BE836355A - Agents de constraste radiographique non ioniques facilement solubles dans l'eau et procede pour les preparer - Google Patents

Agents de constraste radiographique non ioniques facilement solubles dans l'eau et procede pour les preparer

Info

Publication number
BE836355A
BE836355A BE162511A BE162511A BE836355A BE 836355 A BE836355 A BE 836355A BE 162511 A BE162511 A BE 162511A BE 162511 A BE162511 A BE 162511A BE 836355 A BE836355 A BE 836355A
Authority
BE
Belgium
Prior art keywords
radiographic
preparing
ionic
soluble non
easily water
Prior art date
Application number
BE162511A
Other languages
English (en)
French (fr)
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Publication of BE836355A publication Critical patent/BE836355A/xx

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K49/00—Preparations for testing in vivo
    • A61K49/04—X-ray contrast preparations
    • A61K49/0433—X-ray contrast preparations containing an organic halogenated X-ray contrast-enhancing agent
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D319/00—Heterocyclic compounds containing six-membered rings having two oxygen atoms as the only ring hetero atoms
    • C07D319/04—1,3-Dioxanes; Hydrogenated 1,3-dioxanes
    • C07D319/06—1,3-Dioxanes; Hydrogenated 1,3-dioxanes not condensed with other rings

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
BE162511A 1974-12-13 1975-12-05 Agents de constraste radiographique non ioniques facilement solubles dans l'eau et procede pour les preparer BE836355A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1658874A CH608189A5 (en:Method) 1974-12-13 1974-12-13

Publications (1)

Publication Number Publication Date
BE836355A true BE836355A (fr) 1976-06-08

Family

ID=4418593

Family Applications (1)

Application Number Title Priority Date Filing Date
BE162511A BE836355A (fr) 1974-12-13 1975-12-05 Agents de constraste radiographique non ioniques facilement solubles dans l'eau et procede pour les preparer

Country Status (29)

Country Link
US (1) US4001323A (en:Method)
JP (1) JPS5182236A (en:Method)
AR (1) AR211853A1 (en:Method)
AT (2) AT340582B (en:Method)
AU (1) AU475785B2 (en:Method)
BE (1) BE836355A (en:Method)
BG (1) BG26512A3 (en:Method)
CA (1) CA1046082A (en:Method)
CH (1) CH608189A5 (en:Method)
CS (1) CS194234B2 (en:Method)
DD (1) DD122475A5 (en:Method)
DK (1) DK147336C (en:Method)
ES (1) ES442651A1 (en:Method)
FR (1) FR2293919A1 (en:Method)
GB (1) GB1472050A (en:Method)
HU (1) HU170216B (en:Method)
IE (1) IE42620B1 (en:Method)
IL (1) IL48484A (en:Method)
IN (1) IN142089B (en:Method)
MX (1) MX3174E (en:Method)
NL (1) NL157295B (en:Method)
NO (1) NO145096C (en:Method)
PH (1) PH12321A (en:Method)
PL (1) PL96082B1 (en:Method)
RO (1) RO69615A (en:Method)
SE (1) SE409993B (en:Method)
SU (1) SU628813A3 (en:Method)
YU (2) YU40448B (en:Method)
ZA (1) ZA757222B (en:Method)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2354316A1 (fr) * 1976-06-11 1978-01-06 Nyegaard & Co As Nouveaux agents de contraste iodes non-ioniques
EP0082804B1 (de) * 1981-12-18 1987-08-12 Schering Aktiengesellschaft 2-Amino-1-(1,3-dioxolan-4-yl)-ethanol-Verbindungen, deren Herstellung und Verwendung zur Weiterverarbeitung
LT3582B (en) 1989-09-04 1995-12-27 Nycomed Imaging As Contrast media, methods for preparing and using the same
US6660248B2 (en) 2000-11-10 2003-12-09 William Marsh Rice University Fullerene (C60)-based X-ray contrast agent for diagnostic imaging
US7780875B2 (en) 2005-01-13 2010-08-24 Cinvention Ag Composite materials containing carbon nanoparticles
RU2530159C1 (ru) * 2013-04-16 2014-10-10 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "САНКТ-ПЕТЕРБУРГСКАЯ ГОСУДАРСТВЕННАЯ АКАДЕМИЯ ВЕТЕРИНАРНОЙ МЕДИЦИНЫ" (ФГБОУ ВПО СПБГАВМ) Способ изготовления рентгеноконтрастной массы для вазорентгенографии при посмертных исследованиях животных

