BE831976A - Procede de preparation de l'acide glycolique et de ses polymeres - Google Patents

Procede de preparation de l'acide glycolique et de ses polymeres

Info

Publication number
BE831976A
BE831976A BE158819A BE158819A BE831976A BE 831976 A BE831976 A BE 831976A BE 158819 A BE158819 A BE 158819A BE 158819 A BE158819 A BE 158819A BE 831976 A BE831976 A BE 831976A
Authority
BE
Belgium
Prior art keywords
polymers
glycolic acid
preparing glycolic
preparing
acid
Prior art date
Application number
BE158819A
Other languages
English (en)
French (fr)
Inventor
S Scardigno
L Rivolta
G Caprara
L Cassar
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 filed Critical
Publication of BE831976A publication Critical patent/BE831976A/xx

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
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/10—Preparation of carboxylic acids or their salts, halides or anhydrides by reaction with carbon monoxide
    • C07C51/12—Preparation of carboxylic acids or their salts, halides or anhydrides by reaction with carbon monoxide on an oxygen-containing group in organic compounds, e.g. alcohols

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Polyoxymethylene Polymers And Polymers With Carbon-To-Carbon Bonds (AREA)
  • Polyesters Or Polycarbonates (AREA)
BE158819A 1974-08-01 1975-07-31 Procede de preparation de l'acide glycolique et de ses polymeres BE831976A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT25846/74A IT1017804B (it) 1974-08-01 1974-08-01 Procedimento per la preparazione di acido glicolico e suoi polimeri

Publications (1)

Publication Number Publication Date
BE831976A true BE831976A (fr) 1976-02-02

Family

ID=11217908

Family Applications (1)

Application Number Title Priority Date Filing Date
BE158819A BE831976A (fr) 1974-08-01 1975-07-31 Procede de preparation de l'acide glycolique et de ses polymeres

Country Status (8)

Country Link
US (1) US4052452A (es)
JP (1) JPS5141327A (es)
BE (1) BE831976A (es)
DE (1) DE2534073A1 (es)
ES (1) ES439894A1 (es)
FR (1) FR2280624A1 (es)
IT (1) IT1017804B (es)
NL (1) NL7508960A (es)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4128575A (en) * 1976-11-15 1978-12-05 Hoechst Aktiengesellschaft Process for the manufacture of glycolic acid or its esters
NL7712391A (nl) * 1976-11-15 1978-05-17 Hoechst Ag Werkwijze voor het bereiden van glycolzuur.
JPS5746934A (en) * 1980-09-03 1982-03-17 Agency Of Ind Science & Technol Preparation of glycolic acid and its ester
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
US4824997A (en) * 1988-01-25 1989-04-25 Monsanto Company Method for preparation of alkyl glycolates
WO2003039744A1 (en) * 2001-11-08 2003-05-15 Mitsubishi Chemical Corporation Composite oxide catalyst and method for preparation thereof
US8466328B2 (en) 2010-08-18 2013-06-18 Eastman Chemical Company Method for recovery and recycle of ruthenium homogeneous catalysts
US9227896B2 (en) 2010-08-18 2016-01-05 Eastman Chemical Company Process for the separation and purification of a mixed diol stream
US8829248B2 (en) 2010-08-18 2014-09-09 Eastman Chemical Company Method for recovery and recycle of ruthenium homogeneous catalysts
US8785686B2 (en) 2010-09-23 2014-07-22 Eastman Chemical Company Process for recovering and recycling an acid catalyst
US8709376B2 (en) 2010-09-23 2014-04-29 Eastman Chemical Company Process for recovering and recycling an acid catalyst
US8703999B2 (en) 2012-03-27 2014-04-22 Eastman Chemical Company Hydrocarboxylation of methylene dipropionate in the presence of propionic acid and a heterogeneous catalyst
US8927766B2 (en) 2012-03-27 2015-01-06 Eastman Chemical Company Hydrocarboxylation of methylene dipropionate in the presence of a propionic acid and a homogeneous catalyst
US8829234B2 (en) 2012-03-27 2014-09-09 Eastman Chemical Company Hydrocarboxylation of formaldehyde in the presence of a higher order carboxylic acid and heterogeneous catalyst
US8765999B2 (en) 2012-03-27 2014-07-01 Eastman Chemical Company Hydrocarboxylation of formaldehyde in the presence of a higher order carboxylic acid and a homogeneous catalyst
US9040748B2 (en) 2012-06-08 2015-05-26 Eastman Chemical Company Hydrocarboxylation of aqueous formaldehyde using a dehydrating recycle stream to decrease water concentration
GB201505981D0 (en) 2015-04-08 2015-05-20 Johnson Matthey Davy Technologies Ltd Process
GB201505977D0 (en) 2015-04-08 2015-05-20 Johnson Matthey Davy Technologies Ltd Catalyst system and process
GB201615762D0 (en) * 2016-09-16 2016-11-02 Johnson Matthey Davy Technologies Ltd Process

