ES2139646T3 - Acido polihidroxido carboxilico y su procedimiento de obtencion. - Google Patents

Acido polihidroxido carboxilico y su procedimiento de obtencion.

Info

Publication number
ES2139646T3
ES2139646T3 ES93900343T ES93900343T ES2139646T3 ES 2139646 T3 ES2139646 T3 ES 2139646T3 ES 93900343 T ES93900343 T ES 93900343T ES 93900343 T ES93900343 T ES 93900343T ES 2139646 T3 ES2139646 T3 ES 2139646T3
Authority
ES
Spain
Prior art keywords
southern
procedure
polyhydroxide
carboxyl
acid
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 - Lifetime
Application number
ES93900343T
Other languages
English (en)
Inventor
Katashi Enomoto
Masanobu Ajioka
Akihiro Yamaguchi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsui Chemicals Inc
Original Assignee
Mitsui Chemicals Inc
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 by Mitsui Chemicals Inc filed Critical Mitsui Chemicals Inc
Application granted granted Critical
Publication of ES2139646T3 publication Critical patent/ES2139646T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
    • C08G63/06—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from hydroxycarboxylic acids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/06—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of zinc, cadmium or mercury

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Biological Depolymerization Polymers (AREA)

Abstract

UN PROCEDIMIENTO PARA PRODUCIR UN ACIDO CARBOXILICO POLIHIDROXI, EXCELENTE EN PROPIEDADES Y PROCESABILIDAD MEDIANTE LA CONDENSACION DE UN ACIDO CARBOXILICO HIDROXI O SU OLIGOMERO EN UNA MEZCLA DE REACCION DE UN ACIDO CARBOXILICO HIDROXI O SU OLIGOMERO, CONTENIENDO UN DISOLVENTE ORGANICO EN LA AUSENCIA SUSTANCIAL DE AGUA.
ES93900343T 1991-12-19 1992-12-16 Acido polihidroxido carboxilico y su procedimiento de obtencion. Expired - Lifetime ES2139646T3 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP33682091 1991-12-19
JP15652692 1992-06-16

Publications (1)

Publication Number Publication Date
ES2139646T3 true ES2139646T3 (es) 2000-02-16

Family

ID=26484239

Family Applications (1)

Application Number Title Priority Date Filing Date
ES93900343T Expired - Lifetime ES2139646T3 (es) 1991-12-19 1992-12-16 Acido polihidroxido carboxilico y su procedimiento de obtencion.

Country Status (7)

Country Link
US (1) US5310865A (es)
EP (1) EP0572675B1 (es)
KR (1) KR970007322B1 (es)
DE (1) DE69230032T2 (es)
ES (1) ES2139646T3 (es)
FI (1) FI933471A0 (es)
WO (1) WO1993012160A1 (es)

