DK0443542T3 - Process for preparing polyesters based on hydroxycarboxylic acids - Google Patents

Process for preparing polyesters based on hydroxycarboxylic acids

Info

Publication number
DK0443542T3
DK0443542T3 DK91102413.1T DK91102413T DK0443542T3 DK 0443542 T3 DK0443542 T3 DK 0443542T3 DK 91102413 T DK91102413 T DK 91102413T DK 0443542 T3 DK0443542 T3 DK 0443542T3
Authority
DK
Denmark
Prior art keywords
opt
pref
substd
hal
oligomers
Prior art date
Application number
DK91102413.1T
Other languages
Danish (da)
Inventor
Berthold Dr Buchholz
Original Assignee
Boehringer Ingelheim Int
Boehringer Ingelheim Kg
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 Boehringer Ingelheim Int, Boehringer Ingelheim Kg filed Critical Boehringer Ingelheim Int
Application granted granted Critical
Publication of DK0443542T3 publication Critical patent/DK0443542T3/en

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
    • C08G63/78—Preparation processes
    • C08G63/82—Preparation processes characterised by the catalyst used
    • C08G63/87—Non-metals or inter-compounds thereof
    • 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)
  • 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)

Abstract

Polyesters (I) based on hydroxycarboxylic produced by converting H-(OCHR-(CR'R'')x-CO)n-OH(II) to H-(OCHR-(CR'R'')x-CO)m-OH (I). In the formulae, R, R', R'' = alkyl and/or H; m, n = whole nos, with m greater than n; and x = 0 or a whole no. The novelty is that the reaction is carried out in the presence of a condensation catalyst (III). Specifically (III) is a cpd of formula R1-N=C=N-R2 (with R1, R2 = opt substd alkyl, cycloalkyl or aryl), R3-C0-R4 (with R3, R4 = opt Hal-substd alkoxy, a 5-, 6- or 7-membered ring (opt with 1 or more C atoms replaced by hetero atom(s) and opt unsatd and/or substd), or Hal (pref C1), R5-S02-X (with 5 = opt substd alkyl or aryl; X = Hal, pref Cl), R6-0-C0-0-R7 (with R6, R7 = opt substd heteroaryl or aryl, or C6H2Y1Y2Y3-Hal (with Y1, Y2, Y3 = H or nitro); pref (III) is phosgene, diphosgene or triphosgene, carbonyldi-imidazole (CDI) or dicyclohexylcarbodi-imide (DCC); reaction is carried out in the presence of an acylation catalyst, pref a 4-dialkylaminopyridine, esp pref 4-dimethylamino-, 4-piperidino- or 4-pyrrolidino-pyridine; (II) are alpha- and/or beta-hydroxycarboxylic acids or oligomers thereof, esp glycols acid, D- and/or L-lactic acid and/or oligomers thereof, or a mixt of these acids and oligomers.
DK91102413.1T 1990-02-21 1991-02-20 Process for preparing polyesters based on hydroxycarboxylic acids DK0443542T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4005415A DE4005415C2 (en) 1990-02-21 1990-02-21 Process for the preparation of polyesters based on hydroxycarboxylic acids

Publications (1)

Publication Number Publication Date
DK0443542T3 true DK0443542T3 (en) 1997-06-23

Family

ID=6400637

Family Applications (1)

Application Number Title Priority Date Filing Date
DK91102413.1T DK0443542T3 (en) 1990-02-21 1991-02-20 Process for preparing polyesters based on hydroxycarboxylic acids

Country Status (7)

Country Link
EP (2) EP0729992A3 (en)
JP (1) JP3035716B2 (en)
AT (1) ATE154047T1 (en)
DE (2) DE4005415C2 (en)
DK (1) DK0443542T3 (en)
ES (1) ES2104620T3 (en)
GR (1) GR3024284T3 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5444143A (en) * 1992-12-25 1995-08-22 Mitsui Toatsu Chemicals, Inc. Preparation process of polyhydroxycarboxylic acid
US5543202A (en) * 1994-03-14 1996-08-06 Kimberly-Clark Corporation Process for producing a crimp-bonded fibrous cellulosic laminate
US5770683A (en) * 1994-11-02 1998-06-23 Mitsui Toatsu Chemicals, Inc. Preparation process of polyhydroxycarboxylic acid
JPH0959218A (en) * 1995-08-25 1997-03-04 Shimadzu Corp L-lactic acid oligomer derivative
US5719256A (en) * 1995-10-19 1998-02-17 Mitsu Toatsu Chemicals, Inc. Process for preparing polycondensation polymer compound
WO1997026869A1 (en) * 1996-01-24 1997-07-31 United States Government Represented By The Secretary Of The Army Novel 'burst-free' sustained release poly-(lactide/glycolide) microspheres
WO2003095519A1 (en) * 2002-05-08 2003-11-20 Japan Science And Technology Corporation NOVEL POLYESTER HAVING π-CONJUGATED GROUP IN SIDE CHAIN AND CHARGE TRANSPORTING MATERIAL USING THE SAME
EP1382628A1 (en) * 2002-07-16 2004-01-21 Polyganics B.V. Biodegradable phase separated segmented/block co-polyesters
JP2004359582A (en) * 2003-06-03 2004-12-24 Tendou Seiyaku Kk Method for producing diploid of cyclic lactic acid oligomer
JP4621885B2 (en) * 2004-05-07 2011-01-26 独立行政法人物質・材料研究機構 Process for producing polymalic acid copolymer
JP2008291268A (en) * 2008-07-07 2008-12-04 Toray Ind Inc Process for producing polylactic acid block copolymer
KR101027163B1 (en) 2009-12-18 2011-04-05 주식회사 엘지화학 Polylactide resin, preparation method thereof, and polylactide resin composition comprising the same

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE344034C (en) *
DE1495626B1 (en) * 1960-03-30 1971-06-09 Bayer Ag METHOD OF MANUFACTURING POLYESTERS
US4273920A (en) * 1979-09-12 1981-06-16 Eli Lilly And Company Polymerization process and product
US4438253A (en) * 1982-11-12 1984-03-20 American Cyanamid Company Poly(glycolic acid)/poly(alkylene glycol) block copolymers and method of manufacturing the same
JPS60229919A (en) * 1984-04-27 1985-11-15 Mitsubishi Chem Ind Ltd Process for producing polyester, polyesteramide and polyamide
CA1256638A (en) * 1984-07-06 1989-06-27 Motoaki Tanaka Polymer and its production
US4622413A (en) * 1984-08-31 1986-11-11 Ppg Industries, Inc. Method for preparing amino acid ester hydrohalides
JPH01167329A (en) * 1987-12-23 1989-07-03 Idemitsu Kosan Co Ltd Production of polyester, polyester amide or polyamide
US4877871A (en) * 1988-06-14 1989-10-31 Nabisco Brands, Inc. Synthesis of sucrose polyester

Also Published As

Publication number Publication date
EP0729992A3 (en) 1997-01-15
DE59108729D1 (en) 1997-07-10
DE4005415A1 (en) 1991-08-22
EP0443542B1 (en) 1997-06-04
EP0729992A2 (en) 1996-09-04
GR3024284T3 (en) 1997-10-31
ES2104620T3 (en) 1997-10-16
EP0443542A2 (en) 1991-08-28
JP3035716B2 (en) 2000-04-24
JPH04216822A (en) 1992-08-06
EP0443542A3 (en) 1992-10-07
ATE154047T1 (en) 1997-06-15
DE4005415C2 (en) 1996-04-11

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