Families Citing this family (98)

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GB1495679A (en) * 1974-06-17 1977-12-21 Mallinckrodt Inc Substituted isophthalamic acids
US4314055A (en) * 1975-09-29 1982-02-02 Mallinckrodt, Inc. 3,5-Disubstituted-2,4,6-triiodoanilides of polyhydroxy-monobasic acids
JPS52130923A (en) * 1976-04-27 1977-11-02 Mallinckrodt Chemical Works Xxray photographic agent
CH626873A5 (en:Method) * 1977-03-28 1981-12-15 Bracco Ind Chimica Spa
DE2909439A1 (de) * 1979-03-08 1980-09-18 Schering Ag Neue nichtionische roentgenkontrastmittel
US4256729A (en) * 1979-03-23 1981-03-17 Mallinckrodt, Inc. N,N'-Bis-(2,3-dihydroxypropyl)-2,4,6-triiodo-5-(2-keto-L-gulonamido)isophthalamide and radiological compositions containing same
NL8002388A (nl) * 1979-05-21 1980-11-25 Mallinckrodt Inc Roentgencontrastmiddel.
IT1207226B (it) * 1979-08-09 1989-05-17 Bracco Ind Chimica Spa Derivati dell'acido 2,4,6-triiodo-isoftalico, metodo per la loro preparazione e mezzi di contrasto che li contengono.
DE3001292A1 (de) * 1980-01-11 1981-07-16 Schering Ag Berlin Und Bergkamen, 1000 Berlin Nichtionische 5-c-substituierte 2,4,6-trijod-isophthalsaeure-derivate
DE3038853A1 (de) 1980-10-10 1982-05-27 Schering Ag, 1000 Berlin Und 4619 Bergkamen Neue n-hydroxy-alkylierte dicarbonsaeure-bis-(3,5-dicarbamoyl-2,4,6-trijodanilide), deren herstellung und diese enthaltende roentgenkonstrastmittel (ii)
DE3150916A1 (de) * 1981-12-18 1983-06-30 Schering Ag, 1000 Berlin Und 4619 Bergkamen N-hydroxyaethylierte 2,4,6-trijodaminoisiophthalsaeure-bis- trihydroxybutylamide, deren herstellung und diese enthaltende roentgenkontrastmittel"
US4396598A (en) * 1982-01-11 1983-08-02 Mallinckrodt, Inc. Triiodoisophthalamide X-ray contrast agent
US5204086A (en) * 1982-10-01 1993-04-20 Nycomed Imaging As X-ray contrast agent
US4584401A (en) * 1983-10-20 1986-04-22 Biophysica Foundation Methods and compositions involving polyhydroxylated polyiodo non-ionic contrast media
DE3689330T2 (de) * 1985-08-09 1994-05-19 Cook Imaging Corp Nichtionische polyolkontrastmittel aus ionischen kontrastmitteln.
US5035877A (en) * 1985-08-09 1991-07-30 Cook Imaging Corporation Non-ionic contrast media from ionic contrast media
NZ224743A (en) * 1987-05-22 1991-07-26 Bracco Ind Chimica Spa 5-acylamino-2,4,6-tribromo- or triiodo-benzoic acid derivatives and intermediate compounds used in their preparation
IL94718A (en) * 1989-07-05 1994-10-21 Schering Ag Non-ionic carboxamide contrast agent and method of preparation
US5698739A (en) * 1989-07-05 1997-12-16 Schering Aktiengesellschaft Carboxamide non-ionic contrast media
DE3937118A1 (de) * 1989-11-03 1991-05-08 Schering Ag Nichtionische roentgenkontrastmittel mit hohem jodgehalt
US5232685A (en) * 1989-11-03 1993-08-03 Schering Aktiengesellschaft Nonionic x-ray contrast medium with high iodine content
US5614638A (en) * 1989-11-29 1997-03-25 Bracco International B.V. Nonionic radiographic contrast agents
US5075502A (en) * 1989-12-13 1991-12-24 Mallinckrodt, Inc. Nonionic x-ray contrast agents, compositions and methods
US4997983A (en) * 1990-01-31 1991-03-05 Mallinckrodt, Inc. Process for production of ioversol
IT1248741B (it) * 1991-02-26 1995-01-26 Bracco Spa Processo di concentrazione e di purificazione di composti organici
US5169864A (en) * 1991-11-15 1992-12-08 Baxter International Inc. Unbuffered premixed ranitidine formulation
US5463080A (en) * 1992-08-27 1995-10-31 Bracco International B.V. 2,4,6-triiodo-1,3-benzenedicarboxylic acid compounds used as radiolabelling reagents
IT1256163B (it) * 1992-10-27 1995-11-29 Zambon Spa Processo per la preparazione di un intermedio della sintesi organica
IT1256162B (it) * 1992-10-27 1995-11-29 Zambon Spa Processo per la preparazione di un intermedio della sintesi organica
IT1256248B (it) * 1992-12-24 1995-11-29 Bracco Spa Formulazioni iniettabili acquose per radiodiagnostica comprendenti miscele di composti aromatici iodurati utili come agenti opacizzanti ai raggi x
US5330740A (en) * 1993-03-01 1994-07-19 Sterling Winthrop Inc. Compositions of iodoaniline derivatives in film-forming materials for visualization of the gastrointestinal tract