Families Citing this family (107)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3641692A1 (de) * 1986-12-06 1988-06-09 Boehringer Ingelheim Kg Katalysatorfreie resorbierbare homopolymere und copolymere
IT1256918B (it) * 1992-08-04 1995-12-27 Mini Ricerca Scient Tecnolog Procedimento per la produzione di poli acido lattico.
US5444143A (en) * 1992-12-25 1995-08-22 Mitsui Toatsu Chemicals, Inc. Preparation process of polyhydroxycarboxylic acid
GB9300554D0 (en) * 1993-01-13 1993-03-03 Zeneca Ltd Film formation
US5401796A (en) * 1993-04-02 1995-03-28 Mitsui Toatsu Chemicals, Inc. Aliphatic polyester and preparation process thereof
US5440008A (en) * 1993-05-28 1995-08-08 Mitsui Toatsu Chemicals, Inc. Process for preparing polyhydroxycarboxylic acid
JP3309502B2 (ja) * 1993-07-12 2002-07-29 大日本インキ化学工業株式会社 生分解性ポリエステル系ポリマーの連続製造法
US5484945A (en) * 1993-08-24 1996-01-16 Mitsui Toatsu Chemicals, Inc. Preparation process of polysuccinimide
US5496923A (en) * 1993-09-20 1996-03-05 Mitsui Toatsu Chemicals, Inc. Purification process of aliphatic polyester
US5714230A (en) * 1993-11-18 1998-02-03 Mitsui Toatsu Chemicals, Inc. Degradable aliphatic polyester formed products
US5543202A (en) * 1994-03-14 1996-08-06 Kimberly-Clark Corporation Process for producing a crimp-bonded fibrous cellulosic laminate
US5646238A (en) * 1994-07-27 1997-07-08 Mitsui Toatsu Chemicals, Inc. Preparation process of polyhydroxycarboxylic acid
JPH08109250A (ja) * 1994-10-13 1996-04-30 Mitsui Toatsu Chem Inc ポリヒドロキシカルボン酸の精製方法
US5616681A (en) * 1994-11-01 1997-04-01 Nippon Shokubai Co., Ltd. Process for producing aliphatic polyester
US5770683A (en) * 1994-11-02 1998-06-23 Mitsui Toatsu Chemicals, Inc. Preparation process of polyhydroxycarboxylic acid
US5637631A (en) * 1994-11-17 1997-06-10 Mitsui Toatsu Chemicals, Inc. Preparation process of degradable polymer
US5817728A (en) * 1995-03-16 1998-10-06 Mitsui Chemicals, Inc. Preparation of degradable copolymers
US5847011A (en) * 1995-12-05 1998-12-08 Mitsui Chemicals, Inc. Degradable copolymer and preparation process thereof
US6417294B1 (en) 1995-12-21 2002-07-09 Mitsui Chemicals, Inc. Films and molded articles formed from aliphatic polyester compositions containing nucleating agents
DE19709854A1 (de) * 1996-03-13 1997-10-30 Nishikawa Rubber Co Ltd Verfahren zur Herstellung eines Polyhydroxycarbonsäure-Copolymerharzes
US5914188A (en) * 1996-04-18 1999-06-22 Mitsui Chemicals, Inc. Coated aliphatic polyester film
JP3301311B2 (ja) * 1996-05-24 2002-07-15 株式会社神戸製鋼所 ２−ヒドロキシカルボン酸オリゴマーの連続製造方法
EP0826711B1 (en) * 1996-09-02 2003-01-29 Mitsui Chemicals, Inc. Preparation process of aliphatic polyester
US5952455A (en) * 1996-10-11 1999-09-14 Kyowa Hakko Kogyo Co., Ltd. Process for producing polyhydroxycarboxylic acid
US6111137A (en) * 1996-12-20 2000-08-29 Mitsui Chemicals, Inc. Purification process of lactic acid
CA2275525C (en) * 1996-12-20 2011-02-08 Kevin J. Brodbeck Gel composition and methods
DE19740111A1 (de) * 1997-09-12 1999-03-18 Basf Ag Milchsäurepolymerisate
US6608170B1 (en) * 1999-03-31 2003-08-19 Cornell Research Foundation, Inc. Syndiotactic poly(lactic acid)
EP1949890A3 (en) 1999-06-04 2011-05-18 ALZA Corporation Implantable gel compositions and method of manufacture
AU779277B2 (en) * 1999-06-04 2005-01-13 Alza Corporation Implantable gel compositions and method of manufacture
