02-01 |
| AU3831978A (en) | 1980-01-31 |
| IN150161B (it) | 1982-08-07 |
| GB2002003B (en) | 1982-02-24 |
| ZA784294B (en) | 1979-07-25 |
| DE2833721C2 (de) | 1985-02-21 |
| IE781551L (en) | 1979-02-01 |
| FR2399447B1 (it) | 1982-06-18 |
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