GT198065361A - Polimerizacion, procedimiento y producto - Google Patents
Polimerizacion, procedimiento y productoInfo
- Publication number
- GT198065361A GT198065361A GT198065361A GT198065361A GT198065361A GT 198065361 A GT198065361 A GT 198065361A GT 198065361 A GT198065361 A GT 198065361A GT 198065361 A GT198065361 A GT 198065361A GT 198065361 A GT198065361 A GT 198065361A
- Authority
- GT
- Guatemala
- Prior art keywords
- weight
- polymerization
- acid
- copolymer
- procedure
- Prior art date
Links
- 238000006116 polymerization reaction Methods 0.000 title abstract 2
- 238000000034 method Methods 0.000 title 1
- AEMRFAOFKBGASW-UHFFFAOYSA-N Glycolic acid Chemical compound OCC(O)=O AEMRFAOFKBGASW-UHFFFAOYSA-N 0.000 abstract 4
- 229920001577 copolymer Polymers 0.000 abstract 3
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 abstract 2
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 abstract 2
- 239000002253 acid Substances 0.000 abstract 1
- 238000013270 controlled release Methods 0.000 abstract 1
- 239000003814 drug Substances 0.000 abstract 1
- 229940079593 drug Drugs 0.000 abstract 1
- 235000014655 lactic acid Nutrition 0.000 abstract 1
- 239000004310 lactic acid Substances 0.000 abstract 1
- 239000002685 polymerization catalyst Substances 0.000 abstract 1
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
- C08G63/78—Preparation processes
- C08G63/82—Preparation processes characterised by the catalyst used
- C08G63/823—Preparation processes characterised by the catalyst used for the preparation of polylactones or polylactides
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
- A61K47/30—Macromolecular organic or inorganic compounds, e.g. inorganic polyphosphates
- A61K47/34—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyesters, polyamino acids, polysiloxanes, polyphosphazines, copolymers of polyalkylene glycol or poloxamers
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Inorganic Chemistry (AREA)
- Proteomics, Peptides & Aminoacids (AREA)
- Pharmacology & Pharmacy (AREA)
- Epidemiology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Polyesters Or Polycarbonates (AREA)
- Medicinal Preparation (AREA)
- Biological Depolymerization Polymers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/075,296 US4273920A (en) | 1979-09-12 | 1979-09-12 | Polymerization process and product |
Publications (1)
Publication Number | Publication Date |
---|---|
GT198065361A true GT198065361A (es) | 1982-03-04 |
Family
ID=22124778
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GT198065361A GT198065361A (es) | 1979-09-12 | 1980-09-10 | Polimerizacion, procedimiento y producto |
Country Status (31)
Families Citing this family (89)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4333919A (en) * | 1979-09-12 | 1982-06-08 | Eli Lilly And Company | Growth promotant controlled release formulations and method of treatment |
IE52535B1 (en) * | 1981-02-16 | 1987-12-09 | Ici Plc | Continuous release pharmaceutical compositions |
US4716964A (en) * | 1981-08-10 | 1988-01-05 | Exxon Production Research Company | Use of degradable ball sealers to seal casing perforations in well treatment fluid diversion |
US4523591A (en) * | 1982-10-22 | 1985-06-18 | Kaplan Donald S | Polymers for injection molding of absorbable surgical devices |
FR2537980B1 (fr) * | 1982-12-17 | 1986-12-19 | Sandoz Sa | Derives d'acides hydroxycarboxyliques oligomeres, leur preparation et leur utilisation |
US4470416A (en) * | 1983-06-17 | 1984-09-11 | Ethicon, Inc. | Copolymers of lactide and/or glycolide with 1,5-dioxepan-2-one |
CH656884A5 (de) * | 1983-08-26 | 1986-07-31 | Sandoz Ag | Polyolester, deren herstellung und verwendung. |
US4594407A (en) * | 1983-09-20 | 1986-06-10 | Allied Corporation | Prosthetic devices derived from krebs-cycle dicarboxylic acids and diols |
