DE3068116D1 - Copolymer from lactic acid and glycolic acid and process for making same - Google Patents

Copolymer from lactic acid and glycolic acid and process for making same

Info

Publication number
DE3068116D1
DE3068116D1 DE8080303198T DE3068116T DE3068116D1 DE 3068116 D1 DE3068116 D1 DE 3068116D1 DE 8080303198 T DE8080303198 T DE 8080303198T DE 3068116 T DE3068116 T DE 3068116T DE 3068116 D1 DE3068116 D1 DE 3068116D1
Authority
DE
Germany
Prior art keywords
copolymer
making same
acid
lactic acid
glycolic 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
Application number
DE8080303198T
Other languages
English (en)
Inventor
Robert Stephen Nevin
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.)
Eli Lilly and Co
Original Assignee
Eli Lilly and Co
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 Eli Lilly and Co filed Critical Eli Lilly and Co
Application granted granted Critical
Publication of DE3068116D1 publication Critical patent/DE3068116D1/de
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/78Preparation processes
    • C08G63/82Preparation processes characterised by the catalyst used
    • C08G63/823Preparation processes characterised by the catalyst used for the preparation of polylactones or polylactides
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K47/00Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
    • A61K47/30Macromolecular organic or inorganic compounds, e.g. inorganic polyphosphates
    • A61K47/34Macromolecular 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
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/02Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
    • C08G63/06Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from hydroxycarboxylic acids
DE8080303198T 1979-09-12 1980-09-11 Copolymer from lactic acid and glycolic acid and process for making same Expired DE3068116D1 (en)

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
DE3068116D1 true DE3068116D1 (en) 1984-07-12

Family

ID=22124778

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8080303198T Expired DE3068116D1 (en) 1979-09-12 1980-09-11 Copolymer from lactic acid and glycolic acid and process for making same

Country Status (31)

Country Link
US (1) US4273920A (de)
EP (1) EP0026599B1 (de)
JP (2) JPS5645920A (de)
AR (1) AR221173A1 (de)
AT (1) AT380689B (de)
AU (1) AU539130B2 (de)
BE (1) BE885182A (de)
BG (1) BG41132A3 (de)
CA (1) CA1185048A (de)
CH (1) CH648048A5 (de)
CS (1) CS221979B2 (de)
DD (1) DD153125A5 (de)
DE (1) DE3068116D1 (de)
DK (1) DK155093C (de)
EG (1) EG14381A (de)
ES (1) ES494974A0 (de)
FI (1) FI66412C (de)
FR (1) FR2464973A1 (de)
GB (1) GB2058808B (de)
GR (1) GR69961B (de)
GT (1) GT198065361A (de)
HU (1) HU191807B (de)
IE (1) IE50236B1 (de)
IL (1) IL61024A (de)
IT (1) IT1141040B (de)
NZ (1) NZ194902A (de)
PH (1) PH15272A (de)
PL (1) PL129779B1 (de)
PT (1) PT71794B (de)
RO (1) RO80864A (de)
ZA (1) ZA805629B (de)

Families Citing this family (88)

