Method for the continuous production of...

Details Method for the continuous production of... Method for the continuous production of...

C - Chemistry, Metallurgy

08

G

C08G 63/78 (2006.01) C08G 63/183 (2006.01)

Patent

CA 2378649

The invention relates to a method for the continuous production of polybutyleneterephthalate from terephthalic acid and 1,4-butanediol, comprising the following: d) the direct esterification of terephthalic acid with 1,4-butanediol in a reactor series consisting of at least two reactors; e) the precondensation of the product of esterification obtained in step a); f) the polycondensation of the precondensate obtained in step b). The reactor series in step a) is operated with a falling reaction pressure and a non- rising temperature.

L'invention concerne un procédé de production continue de polybutylèntéréphthalat à partir d'acide téréphathalique et de 1,4-butandiol. Ce procédé consiste à effectuer: d) l'estérification directe de l'acide téréphthalique avec 1,4-butandiol dans un réacteur en cascade constitué d'au moins deux réacteurs, e) la précondensation du produit d'estérification obtenu en a) ; f) la polycondensation du précondensat obtenu en b). A l'étape a), le réacteur en cascade fonctionne avec une pression décroissante et une température non croissante.

Affiliated with

Also associated with

Rating

Method for the continuous production of... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for the continuous production of..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for the continuous production of... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1711496