WO2001067990A1 (en) * 2000-03-13 2001-09-20 Keiji Igaki Wire rods for vascular stents and vascular stents with the use of the same
US20030211974A1 (en) * 2000-03-21 2003-11-13 Brodbeck Kevin J. Gel composition and methods
AU2001294527A1 (en) 2000-10-24 2002-05-06 Cornell Research Foundation Inc. Preparing isotactic stereoblock poly(lactic acid)
TWI238834B (en) * 2001-07-10 2005-09-01 Kureha Chemical Ind Co Ltd Polyhydroxycarboxylic acid and its production process
US7026379B2 (en) 2001-09-26 2006-04-11 Kabushiki Kaisha Toshiba Copolymer resin composition and production process thereof
ATE380470T1 (de) * 2001-09-28 2007-12-15 Basf Ag Biologisch abbaubare feste zubereitung eines pflanzenschutzmittels mit verzögerter wirkstoffreisetzung
CN1703197A (zh) * 2001-11-14 2005-11-30 阿尔扎有限公司 可注射的长效组合物和其使用
MXPA04004665A (es) * 2001-11-14 2004-09-10 Alza Corp Composiciones de deposito inyectable y uso de los mismos.
US20070196415A1 (en) * 2002-11-14 2007-08-23 Guohua Chen Depot compositions with multiple drug release rate controls and uses thereof
US6852904B2 (en) 2001-12-18 2005-02-08 Kimberly-Clark Worldwide, Inc. Cellulose fibers treated with acidic odor control agents
US6767553B2 (en) 2001-12-18 2004-07-27 Kimberly-Clark Worldwide, Inc. Natural fibers treated with acidic odor control/binder systems
US8507253B2 (en) * 2002-05-13 2013-08-13 Algae Systems, LLC Photobioreactor cell culture systems, methods for preconditioning photosynthetic organisms, and cultures of photosynthetic organisms produced thereby
US20050239182A1 (en) * 2002-05-13 2005-10-27 Isaac Berzin Synthetic and biologically-derived products produced using biomass produced by photobioreactors configured for mitigation of pollutants in flue gases
EP1367080A1 (en) 2002-05-29 2003-12-03 Hycail B.V. Hyperbranched poly(hydroxycarboxylic acid) polymers
US20040001889A1 (en) 2002-06-25 2004-01-01 Guohua Chen Short duration depot formulations
AR039729A1 (es) 2002-06-25 2005-03-09 Alza Corp Formulaciones de deposito de corta duracion
IL166418A0 (en) * 2002-07-31 2006-01-15 Alza Corp Injectable depot compositions and uses thereof
AU2003256849A1 (en) 2002-07-31 2004-02-16 Alza Corporation Injectable multimodal polymer depot compositions and uses thereof
DE60325511D1 (de) * 2002-11-06 2009-02-05 Alza Corp Depot-formulierungen mit verzögerter freisetzung
AU2004245022A1 (en) * 2003-05-30 2004-12-16 Alza Corporation Implantable elastomeric depot compositions, uses thereof and method of manufacturing
US20070184084A1 (en) * 2003-05-30 2007-08-09 Guohua Chen Implantable elastomeric caprolactone depot compositions and uses thereof
NL1023720C2 (nl) * 2003-06-23 2004-12-28 Univ Eindhoven Tech Werkwijze voor het wijzigen van de transporteigenschappen van een materiaal, werkwijze voor het vrijmaken van een werkstof uit een implantaat, evenals implantaat met werkstof.
US20050106214A1 (en) * 2003-11-14 2005-05-19 Guohua Chen Excipients in drug delivery vehicles
US7507561B2 (en) * 2004-05-20 2009-03-24 Reliance Life Sciences Pvt. Ltd. Process for the production of polylactic acid (PLA) from renewable feedstocks
EP1941799A3 (en) 2004-12-17 2008-09-17 Devgen NV Nematicidal compositions
US20060142234A1 (en) * 2004-12-23 2006-06-29 Guohua Chen Injectable non-aqueous suspension