US5424056A (en) * 1993-03-01 1995-06-13 Sterling Wintrhop Inc. X-ray contrast compositions containing iodoaniline derivatives and pharmaceutically acceptable clays
IL110391A (en) * 1993-07-30 1998-12-06 Zambon Spa Process for the crystallization of iopamidol
IT1271469B (it) * 1993-09-10 1997-05-28 Zambon Spa Processo per la preparazione di 5-ammino-2,2-dialchil-1,3 diossani
IT1274027B (it) * 1994-03-03 1997-07-14 Zambon Spa Processo per la preparazione e purificazione di mezzi di contrasto iodurati
IT1275429B (it) * 1995-05-18 1997-08-07 Zambon Spa Processo per la preparazione di un intermedio utile nella sintesi di composti organici
US5616795A (en) * 1995-05-23 1997-04-01 Fructamine S.P.A. Process for the preparation of a dicarboxylic acid dichloride
WO1996037460A1 (en) * 1995-05-23 1996-11-28 Fructamine S.P.A. Process for the preparation of a dicarboxylic acid dichloride
PT101720A (pt) * 1995-06-08 1997-01-31 Hovione Sociedade Quimica S A Processo para a purificacao e cristalizacao de iopamidol
ES2140887T3 (es) * 1995-09-08 2000-03-01 Bracco Int Bv Procedimiento para cristalizar en agua (s)-n-n'-bis(2-hidroxi-1-(hidroximetil)etil)-5-((2-hidroxi-1-oxopropil)amino)-2,4,6-triyodo-1,3-bencenodicarboxamida.
US5866100A (en) * 1995-12-19 1999-02-02 Bracco Research S.A. Compositions for imaging of the gastrointestinal tract
IT1283319B1 (it) * 1996-03-29 1998-04-16 Zambon Spa Processo per la preparazione di un intermedio utile nella sintesi di mezzi di contrasto iodurati
IT1288114B1 (it) * 1996-06-13 1998-09-10 Fructamine Spa Processo per la purificazione di un intermedio
GB9618056D0 (en) * 1996-08-29 1996-10-09 Nycomed Imaging As Process
US5705692A (en) * 1996-09-27 1998-01-06 Abbott Laboratories Process for the preparation of iohexol
US5861138A (en) * 1996-11-20 1999-01-19 Hoechst Celanese Corp. Ligands for MRI contrast agent
US5861140A (en) * 1996-11-20 1999-01-19 Hoechst Celanese Corp. Tripodal paramagnetic contrast agents for MR imaging
GB9624612D0 (en) * 1996-11-26 1997-01-15 Nycomed Imaging As Process
IT1286522B1 (it) * 1996-12-04 1998-07-15 Dibra Spa Processo per la preparazione di derivati dell'acido 5-ammino-2,4,6- triiodo-1,3-benzenedicarbossilico
IT1289519B1 (it) * 1996-12-24 1998-10-15 Zambon Spa Processo per la preparazione di un intermedio utile nella sintesi di mezzi di contrasto iodurati
IT1289521B1 (it) * 1996-12-24 1998-10-15 Zambon Spa Processo per la purificazione di un intermedio
IT1289520B1 (it) * 1996-12-24 1998-10-15 Zambon Spa Processo per la preparazione di un intermedio utile nella sintesi di mezzi di contrasto iodurati
AU1455397A (en) * 1997-02-11 1998-08-26 Bracco International B.V. Process for the crystallization from a linear or branched (c5-c6) alcohol or their mixtures of (s)-n,n'-bis{2-hydroxy-1- (hydroxymethyl)ethyl}-5-{ (2-hydroxy-1-oxopropyl)amino}-2,4,6- triiodo-1,3-benzendicarboxamide
IT1292037B1 (it) * 1997-05-30 1999-01-25 Bracco Spa Processo per la preparazione di 5-(acetil 62,3-diidrossipropil)- ammino)-n,n'-bis(2,3-diidrossipropil)-2,4,6-triiodo-1,3-benzen-
US5820851A (en) * 1997-08-21 1998-10-13 Hoechst Celanese Corporation Tripodal pyridine ligands as MRI contrast agents
US5858329A (en) * 1997-08-21 1999-01-12 Hoechst Celanese Corporation MRI diagnostic procedures using tripodal pyridinyl metal complexes
US5869025A (en) * 1997-08-21 1999-02-09 Hoechst Celanese Corporation Tripodal aromatic heterocycle carboxamide MRI contrast agents
US5824288A (en) * 1997-08-21 1998-10-20 Hoechst Celanese Corporation Thio-substituted pyridines as MRI ligand precursors
US5869026A (en) * 1997-08-21 1999-02-09 Hoechst Celanese Corp. Tripodal carboxamide ligands for MRI contrast agents
IT1299202B1 (it) * 1998-05-08 2000-02-29 Dibra Spa Processo per la preparazione della s-n,n'-bis (2-idrossi-1- (idrossimetil)etil) -5-((2-idrossi-1-ossopropil)ammino)-2,4,6-triiodo
US6262303B1 (en) 1998-05-08 2001-07-17 Dibra S.P.A. Process for the preparation of S-N,N′-bis[2-hydroxy-1-(hydroxymethyl)ethyl]-5-[(2-hydroxy-1-oxopropyl)-amino]-2,4,6-triiodo-1,3-benzenedicarboxamide
IT1302200B1 (it) * 1998-09-11 2000-07-31 Dibra Spa PROCESSO PER LA PREPARAZIONE DELLA S-N,N'-BIS°2-IDROSSI-1-(IDROSSIMETIL)ETILé-5-°(2-IDROSSI-1-
