GB1123002A - Process for preparing polyesters - Google Patents

Process for preparing polyesters

Info

Publication number
GB1123002A
GB1123002A GB3336865A GB3336865A GB1123002A GB 1123002 A GB1123002 A GB 1123002A GB 3336865 A GB3336865 A GB 3336865A GB 3336865 A GB3336865 A GB 3336865A GB 1123002 A GB1123002 A GB 1123002A
Authority
GB
United Kingdom
Prior art keywords
alkyl
dicarboxylic acid
formic acid
mixture
cooh
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
GB3336865A
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.)
Societe dElectro Chimie dElectro Metallurgie et des Acieries Electriques Dugine SA SECEMAU
Original Assignee
Societe dElectro Chimie dElectro Metallurgie et des Acieries Electriques Dugine SA SECEMAU
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 Societe dElectro Chimie dElectro Metallurgie et des Acieries Electriques Dugine SA SECEMAU filed Critical Societe dElectro Chimie dElectro Metallurgie et des Acieries Electriques Dugine SA SECEMAU
Publication of GB1123002A publication Critical patent/GB1123002A/en
Expired legal-status Critical Current

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
    • C08G63/81—Preparation processes using solvents
    • 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
    • C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
    • C08G63/16—Dicarboxylic acids and dihydroxy compounds
    • 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
    • C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
    • C08G63/16—Dicarboxylic acids and dihydroxy compounds
    • C08G63/20—Polyesters having been prepared in the presence of compounds having one reactive group or more than two reactive groups

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Polyesters Or Polycarbonates (AREA)

Abstract

Polyesters are prepared from olefins by first reacting the olefin with a mixture of H2O2 and H-COOH to give mono- and di-formates of the corresponding glycol then adding to the reaction mixture a dicarboxylic acid (or acids) or an anhydride or alkyl ester thereof, and heating the whole to remove water and formic acid or alkyl formate and form the polyester. Suitable olefins are ethylene, propylene and butylene. Suitable dicarboxylic acid components are adipic, alkyladipic, pimelic, suberic, sebacic, dodecanedioic, fumaric, isophthalic and terephthalic acids or their alkyl (e.g. methyl, ethyl or butyl) esters or succinic, maleic, glutaric, phthalic or tetrahydrophthalic anhydrides or the corresponding alkyl esters. The dicarboxylic acid component may be added before or after the removal of the excess formic acid:-2-10 mols of formic acid may be used per mol of H2O2 in stage one. In stage two after removal of the excess H-COOH the mixture may be heated alone at 150-250 DEG C. or in an inert solvent, e.g. cyclohexane, benzene, toluene or xylene at 80-140 DEG C. 0.1-2% of an esterification catalyst is usually added, e.g. HCl, H2SO4, H3PO4, p-toluenesulphonic acid, or (for transesterification) MeONa, EtONa, t-BuONa, (i-PrO)3Al and (BuO)4Ti. In examples polypropylene adipate having M.W. 820-2100 and polyethylene adipate and terephthalate are prepared.
GB3336865A 1964-08-13 1965-08-04 Process for preparing polyesters Expired GB1123002A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR985090A FR1415633A (en) 1964-08-13 1964-08-13 Process for the preparation of polyesters

Publications (1)

Publication Number Publication Date
GB1123002A true GB1123002A (en) 1968-08-07

Family

ID=8836620

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3336865A Expired GB1123002A (en) 1964-08-13 1965-08-04 Process for preparing polyesters

Country Status (3)

Country Link
DE (1) DE1645290A1 (en)
FR (1) FR1415633A (en)
GB (1) GB1123002A (en)

Also Published As

Publication number Publication date
FR1415633A (en) 1965-10-29
DE1645290A1 (en) 1970-09-17

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