GB2422839B (en) * 2005-01-11 2009-06-24 Schlumberger Holdings Degradable polymers for wellbore fluids and processes
EP1842877A4 (en) * 2005-01-18 2010-12-29 Toho Chem Ind Co Ltd BIODEGRADABLE POLYESTER RESIN COMPOSITION
US20090286927A1 (en) * 2005-06-27 2009-11-19 Niels Dan Anders Sodergard Hyperbranched Polymers
US20090036600A1 (en) * 2005-09-28 2009-02-05 Tate & Lyle Public Limited Company Novel Process for the Preparation of Polylactic Acid
DK1984009T3 (da) 2006-01-18 2013-01-28 Qps Llc Farmaceutiske sammensætninger med forbedret stabilitet
US8110395B2 (en) * 2006-07-10 2012-02-07 Algae Systems, LLC Photobioreactor systems and methods for treating CO2-enriched gas and producing biomass
WO2008105662A1 (en) * 2007-03-01 2008-09-04 Bioneedle Technologies Group B.V. Biodegradable material based on opened starch
WO2008105663A1 (en) * 2007-03-01 2008-09-04 Bioneedle Technologies Group B.V. Implant containing destructurized starch
AU2008246176B2 (en) 2007-04-27 2014-02-20 Algae Systems Llc Photobioreactor systems positioned on bodies of water
US20090105097A1 (en) * 2007-10-22 2009-04-23 Carlos Abad Degradable Friction Reducer
WO2009145341A1 (ja) 2008-05-27 2009-12-03 帝人化成株式会社 難燃性樹脂組成物およびそれからの成形品
US8545971B2 (en) * 2008-06-30 2013-10-01 Fina Technology, Inc. Polymeric compositions comprising polylactic acid and methods of making and using same
US8796383B2 (en) 2008-06-30 2014-08-05 Fina Technology, Inc. Polypropylene and polylactic acid formulations for heat seal applications
US8759446B2 (en) * 2008-06-30 2014-06-24 Fina Technology, Inc. Compatibilized polypropylene and polylactic acid blends and methods of making and using same
US8268913B2 (en) * 2008-06-30 2012-09-18 Fina Technology, Inc. Polymeric blends and methods of using same
JP5622717B2 (ja) 2009-02-19 2014-11-12 帝人株式会社 難燃性樹脂組成物およびそれからの成形品
EP2436730A4 (en) 2009-05-26 2015-04-22 Teijin Chemicals Ltd FIRE-RESISTANT RESIN COMPOSITION AND ARTICLES THEREOF
US20110028622A1 (en) 2009-07-28 2011-02-03 E. I. Du Pont De Nemours And Company Poly(hydroxyalkanoic acid) blown film
WO2011038178A1 (en) 2009-09-24 2011-03-31 E. I. Du Pont De Nemours And Company Poly(hydroxyalkanoic acid) plasticized with poly(trimethylene ether) glycol
JP5493991B2 (ja) * 2010-02-24 2014-05-14 富士ゼロックス株式会社 ポリ乳酸系樹脂組成物、ポリ乳酸系樹脂組成物の製造方法及びポリ乳酸系樹脂成形体
JP5493999B2 (ja) * 2010-02-25 2014-05-14 富士ゼロックス株式会社 ポリ乳酸系樹脂組成物、ポリ乳酸系樹脂組成物の製造方法及びポリ乳酸系樹脂成形体
AU2011231640A1 (en) 2010-03-24 2012-10-25 Basf Se Process for producing aqueous dispersions of thermoplastic polyesters
US8604101B2 (en) * 2010-03-24 2013-12-10 Basf Se Process for producing aqueous dispersions of thermoplastic polyesters
KR101728195B1 (ko) 2010-05-18 2017-04-18 가부시키가이샤 제이에스피 폴리락트산계 수지 발포 입자 및 그 발포 입자 성형체
FR2965814B1 (fr) 2010-10-08 2012-11-16 Roquette Freres Plastification de polyesters aliphatiques par des esters alkyliques de dianhydrohexitols
WO2012057297A1 (ja) 2010-10-27 2012-05-03 帝人化成株式会社 難燃性樹脂組成物およびそれからの成形品
JP5419243B2 (ja) 2010-12-21 2014-02-19 株式会社ジェイエスピー ポリ乳酸系樹脂発泡粒子及びポリ乳酸系樹脂発泡粒子成形体
US8586192B2 (en) 2011-02-15 2013-11-19 Fina Technology, Inc. Compatibilized polymeric compositions comprising polyolefin-polylactic acid copolymers and methods of making the same
US8628718B2 (en) 2011-02-18 2014-01-14 Fina Technology, Inc. Modified polylactic acid, polymeric blends and methods of making the same