GB9825095D0 (en) 1998-11-16 1999-01-13 Nycomed Imaging As Chemical process
US6803485B2 (en) * 1999-02-26 2004-10-12 Bracco Imaging S.P.A. Process for the preparation of iopamidol
SE520688C2 (sv) * 2000-04-11 2003-08-12 Bone Support Ab Ett injicerbart ersättningsmaterial för benmineral
SE517168C2 (sv) * 2000-07-17 2002-04-23 Bone Support Ab En komposition för ett injicerbart ersättningsmaterial för benmineral
IT1319671B1 (it) * 2000-12-01 2003-10-23 Bracco Spa Processo per la preparazione di (s)-n,n'-bis(2-idrossi-1-(idrossimetil)etil)-5-((2-idrossi-1-ossopropil)ammino)
SE522098C2 (sv) * 2001-12-20 2004-01-13 Bone Support Ab Ett nytt benmineralsubstitut
SE0300620D0 (sv) * 2003-03-05 2003-03-05 Bone Support Ab A new bone substitute composition
SE0302983D0 (sv) * 2003-11-11 2003-11-11 Bone Support Ab Anordning för att förse spongiöst ben med benersättnings- och/eller benförstärkningsmaterial och förfarande i samband därmed
SE527528C2 (sv) 2004-06-22 2006-04-04 Bone Support Ab Anordning för framställning av härdbar massa samt användning av anordningen
EP2104473A1 (en) * 2007-01-19 2009-09-30 Cinvention Ag Porous, non-degradable implant made by powder molding
EP2126040A1 (en) * 2007-02-28 2009-12-02 Cinvention Ag High surface cultivation system
WO2008104599A1 (en) * 2007-02-28 2008-09-04 Cinvention Ag High surface cultivation system bag
US7955234B1 (en) 2007-02-28 2011-06-07 Pursley Michael G Exercise device and method
EP2093206A1 (en) 2008-02-20 2009-08-26 BRACCO IMAGING S.p.A. Process for the iodination of aromatic compounds
EP2365963B1 (en) * 2008-11-18 2017-06-28 Bracco Imaging S.p.A Process for the preparation of iodinated contrast agent
JP2012514622A (ja) 2009-01-09 2012-06-28 ジーイー・ヘルスケア・アクスイェ・セルスカプ 造影製剤組成物
EP2230227A1 (en) * 2009-03-20 2010-09-22 Bracco Imaging S.p.A Process for the preparation of triiodinated carboxylic aromatic derivatives
EP2243767A1 (en) * 2009-04-21 2010-10-27 Bracco Imaging S.p.A Process for the iodination of aromatic compounds
CN102471901B (zh) 2009-07-07 2014-07-16 伯拉考成像股份公司 制备碘化剂的方法
US9180137B2 (en) 2010-02-09 2015-11-10 Bone Support Ab Preparation of bone cement compositions
PT105770B (pt) * 2011-06-24 2013-07-08 Hovione Farmaciencia S A Novo intermediário e seu uso na preparação de agente de contrate triiodado
HUE040143T2 (hu) 2012-12-11 2019-02-28 Bracco Imaging Spa Folyamatos eljárás (S)-2-acetiloxipropionsav elõállítására
KR102024692B1 (ko) 2013-02-20 2019-11-04 본 서포트 아베 경화성 뼈 대체물의 향상된 세팅
MX375753B (es) 2013-11-05 2025-03-06 Bracco Imaging Spa Procedimiento para la preparacion de iopamidol.
ES2790596T3 (es) 2014-06-10 2020-10-28 Bracco Imaging Spa Procedimiento para la preparación de ácido (S)-2-acetiloxipropiónico y derivados del mismo
CN104230731B (zh) * 2014-09-24 2016-01-20 武汉理工大学 造影剂中间体三碘异酞酰氯的制备方法
PT108524B (pt) * 2015-06-02 2017-12-15 Hovione Farmaciência S A Processo para a preparação de intermediários úteis na preparação de agentes de contraste não-iónicos
CN105461581A (zh) * 2015-11-17 2016-04-06 浙江海洲制药有限公司 碘帕醇杂质a和杂质b的合成方法
CN107778191A (zh) * 2016-08-26 2018-03-09 正大天晴药业集团股份有限公司 一种碘普罗胺及其中间体的制备方法
WO2018104228A1 (en) 2016-12-05 2018-06-14 Bracco Imaging Spa Mechanochemical synthesis of radiographic agents intermediates
JP7132252B2 (ja) 2017-06-07 2022-09-06 ブラッコ・イメージング・ソシエタ・ペル・アチオニ 水溶液からのヨウ素の回収方法
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CN116063195A (zh) * 2023-01-07 2023-05-05 安庆朗坤药业有限公司 一种碘帕醇中间体碘化物的制备方法
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IE34927B1 (en) * 1969-06-27 1975-10-01 Nyegaard & Co As Non-ionic iodinated x-ray contrast agents
DE2124904C3 (de) * 1971-05-15 1980-09-18 Schering Ag, 1000 Berlin Und 4619 Bergkamen Hydroxy- und Alkoxyacetamido-trijodbenzoesäuren, deren Salze mit physiologisch verträglichen Basen, Verfahren zu deren Herstellung und diese Verbindungen enthaltende Röntgenkontrastmittel
BE788054A (fr) * 1971-08-26 1973-02-26 Bracco Ind Chimica Spa Nouvel agent de contraste radiographique et procede pour le preparer
CH583562A5 (en:Method) * 1973-07-17 1977-01-14 Bracco Ind Chimica Spa
CH576256A5 (en:Method) * 1973-07-17 1976-06-15 Bracco Ind Chimica Spa

