ES329145A1 - A process for the preparation of polyesters from thereftal acid and glycols, more particularly ethylenglycol. (Machine-translation by Google Translate, not legally binding) - Google Patents

A process for the preparation of polyesters from thereftal acid and glycols, more particularly ethylenglycol. (Machine-translation by Google Translate, not legally binding)

Info

Publication number
ES329145A1
ES329145A1 ES0329145A ES329145A ES329145A1 ES 329145 A1 ES329145 A1 ES 329145A1 ES 0329145 A ES0329145 A ES 0329145A ES 329145 A ES329145 A ES 329145A ES 329145 A1 ES329145 A1 ES 329145A1
Authority
ES
Spain
Prior art keywords
polyesters
glycols
translation
preparation
machine
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
ES0329145A
Other languages
Spanish (es)
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.)
Akzo NV
Original Assignee
Algemene Kunstzijde Unie NV
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 Algemene Kunstzijde Unie NV filed Critical Algemene Kunstzijde Unie NV
Publication of ES329145A1 publication Critical patent/ES329145A1/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
    • C08G63/86—Germanium, antimony, or compounds thereof
    • C08G63/866—Antimony or compounds thereof

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

A process for the preparation of polyesters from terephthalic acid and glycols, more particularly ethylene glycol, in which process is formed from terephthalic acid or a low alkyl ester thereof, and glycol, a low molecular weight glycol terephthalate, which it is then subjected to polycondensation in the presence of metallic antimony as a polycondensation catalyst, characterized in that metallic antimony with a particle size comprised between 3 to 100 μm is used; (Machine-translation by Google Translate, not legally binding)
ES0329145A 1965-07-16 1966-07-15 A process for the preparation of polyesters from thereftal acid and glycols, more particularly ethylenglycol. (Machine-translation by Google Translate, not legally binding) Expired ES329145A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6509208A NL6509208A (en) 1965-07-16 1965-07-16

Publications (1)

Publication Number Publication Date
ES329145A1 true ES329145A1 (en) 1967-05-01

Family

ID=19793652

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0329145A Expired ES329145A1 (en) 1965-07-16 1966-07-15 A process for the preparation of polyesters from thereftal acid and glycols, more particularly ethylenglycol. (Machine-translation by Google Translate, not legally binding)

Country Status (2)

Country Link
ES (1) ES329145A1 (en)
NL (1) NL6509208A (en)

Also Published As

Publication number Publication date
NL6509208A (en) 1965-10-25

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