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2152852A (en) * 1936-12-31 1939-04-04 Du Pont Process for manufacture of glycolic acid
US2443482A (en) * 1946-08-06 1948-06-15 Du Pont Continuous glycolic acid process
US3754028A (en) * 1972-08-21 1973-08-21 Chevron Res Glycolic acid production

Also Published As

Publication number Publication date
DE2534073A1 (de) 1976-02-12
ES439894A1 (es) 1977-03-01
NL7508960A (nl) 1976-02-03
US4052452A (en) 1977-10-04
FR2280624A1 (fr) 1976-02-27
IT1017804B (it) 1977-08-10
FR2280624B1 (es) 1977-12-09
JPS5141327A (en) 1976-04-07

Similar Documents

Publication Publication Date Title
FR2280624A1 (fr) Procede de preparation de l'acide glycolique et de ses polymeres
FR2296639A1 (fr) Procede de preparation de l'acide 7-d-(-)a-amino-a-(p-hydroxyphenylacetamido)-desacetoxycephalosporanique
BE827206A (fr) Procede de preparation de polymeres d'alphaolefines
FR2280626A1 (fr) Procede de production d'acide terephtalique
BE834080A (fr) Procede de preparation d'acide 5-fluoro-2-methyl-1-(p-methyls ulfinylbenzylidene)-indenyl-3-acetique
BE831298A (fr) Nouveaux derives d'acide prostanoique et leur procede de preparation
BE817023A (fr) Procede de preparation d'acide poly-alpha-oxyacryliques et ses sels alcalins
BE826536A (fr) Procede de preparation d'acide methacrylique et de butyrolactone
BE834610A (fr) Procede de preparation de l'acide 3-hydroxy-2-naphioique
BE833184A (fr) Derives d'acide 3-sulfamoylbenzoique a substants basiques et leur procede de preparation
BE829650A (fr) Procede de preparation d'esters alcoxymethylenemaloniques
BE832369A (fr) Procede de defluoration d'acide phosphorique
FR2279712A1 (fr) Procede de preparation d'acide acrylique
BE827541A (fr) Procede de preparation de solutions aqueuses de polymeres d'acrylamide
BE859611A (fr) L'acide n-p-chlorophenoxyisobutyrylthiazolidine-carboxylique son procede de preparation et ses applications therapeutiques
FR2295952A1 (fr) Procede de preparation d'acide 3,6-dichloropicolinique
BE824582A (fr) Procede de preparation de l'acide 1h-tetrazole-1-acetique
BE820005A (fr) Amides d'acide benzimidazole-1-carboxylique et leur procede de preparation
FR2289512A1 (fr) Esters halogenes d'acide phosphorique et procede de leur preparation
FR2285393A1 (fr) Procede de preparation de trichlorures d'alkyl-etains
BE825832A (fr) Procede de preparation de l'acide propiolique
BE832296R (fr) Procede de preparation d'esters dimethylamino-benzoiques et dimethylaminobenzenepolycarboxyliques
BE828187A (fr) Procede de preparation d'esters 2-cyanopropioniques
BE825524R (fr) Procede de preparation de l'acide 3-hydroxy-2-naphtoique
BE835361R (fr) Procede de preparation d'esters d'acide chlorocarbonique