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2354316A1 (fr) * 1976-06-11 1978-01-06 Nyegaard & Co As Nouveaux agents de contraste iodes non-ioniques
JPS5321137A (en) * 1976-06-11 1978-02-27 Serukapeto Xxray contrast medium
EP0082804B1 (de) * 1981-12-18 1987-08-12 Schering Aktiengesellschaft 2-Amino-1-(1,3-dioxolan-4-yl)-ethanol-Verbindungen, deren Herstellung und Verwendung zur Weiterverarbeitung
LT3582B (en) 1989-09-04 1995-12-27 Nycomed Imaging As Contrast media, methods for preparing and using the same
US6660248B2 (en) 2000-11-10 2003-12-09 William Marsh Rice University Fullerene (C60)-based X-ray contrast agent for diagnostic imaging
US7780875B2 (en) 2005-01-13 2010-08-24 Cinvention Ag Composite materials containing carbon nanoparticles
RU2530159C1 (ru) * 2013-04-16 2014-10-10 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "САНКТ-ПЕТЕРБУРГСКАЯ ГОСУДАРСТВЕННАЯ АКАДЕМИЯ ВЕТЕРИНАРНОЙ МЕДИЦИНЫ" (ФГБОУ ВПО СПБГАВМ) Способ изготовления рентгеноконтрастной массы для вазорентгенографии при посмертных исследованиях животных