JPS60100516A (ja) * | 1983-11-04 | 1985-06-04 | Takeda Chem Ind Ltd | 徐放型マイクロカプセルの製造法 |
EP0342278B1 (en) * | 1984-03-06 | 1996-09-04 | United States Surgical Corporation | A process for making two-phase compositions for absorbable surgical devices |
US4649042A (en) * | 1984-05-31 | 1987-03-10 | Eli Lilly And Company | Rumen delivery device |
CA1256638A (en) * | 1984-07-06 | 1989-06-27 | Motoaki Tanaka | Polymer and its production |
JPH0678425B2 (ja) * | 1984-07-06 | 1994-10-05 | 和光純薬工業株式会社 | 重合体の新規製造法 |
DE3428640A1 (de) * | 1984-08-03 | 1986-02-06 | Akzo Gmbh, 5600 Wuppertal | Mikroporoese, pulverfoermige polylactide |
US4595713A (en) * | 1985-01-22 | 1986-06-17 | Hexcel Corporation | Medical putty for tissue augmentation |
EP0190833B1 (en) * | 1985-02-07 | 1991-03-27 | Takeda Chemical Industries, Ltd. | Method for producing microcapsule |
JP2551756B2 (ja) * | 1985-05-07 | 1996-11-06 | 武田薬品工業株式会社 | ポリオキシカルボン酸エステルおよびその製造法 |
US5618547A (en) * | 1985-05-20 | 1997-04-08 | British Technology Group Limited | Control of ectoparasites |
JPH0610252B2 (ja) * | 1985-08-21 | 1994-02-09 | 和光純薬工業株式会社 | 重合体の製造法 |
US5061281A (en) * | 1985-12-17 | 1991-10-29 | Allied-Signal Inc. | Bioresorbable polymers and implantation devices thereof |
GB8609537D0 (en) * | 1986-04-18 | 1986-05-21 | Ici Plc | Polyesters |
US4744365A (en) * | 1986-07-17 | 1988-05-17 | United States Surgical Corporation | Two-phase compositions for absorbable surgical devices |
DE3641692A1 (de) * | 1986-12-06 | 1988-06-09 | Boehringer Ingelheim Kg | Katalysatorfreie resorbierbare homopolymere und copolymere |
SE8701479L (sv) * | 1987-04-09 | 1988-10-10 | Carbomatrix Ab | Metod foer inneslutning av biologiskt verksamma preparat samt anvaendning daerav |
US4804691A (en) * | 1987-08-28 | 1989-02-14 | Richards Medical Company | Method for making a biodegradable adhesive for soft living tissue |
OA09249A (fr) * | 1988-12-19 | 1992-06-30 | Lilly Co Eli | Composés de macrolides. |
JP2986509B2 (ja) * | 1989-05-26 | 1999-12-06 | 三井化学株式会社 | 変性ポリエステル樹脂組成物、その製造方法、およびその用途 |
US5302694A (en) * | 1990-02-21 | 1994-04-12 | Boehringer Ingelheim Gmbh | Process for preparing polyesters based on hydroxycarboxylic acids |
DE4005415C2 (de) * | 1990-02-21 | 1996-04-11 | Boehringer Ingelheim Kg | Verfahren zum Herstellen von Polyestern auf der Basis von Hydroxycarbonsäuren |
CA2040141C (en) * | 1990-04-13 | 2002-05-14 | Minoru Yamada | Biodegradable high-molecular polymers, production and use therof |
MY108621A (en) * | 1990-08-01 | 1996-10-31 | Novartis Ag | Polylactide preparation and purification |
US6353030B1 (en) * | 1990-08-01 | 2002-03-05 | Novartis Ag | Relating to organic compounds |
US5593423A (en) * | 1990-10-22 | 1997-01-14 | United States Surgical Corporation | Skin fastener |
US5108422A (en) * | 1990-10-22 | 1992-04-28 | United States Surgical Corporation | Skin fastener |
US5320624A (en) * | 1991-02-12 | 1994-06-14 | United States Surgical Corporation | Blends of glycolide and/or lactide polymers and caprolactone and/or trimethylene carbonate polymers and absorbable surgical devices made therefrom |
US6228954B1 (en) | 1991-02-12 | 2001-05-08 | United States Surgical Corporation | Blends of glycolide and/or lactide polymers and caprolactone and/or trimethylene carbonate polymers and absorabable surgical devices made therefrom |
IT1249045B (it) * | 1991-02-21 | 1995-02-11 | Himont Inc | Processo per la sintesi allo stato solido di polimeri dell'acido lattico e prodotti cosi ottenuti |
US5232648A (en) * | 1991-07-19 | 1993-08-03 | United States Surgical Corporation | Bioabsorbable melt spun fiber based on glycolide-containing copolymer |
US5206341A (en) | 1991-11-21 | 1993-04-27 | Southern Research Institute | Polymers from hydroxy acids and polycarboxylic acids |
