ES373915A1 - Continuous procedure and apparatus for the obtaining of low molecular weight polyesters. (Machine-translation by Google Translate, not legally binding) - Google Patents

Continuous procedure and apparatus for the obtaining of low molecular weight polyesters. (Machine-translation by Google Translate, not legally binding)

Info

Publication number
ES373915A1
ES373915A1 ES373915A ES373915A ES373915A1 ES 373915 A1 ES373915 A1 ES 373915A1 ES 373915 A ES373915 A ES 373915A ES 373915 A ES373915 A ES 373915A ES 373915 A1 ES373915 A1 ES 373915A1
Authority
ES
Spain
Prior art keywords
translation
mass
molecular weight
machine
low molecular
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
ES373915A
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.)
Rhodiaceta SA
Original Assignee
Rhodiaceta SA
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 Rhodiaceta SA filed Critical Rhodiaceta SA
Priority to ES373915A priority Critical patent/ES373915A1/en
Publication of ES373915A1 publication Critical patent/ES373915A1/en
Expired legal-status Critical Current

Links

Landscapes

  • Processes Of Treating Macromolecular Substances (AREA)
  • Polyesters Or Polycarbonates (AREA)

Abstract

Continuous process for obtaining low molecular weight polyesters, from a liquid mass consisting essentially of bis- β -hydroxyethyl terephthalate and/or its oligomers, which leads to homogeneous products, and which present a very low degree of compounds with ether function, characterized in that the mass is passed through, in a succession of superimposed zones, maintained at the same pressure lower than 15 torrs, and at a temperature higher than 260º c, and in each of which the mass circulates in the form of one or more streams which are alternately placed in contact with a heated wall and the atmosphere under reduced pressure, the mass passing from one area to the other by gravity in the form of a film, the gaseous products released from the bottom up traveling without loss of load. (Machine-translation by Google Translate, not legally binding)
ES373915A 1969-11-26 1969-11-26 Continuous procedure and apparatus for the obtaining of low molecular weight polyesters. (Machine-translation by Google Translate, not legally binding) Expired ES373915A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES373915A ES373915A1 (en) 1969-11-26 1969-11-26 Continuous procedure and apparatus for the obtaining of low molecular weight polyesters. (Machine-translation by Google Translate, not legally binding)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES373915A ES373915A1 (en) 1969-11-26 1969-11-26 Continuous procedure and apparatus for the obtaining of low molecular weight polyesters. (Machine-translation by Google Translate, not legally binding)

Publications (1)

Publication Number Publication Date
ES373915A1 true ES373915A1 (en) 1972-02-16

Family

ID=8454402

Family Applications (1)

Application Number Title Priority Date Filing Date
ES373915A Expired ES373915A1 (en) 1969-11-26 1969-11-26 Continuous procedure and apparatus for the obtaining of low molecular weight polyesters. (Machine-translation by Google Translate, not legally binding)

Country Status (1)

Country Link
ES (1) ES373915A1 (en)

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