Also Published As

Publication number Publication date
HU170216B (en:Method) 1977-04-28
ES442651A1 (es) 1977-04-16
AR211853A1 (es) 1978-03-31
NO145096C (no) 1982-01-13
MX3174E (es) 1980-06-09
AU475785B2 (en) 1976-09-02
ZA757222B (en) 1976-11-24
IE42620B1 (en) 1980-09-10
FR2293919A1 (fr) 1976-07-09
IL48484A (en) 1978-08-31
ATA925175A (de) 1977-08-15
NL7512208A (nl) 1976-06-15
DD122475A5 (en:Method) 1976-10-12
CS194234B2 (en) 1979-11-30
DK147336C (da) 1985-01-21
DK147336B (da) 1984-06-25
ATA925075A (de) 1977-04-15
CA1046082A (en) 1979-01-09
DE2547789B2 (de) 1977-02-24
CH608189A5 (en:Method) 1978-12-29
YU40448B (en) 1986-02-28
IE42620L (en) 1976-06-13
YU196783A (en) 1984-12-31
AT340582B (de) 1977-12-27
SU628813A3 (ru) 1978-10-15
JPS5182236A (en) 1976-07-19
PL96082B1 (pl) 1977-12-31
NO754241L (en:Method) 1976-06-15
IL48484A0 (en) 1976-01-30
GB1472050A (en) 1977-04-27
SE7514076L (sv) 1976-06-14
IN142089B (en:Method) 1977-05-28
AT342579B (de) 1978-04-10
NL157295B (nl) 1978-07-17
FR2293919B1 (en:Method) 1980-06-20
YU41540B (en) 1987-08-31
JPS5642581B2 (en:Method) 1981-10-06
NO145096B (no) 1981-10-05
YU315575A (en) 1982-02-28
AU8751675A (en) 1976-09-02
DK567475A (da) 1976-06-14
DE2547789A1 (de) 1976-06-24
RO69615A (ro) 1981-06-30
US4001323A (en) 1977-01-04
PH12321A (en) 1979-01-16
SE409993B (sv) 1979-09-17
BG26512A3 (bg) 1979-04-12

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