IT1256918B - Procedimento per la produzione di poli acido lattico. - Google Patents

Procedimento per la produzione di poli acido lattico.

Info

Publication number
IT1256918B
IT1256918B ITTO920676A ITTO920676A IT1256918B IT 1256918 B IT1256918 B IT 1256918B IT TO920676 A ITTO920676 A IT TO920676A IT TO920676 A ITTO920676 A IT TO920676A IT 1256918 B IT1256918 B IT 1256918B
Authority
IT
Italy
Prior art keywords
lactic acid
production
poles
polycondensation
molecular weight
Prior art date
Application number
ITTO920676A
Other languages
English (en)
Inventor
Catia Bastioli
Original Assignee
Mini Ricerca Scient Tecnolog
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 Mini Ricerca Scient Tecnolog filed Critical Mini Ricerca Scient Tecnolog
Publication of ITTO920676A0 publication Critical patent/ITTO920676A0/it
Priority to ITTO920676A priority Critical patent/IT1256918B/it
Priority to CA002141579A priority patent/CA2141579A1/en
Priority to PCT/EP1993/002033 priority patent/WO1994003522A1/en
Priority to ES93917701T priority patent/ES2099464T3/es
Priority to DE69308143T priority patent/DE69308143T2/de
Priority to JP6504991A priority patent/JPH09505323A/ja
Priority to US08/374,733 priority patent/US5543494A/en
Priority to AT93917701T priority patent/ATE148902T1/de
Priority to EP93917701A priority patent/EP0654057B1/en
Publication of ITTO920676A1 publication Critical patent/ITTO920676A1/it
Application granted granted Critical
Publication of IT1256918B publication Critical patent/IT1256918B/it

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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Biological Depolymerization Polymers (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Catalysts (AREA)

Abstract

Procedimento per la produzione di poli acido lattico ad alto peso molecolare, mediante policondensazione del monomero libero, in cui la policondensazione è effettuata in presenza di una quantità cataliticamente efficace di ione ferro, per ottenere come principali prodotti poli acido lattico ad alto peso molecolare e lattide.
ITTO920676A 1992-08-04 1992-08-04 Procedimento per la produzione di poli acido lattico. IT1256918B (it)

Priority Applications (9)

Application Number Priority Date Filing Date Title
ITTO920676A IT1256918B (it) 1992-08-04 1992-08-04 Procedimento per la produzione di poli acido lattico.
DE69308143T DE69308143T2 (de) 1992-08-04 1993-07-29 Verfahren zur herstellung von polymilchsäure
PCT/EP1993/002033 WO1994003522A1 (en) 1992-08-04 1993-07-29 A process for the production of poly(lactic acid)
ES93917701T ES2099464T3 (es) 1992-08-04 1993-07-29 Procedimiento para la produccion de acido (poli)lactico.
CA002141579A CA2141579A1 (en) 1992-08-04 1993-07-29 A process for the production of poly(lactic acid)
JP6504991A JPH09505323A (ja) 1992-08-04 1993-07-29 ポリ乳酸の製造法
US08/374,733 US5543494A (en) 1992-08-04 1993-07-29 Process for the production of poly(lactic acid)
AT93917701T ATE148902T1 (de) 1992-08-04 1993-07-29 Verfahren zur herstellung von polymilchsäure
EP93917701A EP0654057B1 (en) 1992-08-04 1993-07-29 A process for the production of poly(lactic acid)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITTO920676A IT1256918B (it) 1992-08-04 1992-08-04 Procedimento per la produzione di poli acido lattico.

Publications (3)

Publication Number Publication Date
ITTO920676A0 ITTO920676A0 (it) 1992-08-04
ITTO920676A1 ITTO920676A1 (it) 1994-02-04
IT1256918B true IT1256918B (it) 1995-12-27

Family

ID=11410669

Family Applications (1)

Application Number Title Priority Date Filing Date
ITTO920676A IT1256918B (it) 1992-08-04 1992-08-04 Procedimento per la produzione di poli acido lattico.

Country Status (9)