KR970007322B1 (ko) * | 1991-12-19 | 1997-05-07 | 미쓰이도오아쓰 가가쿠 가부시키가이샤 | 폴리히드록시 카르복실산 및 그 제조방법 |
US5247058A (en) * | 1992-01-24 | 1993-09-21 | Cargill, Incorporated | Continuous process for manufacture of lactide polymers with controlled optical purity |
US6005067A (en) | 1992-01-24 | 1999-12-21 | Cargill Incorporated | Continuous process for manufacture of lactide polymers with controlled optical purity |
US5142023A (en) * | 1992-01-24 | 1992-08-25 | Cargill, Incorporated | Continuous process for manufacture of lactide polymers with controlled optical purity |
US5258488A (en) * | 1992-01-24 | 1993-11-02 | Cargill, Incorporated | Continuous process for manufacture of lactide polymers with controlled optical purity |
US6326458B1 (en) | 1992-01-24 | 2001-12-04 | Cargill, Inc. | Continuous process for the manufacture of lactide and lactide polymers |
US5247059A (en) * | 1992-01-24 | 1993-09-21 | Cargill, Incorporated | Continuous process for the manufacture of a purified lactide from esters of lactic acid |
US5338822A (en) * | 1992-10-02 | 1994-08-16 | Cargill, Incorporated | Melt-stable lactide polymer composition and process for manufacture thereof |
BR9305658A (pt) * | 1992-10-02 | 1996-11-26 | Cargill Inc | Papel tendo um polímero de lactideo estável em fusao e processo para sua produçao |
JP3447289B2 (ja) * | 1992-10-02 | 2003-09-16 | カーギル, インコーポレイテッド | 溶融安定性ラクチドポリマー繊維及びその製造方法 |
US6005068A (en) * | 1992-10-02 | 1999-12-21 | Cargill Incorporated | Melt-stable amorphous lactide polymer film and process for manufacture thereof |
US5591606A (en) * | 1992-11-06 | 1997-01-07 | Dowelanco | Process for the production of A83543 compounds with Saccharopolyspora spinosa |
TW333456B (en) * | 1992-12-07 | 1998-06-11 | Takeda Pharm Ind Co Ltd | A pharmaceutical composition of sustained-release preparation the invention relates to a pharmaceutical composition of sustained-release preparation which comprises a physiologically active peptide. |
US5444143A (en) * | 1992-12-25 | 1995-08-22 | Mitsui Toatsu Chemicals, Inc. | Preparation process of polyhydroxycarboxylic acid |
DE69402308T2 (de) * | 1993-03-12 | 1997-10-23 | Dowelanco | Neue a83543 verbindungen und verfahren zu ihrer herstellung |
KR970002523B1 (en) * | 1993-04-24 | 1997-03-05 | Korea Inst Sci & Tech | Biodegradable polylactic acid having improved properties and method for manufacturing the same |
US5522841A (en) * | 1993-05-27 | 1996-06-04 | United States Surgical Corporation | Absorbable block copolymers and surgical articles fabricated therefrom |
US5403347A (en) * | 1993-05-27 | 1995-04-04 | United States Surgical Corporation | Absorbable block copolymers and surgical articles fabricated therefrom |
WO1995010577A1 (en) * | 1993-10-15 | 1995-04-20 | H.B. Fuller Licensing & Financing Inc. | Biodegradable/compostable hot melt adhesives comprising polyester of lactic acid |
US5431679A (en) * | 1994-03-10 | 1995-07-11 | United States Surgical Corporation | Absorbable block copolymers and surgical articles fabricated therefrom |
US5543202A (en) * | 1994-03-14 | 1996-08-06 | Kimberly-Clark Corporation | Process for producing a crimp-bonded fibrous cellulosic laminate |
CN1058736C (zh) * | 1994-05-27 | 2000-11-22 | 北京市星辰现代控制工程研究所 | 生物降解组合物及其制备方法和应用 |
US5578662A (en) | 1994-07-22 | 1996-11-26 | United States Surgical Corporation | Bioabsorbable branched polymers containing units derived from dioxanone and medical/surgical devices manufactured therefrom |
US6339130B1 (en) * | 1994-07-22 | 2002-01-15 | United States Surgical Corporation | Bioabsorbable branched polymers containing units derived from dioxanone and medical/surgical devices manufactured therefrom |
US6206908B1 (en) | 1994-09-16 | 2001-03-27 | United States Surgical Corporation | Absorbable polymer and surgical articles fabricated therefrom |