CA2849663A1 (en) 2011-09-23 2013-03-28 Basf Se Use of an aqueous dispersion of biodegradable polyesters
WO2013047075A1 (ja) 2011-09-28 2013-04-04 株式会社ジェイエスピー ポリ乳酸系樹脂発泡粒子およびその成形体
US20140336289A1 (en) 2011-10-18 2014-11-13 Jsp Corporation Process for producing polylactic acid-based resin expanded beads
WO2013184014A1 (en) 2012-06-06 2013-12-12 Universidade De Coimbra Process for preparing high molecular weight poly(lactic acid) by melt polycondensation
EP2732832A3 (en) 2012-11-14 2015-07-01 Universitair Medisch Centrum Groningen (UMCG) Drug delivery device comprising an active compound and a thermo-sensitive polymeric material
CN103300120B (zh) * 2013-06-25 2015-04-22 南京工业大学 一种绿色家禽家畜脱毛剂及其制备方法
WO2015088990A1 (en) 2013-12-09 2015-06-18 Durect Corporation Pharmaceutically active agent complexes, polymer complexes, and compositions and methods involving the same
US9249268B2 (en) 2014-06-13 2016-02-02 Fina Technology, Inc. Polymeric blends and articles made therefrom
US20160106804A1 (en) 2014-10-15 2016-04-21 Yuhua Li Pharmaceutical composition with improved stability
WO2016140647A1 (en) 2015-03-02 2016-09-09 Fina Technology, Inc. Composites of polyethylene and polylactic acid
CN108602944A (zh) * 2016-03-28 2018-09-28 株式会社Lg化学 液体生物聚合物、其用途和制备方法
AU2017290143A1 (en) 2016-06-30 2019-02-21 Durect Corporation Depot formulations
US10682340B2 (en) 2016-06-30 2020-06-16 Durect Corporation Depot formulations
EA201990127A1 (ru) 2016-12-30 2020-08-18 Дьюрект Корпорейшн Депо-препарат
TR201702016A2 (tr) 2017-02-10 2018-08-27 Tuerkiye Bilimsel Ve Teknolojik Arastirma Kurumu Tuebitak Düşük mali̇yetli̇ yüksek moleküler ağirlikli ve yüksek çözünürlüğe sahi̇p poli̇gli̇koli̇k asi̇t sentezi̇
JP6577068B2 (ja) * 2018-01-30 2019-09-18 ダイセルバリューコーティング株式会社 ガスバリア性フィルム及びその製造方法
GB2579707A (en) 2018-10-15 2020-07-01 Avent Inc Compositions, systems, kits, and methods for neural ablation
WO2021146215A1 (en) 2020-01-13 2021-07-22 Durect Corporation Sustained release drug delivery systems with reduced impurities and related methods
JP6881647B1 (ja) 2020-04-17 2021-06-02 東洋インキＳｃホールディングス株式会社 粘着剤組成物および粘着シート
KR20230145053A (ko) 2021-01-12 2023-10-17 듀렉트 코퍼레이션 지속 방출 약물 전달 시스템 및 관련 방법
CN113698583A (zh) * 2021-09-08 2021-11-26 刘青 一种直接合成高分子量聚乳酸的方法
CN114621179B (zh) * 2022-03-17 2024-03-26 中国神华煤制油化工有限公司 乙交酯的合成方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2174491A (en) * 1938-06-28 1939-09-26 Paul D Watson Method of making lactic acid resinous products
US2396994A (en) * 1944-01-18 1946-03-19 Nasa Condensation products of hydroxy carboxylic acids
US2703316A (en) * 1951-06-05 1955-03-01 Du Pont Polymers of high melting lactide
US2758987A (en) * 1952-06-05 1956-08-14 Du Pont Optically active homopolymers containing but one antipodal species of an alpha-monohydroxy monocarboxylic acid
GB1325927A (en) * 1970-06-16 1973-08-08 Ici Ltd Condensation polymers
US4273920A (en) * 1979-09-12 1981-06-16 Eli Lilly And Company Polymerization process and product
JPS5996123A (ja) * 1982-11-25 1984-06-02 Showa Highpolymer Co Ltd 高分子量ポリラクタイドの製造方法
US5180765A (en) * 1988-08-08 1993-01-19 Biopak Technology, Ltd. Biodegradable packaging thermoplastics from lactides
US5206341A (en) * 1991-11-21 1993-04-27 Southern Research Institute Polymers from hydroxy acids and polycarboxylic acids