* Cited by examiner, † Cited by third party
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
ES2091185T3 (es) * 1984-03-06 1996-11-01 United States Surgical Corp Un procedimiento para la preparacion de composiciones bifasicas para dispositivos quirurgicos absorbibles.
US4649042A (en) * 1984-05-31 1987-03-10 Eli Lilly And Company Rumen delivery device
CA1236641A (en) * 1984-07-06 1988-05-10 Motoaki Tanaka Copolymer of lactic acid and glycolic acid and method for producing same
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 (de) * 1985-02-07 1991-03-27 Takeda Chemical Industries, Ltd. Verfahren zur Herstellung von Mikrokapseln
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
PE5591A1 (es) * 1988-12-19 1991-02-15 Lilly Co Eli Un nuevo grupo de compuestos de macrolida
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
ATE168391T1 (de) * 1990-04-13 1998-08-15 Takeda Chemical Industries Ltd Biologisch abbaubare hochmolekulare polymere, ihre herstellung und ihre verwendung
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
US5108422A (en) * 1990-10-22 1992-04-28 United States Surgical Corporation Skin fastener
US5593423A (en) * 1990-10-22 1997-01-14 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
EP0572675B1 (de) * 1991-12-19 1999-09-22 Mitsui Chemicals, Inc. Polyhydroxycarbonsäure und verfahren zu ihrer herstellung
US6005067A (en) * 1992-01-24 1999-12-21 Cargill Incorporated Continuous process for manufacture of lactide polymers with controlled optical purity
US5247058A (en) * 1992-01-24 1993-09-21 Cargill, Incorporated Continuous process for manufacture of lactide polymers with controlled optical purity
US5247059A (en) * 1992-01-24 1993-09-21 Cargill, Incorporated Continuous process for the manufacture of a purified lactide from esters of lactic acid
US5258488A (en) * 1992-01-24 1993-11-02 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
US6326458B1 (en) 1992-01-24 2001-12-04 Cargill, Inc. Continuous process for the manufacture of lactide and lactide polymers
PT615555E (pt) * 1992-10-02 2001-09-28 Cargill Inc Tecido de polimero de lactido estavel no estado de massa fundida e processo para a sua preparacao
US5338822A (en) * 1992-10-02 1994-08-16 Cargill, Incorporated Melt-stable lactide polymer composition and process for manufacture thereof
US6005068A (en) * 1992-10-02 1999-12-21 Cargill Incorporated Melt-stable amorphous lactide polymer film and process for manufacture thereof
DE69322155T2 (de) * 1992-10-02 1999-08-19 Cargill Inc Papier mit einer beschichtung aus schmelzstabilem polymer und dessen verfahren zur herstellung
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
DK0688332T3 (da) * 1993-03-12 1997-10-13 Dowelanco Nye A83543-forbindelser og fremgangsmåder til fremstilling heraf.
KR970002523B1 (en) * 1993-04-24 1997-03-05 Korea Inst Sci & Tech Biodegradable polylactic acid having improved properties and method for manufacturing the same
US5403347A (en) * 1993-05-27 1995-04-04 United States Surgical Corporation Absorbable block copolymers and surgical articles fabricated therefrom
US5522841A (en) * 1993-05-27 1996-06-04 United States Surgical Corporation Absorbable block copolymers and surgical articles fabricated therefrom
DE69422053T2 (de) 1993-10-15 2000-06-29 Fuller H B Licensing Financ Biologisch abbaubare bzw. kompostierbare hot melt-klebstoffe, enthaltend polyester auf basis von milchsäure
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
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
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
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
DE69728307T2 (de) * 1996-01-19 2005-02-17 United States Surgical Corp., Norwalk Absorbierbare polymer Mischungen und chirurgische Gegenstände daraus
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
EP1310517B2 (de) * 2000-08-07 2010-11-17 Wako Pure Chemical Industries, Ltd. Milchsäurepolymer und verfahren zu dessen herstellung
ES2311542T3 (es) 2000-08-16 2009-02-16 Tyco Healthcare Group Lp Resina polimerica absorbible de gran consistencia.
TWI332407B (en) * 2001-06-29 2010-11-01 Takeda Chemical Industries Ltd Controlled release composition and method of producting 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
ATE369388T1 (de) * 2002-09-24 2007-08-15 Asahi Kasei Chemicals Corp Glycolsaüre copolymer und verfahren zu dessen herstellung
EP1440992A1 (de) * 2003-01-21 2004-07-28 Société de Conseils de Recherches et d'Applications Scientifiques ( S.C.R.A.S.) Katalysatorzusammensetzung für die (Co)polymerisation von Lactid und Glycolid
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
WO2005105908A1 (ja) * 2004-04-28 2005-11-10 Keio University 主鎖にエステル結合を有するポリマーの解重合方法及び解重合生成物から主鎖にエステル結合を有するポリマーを製造する方法
WO2008075762A1 (en) 2006-12-18 2008-06-26 Takeda Pharmaceutical Company Limited 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
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
SG11202001688WA (en) 2017-08-31 2020-03-30 Evonik Corp Improved resorbable polymer purification process

Family Cites Families (19)

* Cited by examiner, † Cited by third party
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
JPS4936597A (de) * 1972-08-07 1974-04-04
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

Also Published As

Publication number Publication date
FR2464973A1 (fr) 1981-03-20
GR69961B (de) 1982-07-22
DK155093B (da) 1989-02-06
PH15272A (en) 1982-11-02
IT1141040B (it) 1986-10-01
IL61024A0 (en) 1980-11-30
GB2058808B (en) 1983-11-16
PL226653A1 (de) 1981-10-16
CS221979B2 (en) 1983-04-29
GB2058808A (en) 1981-04-15
ATA455380A (de) 1985-11-15
ZA805629B (en) 1982-04-28
FR2464973B1 (de) 1983-06-10
JPH0198617A (ja) 1989-04-17
FI66412C (fi) 1984-10-10
PL129779B1 (en) 1984-06-30
FI802840A (fi) 1981-03-13
AU539130B2 (en) 1984-09-13
AR221173A1 (es) 1980-12-30
DD153125A5 (de) 1981-12-23
IT8024607A0 (it) 1980-09-11
DK155093C (da) 1989-06-19
US4273920A (en) 1981-06-16
BE885182A (fr) 1981-03-11
IE50236B1 (en) 1986-03-05
FI66412B (fi) 1984-06-29
IL61024A (en) 1983-02-23
DK387380A (da) 1981-03-13
JPH0121166B2 (de) 1989-04-20
HU191807B (en) 1987-04-28
IE801902L (en) 1981-03-12
ES8106542A1 (es) 1981-08-16
BG41132A3 (en) 1987-04-15
GT198065361A (es) 1982-03-04
AT380689B (de) 1986-06-25
NZ194902A (en) 1983-05-31
EG14381A (en) 1983-12-31
EP0026599B1 (de) 1984-06-06
PT71794A (en) 1980-10-01
RO80864A (ro) 1983-02-01
EP0026599A1 (de) 1981-04-08
JPH0445525B2 (de) 1992-07-27
PT71794B (en) 1981-07-07
CH648048A5 (fr) 1985-02-28
AU6216680A (en) 1981-03-19
ES494974A0 (es) 1981-08-16
CA1185048A (en) 1985-04-02
JPS5645920A (en) 1981-04-25

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Free format text: SPOTT, G., DIPL.-CHEM. DR.RER.NAT., PAT.-ANW., 8000 MUENCHEN

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