CA2158420C (en) | 1994-09-16 | 2007-05-01 | Mark S. Roby | Absorbable polymer and surgical articles fabricated therefrom |
US5618313A (en) * | 1994-10-11 | 1997-04-08 | United States Surgical Corporation | Absorbable polymer and surgical articles fabricated therefrom |
US5770683A (en) * | 1994-11-02 | 1998-06-23 | Mitsui Toatsu Chemicals, Inc. | Preparation process of polyhydroxycarboxylic acid |
EP0786259B1 (en) * | 1996-01-19 | 2004-03-31 | United States Surgical Corporation | Absorbable polymer blends and surgical articles fabricated therefrom |
US6001981A (en) * | 1996-06-13 | 1999-12-14 | Dow Agrosciences Llc | Synthetic modification of Spinosyn compounds |
US5756651A (en) * | 1996-07-17 | 1998-05-26 | Chronopol, Inc. | Impact modified polylactide |
US6191236B1 (en) | 1996-10-11 | 2001-02-20 | United States Surgical Corporation | Bioabsorbable suture and method of its manufacture |
US6007565A (en) * | 1997-09-05 | 1999-12-28 | United States Surgical | Absorbable block copolymers and surgical articles fabricated therefrom |
US6277927B1 (en) | 1997-11-26 | 2001-08-21 | United States Surgical Corporation | Absorbable block copolymers and surgical articles fabricated therefrom |
JPH11203837A (ja) | 1998-01-16 | 1999-07-30 | Sony Corp | 編集システムおよび編集方法 |
AR023940A1 (es) | 2000-05-03 | 2002-09-04 | Eriochem Sa | Procedimiento para la produccion de microcapsulas de liberacion prolongada de peptidos solubles en agua |
ATE322513T1 (de) * | 2000-08-07 | 2006-04-15 | Wako Pure Chem Ind Ltd | Milchsäurepolymer und verfahren zu dessen herstellung |
AU9051501A (en) | 2000-08-16 | 2002-02-25 | Tyco Healthcare | High consistency absorbable polymeric resin |
TW200526267A (en) * | 2001-06-29 | 2005-08-16 | Takeda Chemical Industries Ltd | Controlled release composition and method of producing the same |
JP4612239B2 (ja) * | 2001-07-18 | 2011-01-12 | 三井化学株式会社 | 生体吸収性ポリヒドロキシカルボン酸の製造方法 |
US7163545B2 (en) * | 2002-07-29 | 2007-01-16 | Mayo Foundation For Medical Education And Research | Spinal cord surgical implant |
KR100684682B1 (ko) * | 2002-09-24 | 2007-02-22 | 아사히 가세이 케미칼즈 가부시키가이샤 | 글리콜산 공중합체 및 그의 제조 방법 |
EP1440992A1 (fr) * | 2003-01-21 | 2004-07-28 | Société de Conseils de Recherches et d'Applications Scientifiques ( S.C.R.A.S.) | Système catalytique de (co)polymérisation du lactide et du glycolide |
FR2867698B1 (fr) * | 2004-03-16 | 2007-11-16 | Beaufour Ipsen S C R A S | Systeme catalttique de (co) oligomerisation du lactide et du glycolide |
DE112005000965T5 (de) * | 2004-04-28 | 2007-03-22 | Keio University | Depolymerisationsverfahren für Polymere mit Esterbindung in der Hauptkette und Verfahren zur Herstellung von Polymeren mit Esterbindung in der Hauptkette aus dem Depolymerisationsprodukt |
MY148370A (en) | 2006-12-18 | 2013-04-15 | Takeda Pharmaceutical | Sustained-release composition and method for producing the same |
CN101284883B (zh) * | 2008-05-14 | 2011-02-16 | 西北大学 | 聚乳酸-壳聚糖接枝共聚物的制备方法 |
RU2404198C2 (ru) * | 2008-11-12 | 2010-11-20 | Федеральное государственное унитарное предприятие "Ордена Трудового Красного Знамени Научно-исследовательский физико-химический институт имени Л.Я. Карпова" | Способ получения сополимеров стирола с молочной кислотой |
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 |
CA3073842A1 (en) | 2017-08-31 | 2019-03-07 | Evonik Corporation | Improved resorbable polymer purification process |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2362511A (en) * | 1939-11-21 | 1944-11-14 | Du Pont | Modified glycolide resins |
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 |
US3268487A (en) * | 1963-12-23 | 1966-08-23 | Shell Oil Co | Process for polymerization of lactides |
US3535419A (en) * | 1965-12-15 | 1970-10-20 | Syntex Corp | Veterinary compositions and methods |
