GB784791A - Improvements in the manufacture of terephthalic acid esters - Google Patents

Improvements in the manufacture of terephthalic acid esters

Info

Publication number
GB784791A
GB784791A GB35025/54A GB3502554A GB784791A GB 784791 A GB784791 A GB 784791A GB 35025/54 A GB35025/54 A GB 35025/54A GB 3502554 A GB3502554 A GB 3502554A GB 784791 A GB784791 A GB 784791A
Authority
GB
United Kingdom
Prior art keywords
terephthalate
bis
delta
hydroxy
butyl
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
GB35025/54A
Inventor
William Robert Burton
Norman Standring
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB35025/54A priority Critical patent/GB784791A/en
Publication of GB784791A publication Critical patent/GB784791A/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
    • C08G63/82—Preparation processes characterised by the catalyst used
    • C08G63/85—Germanium, tin, lead, arsenic, antimony, bismuth, titanium, zirconium, hafnium, vanadium, niobium, tantalum, or 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
    • C08G63/12—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
    • C08G63/18—Dicarboxylic acids and dihydroxy compounds the acids or hydroxy compounds containing carbocyclic rings
    • C08G63/181—Acids containing aromatic rings
    • C08G63/183—Terephthalic 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
    • 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
    • C08G63/83—Alkali metals, alkaline earth metals, beryllium, magnesium, copper, silver, gold, zinc, cadmium, mercury, manganese, or 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
    • C08G63/78—Preparation processes
    • C08G63/82—Preparation processes characterised by the catalyst used
    • C08G63/85—Germanium, tin, lead, arsenic, antimony, bismuth, titanium, zirconium, hafnium, vanadium, niobium, tantalum, or compounds thereof
    • C08G63/86—Germanium, antimony, or 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
    • C08G63/78—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
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
    • C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
    • D01F6/62—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyesters

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

In the Provisional Specifications, polytetramethylene terephthalate is made by poly-condensing bis-(delta-hydroxy-n-butyl) terephthalate by heating under reduced pressure in the presence of antimony oxide and titanium oxide. Zinc, cadmium, calcium and lead acetates which were used as catalysts during the preparation of the bis-hydroxybutyl ester are also present. Examples are given.ALSO:Bis-(delta-hydroxy n-butyl) terephthalate is made by an ester-interchange reaction between 1 : 4-butanediol and a di-alkyl terephthalate, a zinc compound or a mixture of zinc compounds which is soluble in the reaction mixture being used as catalyst. The use of calcium, cadmium and lead compounds as catalysts is also mentioned. In examples: (1) and (2), dimethyl terephthalate, or (5) diethyl terephthalate, is heated together with 1 : 4-butanediol and zinc acetate, methanol or ethanol being eliminated, to give bis-(delta-hydroxy n-butyl) terephthalate; Examples (3) and (4) illustrate the use as catalyst of cadmium and calcium acetates respectively. Bis - (delta - hydroxy n - butyl) terephthalate is used to prepare polytetramethylene terephthalate (see Group IV (a)). In the Provisional Specifications, Example (5) illustrates the use of lead acetate as catalyst.
GB35025/54A 1954-12-03 1954-12-03 Improvements in the manufacture of terephthalic acid esters Expired GB784791A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB35025/54A GB784791A (en) 1954-12-03 1954-12-03 Improvements in the manufacture of terephthalic acid esters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB35025/54A GB784791A (en) 1954-12-03 1954-12-03 Improvements in the manufacture of terephthalic acid esters

Publications (1)

Publication Number Publication Date
GB784791A true GB784791A (en) 1957-10-16

Family

ID=10372905

Family Applications (1)

Application Number Title Priority Date Filing Date
GB35025/54A Expired GB784791A (en) 1954-12-03 1954-12-03 Improvements in the manufacture of terephthalic acid esters

Country Status (1)

Country Link
GB (1) GB784791A (en)

Similar Documents

Publication Publication Date Title
GB777628A (en) Manufacture of glycol esters of terephthalic acid and polyesters thereof
ES480651A1 (en) Process for the preparation of ethyl acetate.
GB1001787A (en) A process for the preparation of polyethylene terephthalate
GB1384471A (en) Process for the manufacture of fatty acid ethanolamides
ES8106478A1 (en) The use of perfluorosulfonic acid resins as catalysts for preparing esters.
GB784791A (en) Improvements in the manufacture of terephthalic acid esters
GB775030A (en) Process for the manufacture of polyesters of terephthalic acid
GB765597A (en) Polytetramethylene terephthalate
ES425088A1 (en) Acidic oleo-acrylic resins and processes for preparing same
GB776282A (en) Esters of terephthalic acid
GB894639A (en) Improvements relating to the preparation of esters
GB1277264A (en) 07-acetylgonanes and derivatives therefor
GB1074491A (en) Novel processes for preparing steroid compounds, the compounds when thus prepared, novel steroid compounds thereby prepared, and pharmaceutical compositions containing the novel compounds
GB1374342A (en) Production of carboxylic acid glycidyl esters
GB963966A (en) Process for the production of mixed polyesters
GB805534A (en) Improvements in or relating to catalytic condensation of diglycolesters of dicarboxylic acids
ES476885A1 (en) Process for the preparation of ethylesters.
GB1242276A (en) Catalytic process for making polyesters
GB1324666A (en) Preparation of aryl esters
GB1466591A (en) Production of terephthalate polyesters
GB869964A (en) Manufacture of copolyesters
GB788880A (en) Manufacture of highly polymeric polymethylene terephthalates
GB1122943A (en) Process for the manufacture of linear polyesters
GB1374360A (en) Transesterification of quinoxaline-2-carboxylic acid esters
ES433565A3 (en) Improved procedure for the preparation of esters of tereftal acid. (Machine-translation by Google Translate, not legally binding)