Country Link
US (1) US5543494A (it)
EP (1) EP0654057B1 (it)
JP (1) JPH09505323A (it)
AT (1) ATE148902T1 (it)
CA (1) CA2141579A1 (it)
DE (1) DE69308143T2 (it)
ES (1) ES2099464T3 (it)
IT (1) IT1256918B (it)
WO (1) WO1994003522A1 (it)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5359026A (en) * 1993-07-30 1994-10-25 Cargill, Incorporated Poly(lactide) copolymer and process for manufacture thereof
US5770683A (en) * 1994-11-02 1998-06-23 Mitsui Toatsu Chemicals, Inc. Preparation process of polyhydroxycarboxylic acid
DE19520093A1 (de) * 1995-06-01 1996-12-05 Bayer Ag Stärke und Polyurethane enthaltende Polymerblends
US5719256A (en) * 1995-10-19 1998-02-17 Mitsu Toatsu Chemicals, Inc. Process for preparing polycondensation polymer compound
FI103581B1 (fi) * 1996-11-11 1999-07-30 Neste Oy Menetelmä polyhydroksihappojen valmistamiseksi
DE19723807C2 (de) * 1997-06-06 2003-04-24 Ferring Gmbh Verfahren zur Herstellung von Copolyestern
EA004250B1 (ru) * 1999-08-09 2004-02-26 Амато Фармасьютикал Продактс, Лтд. Терапевтический агент для диабета
JP2002020474A (ja) * 2000-07-13 2002-01-23 Daicel Chem Ind Ltd ポリエステルの製造装置
US6839488B2 (en) * 2001-09-10 2005-01-04 California Institute Of Technology Tunable resonant cavity based on the field effect in semiconductors
CN1308367C (zh) * 2005-09-09 2007-04-04 浙江大学 一种制备羟基酸缩聚物的缩合聚合方法
US9091004B2 (en) 2006-07-14 2015-07-28 Kimberly-Clark Worldwide, Inc. Biodegradable polylactic acid for use in nonwoven webs
MX2009000526A (es) 2006-07-14 2009-01-27 Kimberly Clark Co Copoliester alifatico-aromatico biodegradable para usarse en telas no tejidas.
EP2044251B1 (en) 2006-07-14 2019-10-02 NatureWorks LLC Biodegradable aliphatic polyester for use in nonwoven webs
WO2008073099A1 (en) * 2006-12-15 2008-06-19 Kimberly-Clark Worldwide, Inc. Biodegradable polyesters for use in forming fibers
EP2064261A1 (en) * 2006-12-15 2009-06-03 Kimberly-Clark Worldwide, Inc. Biodegradable polylactic acids for use in forming fibers
WO2009024836A1 (en) * 2007-08-22 2009-02-26 Kimberly-Clark Worldwide, Inc. Multicomponent biodegradable filaments and nonwoven webs formed therefrom
US20100323575A1 (en) * 2007-12-13 2010-12-23 Aimin He Biodegradable fibers formed from a thermoplastic composition containing polylactic acid and a polyether copolymer
KR101526636B1 (ko) * 2008-05-30 2015-06-05 킴벌리-클라크 월드와이드, 인크. 폴리락트산 섬유
US8349346B2 (en) * 2008-11-18 2013-01-08 Koken Ltd. Antimicrobial composition, process for preparing the same, and utilization thereof
ES2524988T3 (es) 2010-02-26 2014-12-16 Council Of Scientific & Industrial Research Procedimiento mejorado para la preparación de L-lactida de rendimiento químico y pureza óptica altos
US8461262B2 (en) 2010-12-07 2013-06-11 Kimberly-Clark Worldwide, Inc. Polylactic acid fibers
LV14490B (lv) 2011-12-23 2012-05-20 Rīgas Tehniskā Universitāte Selektīvi katalizatori pienskābes iegūšanai no glicerīna
US9758463B1 (en) 2014-09-17 2017-09-12 Nippon Shokubai Co., Ltd. Method for producing vapor composition containing lactic acid

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3322791A (en) * 1963-09-26 1967-05-30 Ethicon Inc Preparation of optically active lactides
GB1142538A (en) * 1967-11-10 1969-02-12 Shell Int Research Polymerisation of pivalolactone
US4429105A (en) * 1983-02-22 1984-01-31 Celanese Corporation Process for preparing a polyester of hydroxy naphthoic acid and hydroxy benzoic acid
EP0261572A1 (de) * 1986-09-20 1988-03-30 Boehringer Ingelheim Kg Verfahren zur Herstellung von Lactid
DE3778111D1 (de) * 1986-10-24 1992-05-14 Boehringer Ingelheim Kg Verfahren zur herstellung und reinigung thermolabiler verbindungen.
EP0275581B1 (en) * 1986-12-19 1992-08-12 Akzo N.V. Preparation of polylactic acid and copolymers thereof
JP2714454B2 (ja) * 1988-11-07 1998-02-16 三井東圧化学株式会社 生体吸収性ポリエステルの製造方法
JPH032948A (ja) * 1989-05-30 1991-01-09 Citizen Watch Co Ltd 間欠動作の制御方式
US5302694A (en) * 1990-02-21 1994-04-12 Boehringer Ingelheim Gmbh Process for preparing polyesters based on hydroxycarboxylic acids
NL9001641A (nl) * 1990-07-19 1992-02-17 Stamicarbon Werkwijze voor het maken van polymere producten van cyclische esters.
US5206341A (en) * 1991-11-21 1993-04-27 Southern Research Institute Polymers from hydroxy acids and polycarboxylic acids
FI933471A0 (fi) * 1991-12-19 1993-08-05 Mitsui Toatsu Chemicals Polyhydroxikarboxylsyra och foerfarande foer dess framstaellning
US5247059A (en) * 1992-01-24 1993-09-21 Cargill, Incorporated Continuous process for the manufacture of a purified lactide from esters of lactic acid

Also Published As

Publication number Publication date
DE69308143D1 (de) 1997-03-27
CA2141579A1 (en) 1994-02-17
US5543494A (en) 1996-08-06
ITTO920676A1 (it) 1994-02-04
ITTO920676A0 (it) 1992-08-04
EP0654057B1 (en) 1997-02-12
WO1994003522A1 (en) 1994-02-17
EP0654057A1 (en) 1995-05-24
ES2099464T3 (es) 1997-05-16
JPH09505323A (ja) 1997-05-27
DE69308143T2 (de) 1997-08-07
ATE148902T1 (de) 1997-02-15

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19950831