US3442871A (en) * | 1966-05-04 | 1969-05-06 | American Cyanamid Co | Process for polymerizing a glycolide |
US3458622A (en) * | 1967-04-07 | 1969-07-29 | Squibb & Sons Inc | Controlled release tablet |
US3887699A (en) * | 1969-03-24 | 1975-06-03 | Seymour Yolles | Biodegradable polymeric article for dispensing drugs |
US3773919A (en) * | 1969-10-23 | 1973-11-20 | Du Pont | Polylactide-drug mixtures |
BE758156R (fr) * | 1970-05-13 | 1971-04-28 | Ethicon Inc | Element de suture absorbable et sa |
US3736646A (en) * | 1971-10-18 | 1973-06-05 | American Cyanamid Co | Method of attaching surgical needles to multifilament polyglycolic acid absorbable sutures |
US3839297A (en) * | 1971-11-22 | 1974-10-01 | Ethicon Inc | Use of stannous octoate catalyst in the manufacture of l(-)lactide-glycolide copolymer sutures |
US3982543A (en) * | 1973-04-24 | 1976-09-28 | American Cyanamid Company | Reducing capillarity of polyglycolic acid sutures |
US3991766A (en) * | 1973-05-31 | 1976-11-16 | American Cyanamid Company | Controlled release of medicaments using polymers from glycolic acid |
US4144317A (en) * | 1975-05-30 | 1979-03-13 | Alza Corporation | Device consisting of copolymer having acetoxy groups for delivering drugs |
US4010196A (en) * | 1975-06-25 | 1977-03-01 | American Home Products Corporation | Linear polyester salts |
US4011312A (en) * | 1975-06-25 | 1977-03-08 | American Home Products Corporation | Prolonged release drug form for the treatment of bovine mastitis |
ZA782039B (en) * | 1977-05-23 | 1979-09-26 | American Cyanamid Co | Surgical articles |
-
1979
- 1979-09-12 US US06/075,296 patent/US4273920A/en not_active Expired - Lifetime
-
1980
- 1980-09-09 GR GR62846A patent/GR69961B/el unknown
- 1980-09-09 RO RO80102132A patent/RO80864A/ro unknown
- 1980-09-09 AU AU62166/80A patent/AU539130B2/en not_active Expired
- 1980-09-09 PH PH24558A patent/PH15272A/en unknown
- 1980-09-09 AR AR282459A patent/AR221173A1/es active
- 1980-09-09 NZ NZ194902A patent/NZ194902A/xx unknown
- 1980-09-09 PL PL1980226653A patent/PL129779B1/pl unknown
- 1980-09-10 FR FR8019582A patent/FR2464973A1/fr active Granted
- 1980-09-10 AT AT0455380A patent/AT380689B/de not_active IP Right Cessation
- 1980-09-10 GT GT198065361A patent/GT198065361A/es unknown
- 1980-09-10 CS CS806134A patent/CS221979B2/cs unknown
- 1980-09-10 CH CH6807/80A patent/CH648048A5/fr not_active IP Right Cessation
- 1980-09-10 CA CA000360018A patent/CA1185048A/en not_active Expired
- 1980-09-10 FI FI802840A patent/FI66412C/fi not_active IP Right Cessation
- 1980-09-10 IL IL61024A patent/IL61024A/xx not_active IP Right Cessation
- 1980-09-10 EG EG559/80A patent/EG14381A/xx active
- 1980-09-11 BE BE1/9957A patent/BE885182A/fr not_active IP Right Cessation
- 1980-09-11 DE DE8080303198T patent/DE3068116D1/de not_active Expired
- 1980-09-11 HU HU802235A patent/HU191807B/hu not_active IP Right Cessation
- 1980-09-11 ZA ZA00805629A patent/ZA805629B/xx unknown
- 1980-09-11 GB GB8029392A patent/GB2058808B/en not_active Expired
- 1980-09-11 PT PT71794A patent/PT71794B/pt not_active IP Right Cessation
- 1980-09-11 ES ES494974A patent/ES8106542A1/es not_active Expired
- 1980-09-11 IT IT24607/80A patent/IT1141040B/it active
- 1980-09-11 DK DK387380A patent/DK155093C/da not_active IP Right Cessation
- 1980-09-11 BG BG049032A patent/BG41132A3/xx unknown
- 1980-09-11 EP EP80303198A patent/EP0026599B1/en not_active Expired
- 1980-09-11 JP JP12664280A patent/JPS5645920A/ja active Granted
- 1980-09-11 IE IE1902/80A patent/IE50236B1/en not_active IP Right Cessation
- 1980-09-12 DD DD80223870A patent/DD153125A5/de not_active IP Right Cessation
-
1988
- 1988-04-26 JP JP63107377A patent/JPH0198617A/ja active Granted
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