IT1249045B - Processo per la sintesi allo stato solido di polimeri dell'acido lattico e prodotti cosi ottenuti - Google Patents

Processo per la sintesi allo stato solido di polimeri dell'acido lattico e prodotti cosi ottenuti

Info

Publication number
IT1249045B
IT1249045B ITMI910450A ITMI910450A IT1249045B IT 1249045 B IT1249045 B IT 1249045B IT MI910450 A ITMI910450 A IT MI910450A IT MI910450 A ITMI910450 A IT MI910450A IT 1249045 B IT1249045 B IT 1249045B
Authority
IT
Italy
Prior art keywords
lactic acid
solid state
products
synthesis process
acid polymers
Prior art date
Application number
ITMI910450A
Other languages
English (en)
Inventor
Gabriele Perego
Enrico Albizzati
Original Assignee
Himont 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 Himont Inc filed Critical Himont Inc
Publication of ITMI910450A0 publication Critical patent/ITMI910450A0/it
Priority to ITMI910450A priority Critical patent/IT1249045B/it
Priority to EP92102837A priority patent/EP0500098B1/en
Priority to ES92102837T priority patent/ES2097225T3/es
Priority to DK92102837.9T priority patent/DK0500098T3/da
Priority to DE69216652T priority patent/DE69216652T2/de
Priority to CA002061608A priority patent/CA2061608A1/en
Priority to JP4072519A priority patent/JPH05255488A/ja
Publication of ITMI910450A1 publication Critical patent/ITMI910450A1/it
Priority to US08/129,790 priority patent/US5359027A/en
Application granted granted Critical
Publication of IT1249045B publication Critical patent/IT1249045B/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
    • C08G63/08—Lactones or lactides

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)

Abstract

Polimeri e copolimeri dell'acido L (+) lattico e D(-)lattico ad alto peso molecolare ed esenti da catalizzatori vengono preparati mediante rigradazione allo stato solido di polimeri a basso peso molecolare.
ITMI910450A 1991-02-21 1991-02-21 Processo per la sintesi allo stato solido di polimeri dell'acido lattico e prodotti cosi ottenuti IT1249045B (it)

Priority Applications (8)

Application Number Priority Date Filing Date Title
ITMI910450A IT1249045B (it) 1991-02-21 1991-02-21 Processo per la sintesi allo stato solido di polimeri dell'acido lattico e prodotti cosi ottenuti
DE69216652T DE69216652T2 (de) 1991-02-21 1992-02-20 Verfahren zur Herstellung von Milchsäurepolymeren im festen Zustand und daraus erhaltene Produkte
ES92102837T ES2097225T3 (es) 1991-02-21 1992-02-20 Procedimiento para la sintesis de polimeros de acido lactico en el estado solido y productos asi obtenidos.
DK92102837.9T DK0500098T3 (da) 1991-02-21 1992-02-20 Fremgangsmåde til syntese af mælkesyrepolymerer i fast tilstand og således opnåede produkter
EP92102837A EP0500098B1 (en) 1991-02-21 1992-02-20 Process for the synthesis of lactic acid polymers in the solid state and products thus obtained
CA002061608A CA2061608A1 (en) 1991-02-21 1992-02-20 Process for the synthesis of lactic acid polymers in the solid state and products thus obtained
JP4072519A JPH05255488A (ja) 1991-02-21 1992-02-21 固体状態における乳酸ポリマーの合成方法および得られた生成物
US08/129,790 US5359027A (en) 1991-02-21 1993-09-30 Process for the synthesis of lactic acid polymers in the solid state and products thus obtained

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMI910450A IT1249045B (it) 1991-02-21 1991-02-21 Processo per la sintesi allo stato solido di polimeri dell'acido lattico e prodotti cosi ottenuti

Publications (3)

Publication Number Publication Date
ITMI910450A0 ITMI910450A0 (it) 1991-02-21
ITMI910450A1 ITMI910450A1 (it) 1992-08-21
IT1249045B true IT1249045B (it) 1995-02-11

Family

ID=11358679

Family Applications (1)

Application Number Title Priority Date Filing Date
ITMI910450A IT1249045B (it) 1991-02-21 1991-02-21 Processo per la sintesi allo stato solido di polimeri dell'acido lattico e prodotti cosi ottenuti

Country Status (8)