Also Published As

Publication number Publication date
DE69230032D1 (de) 1999-10-28
FI933471L (fi) 1993-08-05
EP0572675B1 (en) 1999-09-22
KR970007322B1 (ko) 1997-05-07
DE69230032T2 (de) 2000-02-03
KR930703374A (ko) 1993-11-29
WO1993012160A1 (fr) 1993-06-24
US5310865A (en) 1994-05-10
EP0572675A4 (en) 1994-05-18
FI933471A7 (fi) 1993-08-05
FI933471A0 (fi) 1993-08-05
EP0572675A1 (en) 1993-12-08

Similar Documents

Publication Publication Date Title
ES2139646T3 (es) Acido polihidroxido carboxilico y su procedimiento de obtencion.
MX9201235A (es) Procedimiento para la fabricacion de boehmita dispersable.
CA2110380A1 (en) Endoscopic Extraction Device Having Composite Wire Construction
CA2222498A1 (en) Aqueous hand disinfectant composition comprising a lower alcohol and a diol
CA2099898A1 (en) Antibacterial antiplaque oral composition
ATE526300T1 (de) Octenzusammensetzung
AU1469588A (en) 4-demethoxy-4-amino-anthracyclines
IT9067970A0 (it) Sistema per la trasmissione e ricezione di segnali televisivi codificati.
ITRM930291A0 (it) Procedimento per la preparazione di biopolimeri iodurati con attivita'disinfettante e cicatrizzante, e biopolimeri iodurati cosi' ottenuti.
ITRM910430A1 (it) Composizioni farmaceutiche di somatostatina con assorbimento migliorato, loro preparazione e loro impiego
ES2107852T3 (es) Procedimiento para la obtencion de 1,4-butanodiol.
ITRM930502A0 (it) Procedimento per la produzione di r amminocarnitina e s amminocarnitina.
ES2124561T3 (es) Procedimiento para la obtencion de 1,4-butanodiol.
ATE180676T1 (de) Adjuvans für impstoffe
ITGE930001A0 (it) Metodo e sistema per la produzione di energia elettrica.
GB2383710A (en) Passive ranging to a target reflecting solar radiation
ITMI910595A1 (it) Resine poliestere insature idrosolubili atte alla preparazione di vernici all'acqua, e vernici preparate con tali resine.
HUT38832A (en) Agent suitable for increasing the ph-value of tooth-plaque and process for producing the same
ITTO930147A0 (it) Procedimento per la produzione di bobine e bobine cosi' ottenute.
Brecht Ekottarshati
Keehyun Park et al. Development of the murine tubotympanal cavity
FI922016A0 (fi) Foerfarande foer framstaellning av dubbelskyddade 1-karba(1-detia)-3-kefem-4-karboxylsyror.
PL293808A1 (en) Method of obtaining 4.4'-dinitrostilbene disulfonic-2,2' acid and/or its salts
DE59200003D1 (de) Kaltwassererzeugungsanlage.
FI904895A0 (fi) Poly(keto)estrar.

Legal Events

Date Code Title Description
FG2A Definitive protection

Ref document number: 572675

Country of ref document: ES