Country Link
US (1) US5359027A (it)
EP (1) EP0500098B1 (it)
JP (1) JPH05255488A (it)
CA (1) CA2061608A1 (it)
DE (1) DE69216652T2 (it)
DK (1) DK0500098T3 (it)
ES (1) ES2097225T3 (it)
IT (1) IT1249045B (it)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5767222A (en) * 1988-08-08 1998-06-16 Chronopol, Inc. Degradable polydioxaneone-based materials
EP0664309B1 (en) * 1994-01-21 1999-06-02 Shimadzu Corporation Method for producing polylactic acid
DE69631305T2 (de) * 1995-07-25 2004-11-18 Toyota Jidosha K.K., Toyota Verfahren zur Herstellung von Polymilchsäure
US6140458A (en) * 1998-04-28 2000-10-31 Mitsui Chemicals, Inc. Preparation process of polyester
US6342065B1 (en) * 1999-03-17 2002-01-29 Poly-Med, Inc. High strength fibers of L-lactide copolymers ε-caprolactone and trimethylene carbonate and absorbable medical constructs thereof
WO2000078840A1 (fr) * 1999-06-22 2000-12-28 Mitsui Chemicals, Inc. Procede de production d'acide polyhydroxycarboxylique
JP2001064400A (ja) * 1999-06-22 2001-03-13 Mitsui Chemicals Inc ポリヒドロキシカルボン酸の製造方法
US6469133B2 (en) 1999-12-13 2002-10-22 Board Of Trustees Of Michigan State University Process for the preparation of polymers of dimeric cyclic esters
DK1370153T4 (en) 2001-03-23 2015-05-18 Gumlink As COATED degradable CHEWING GUM WITH IMPROVED STABILITY AND PROCESS FOR THE PREPARATION OF THIS
EP1370154B1 (en) * 2001-03-23 2008-01-09 Gumlink A/S Degradable elastomers for chewing gum base
US6747121B2 (en) 2001-09-05 2004-06-08 Synthes (Usa) Poly(L-lactide-co-glycolide) copolymers, methods for making and using same, and devices containing same
JP2003192773A (ja) 2001-12-26 2003-07-09 Mitsui Chemicals Inc 生体吸収性ポリヒドロキシカルボン酸及びその製造法
WO2004028268A1 (en) 2002-09-24 2004-04-08 Gumlink A/S Chewing gum comprising at least two different biodegradable polymers
DK1542542T3 (da) 2002-09-24 2009-01-19 Gumlink As Bionedbrydeligt tyggegummi omfattende mindst én bionedbrydelig polymer med höj molekylvægt
EP1474995B1 (en) 2003-05-06 2012-11-14 Gumlink A/S A method for producing chewing gum granules, a gum composition extruder and granulating system, and a chewing gum product
EP1474993B1 (en) 2003-05-06 2008-08-20 Gumlink A/S A method for producing chewing gum granules and compressed gum products, and a chewing gum granulating system
WO2007114017A1 (ja) 2006-03-29 2007-10-11 Bio-Energy Corporation 乳酸発酵液からの乳酸成分の分離方法および分離装置
IN2014DN10439A (it) * 2006-06-28 2015-08-21 Gunze Kk
JP5334360B2 (ja) * 2006-06-28 2013-11-06 グンゼ株式会社 金属触媒の含有量が少ない生体内分解吸収性高分子の製法
CN117567426B (zh) * 2024-01-19 2024-04-23 寿光金远东变性淀粉有限公司 一种丙交酯生产方法及装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH542198A (de) * 1967-07-25 1973-11-15 American Cyanamid Co Verfahren zur Herstellung von B-Glycolid und dessen Verwendung
US4273920A (en) * 1979-09-12 1981-06-16 Eli Lilly And Company Polymerization process and product
CA1256638A (en) * 1984-07-06 1989-06-27 Motoaki Tanaka Polymer and its production
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
US4644038A (en) * 1985-09-30 1987-02-17 A. E. Staley Manufacturing Company Unsaturated poly (alpha-hydroxy acid) copolymers
DE3641692A1 (de) * 1986-12-06 1988-06-09 Boehringer Ingelheim Kg Katalysatorfreie resorbierbare homopolymere und copolymere
RU2050162C1 (ru) * 1989-06-22 1995-12-20 Гунзе Лимитед Способ модификации медицинского материала из поли-l-молочной кислоты

Also Published As

Publication number Publication date
ITMI910450A1 (it) 1992-08-21
DK0500098T3 (da) 1997-07-14
ES2097225T3 (es) 1997-04-01
EP0500098A3 (en) 1993-07-21
ITMI910450A0 (it) 1991-02-21
EP0500098A2 (en) 1992-08-26
CA2061608A1 (en) 1992-08-22
EP0500098B1 (en) 1997-01-15
JPH05255488A (ja) 1993-10-05
US5359027A (en) 1994-10-25
DE69216652T2 (de) 1997-06-12
DE69216652D1 (de) 1997-02-27

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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: 19950227