Method for the continuous production of polybutylene...

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

C - Chemistry, Metallurgy

08

G

C08G 63/78 (2006.01) C08G 63/85 (2006.01)

Patent

CA 2377201

The invention relates to a method for the continuous production of polybutylene terephthalate from terephthal acid and 1,4-butane diole, comprising the following stages: a) direct esterification of terephthal acid with 1,4-butane diole in a reactor cascade of at least two reactors b) pre- condensation of the esterification product obtained in stage a), c) polycondensation of the pre-condensate obtained in stage b), whereby the temperature of the reactor cascade in stage a) is progressively decreased during its operation.

L'invention concerne un procédé de production en continu de téréphtalate de polybutylène à partir d'acide téréphtalique et de 1,4-butanediol, qui comprend les étapes suivantes: a) estérification directe d'acide téréphtalique avec du 1,4-butanediol, dans une cascade de réacteurs comprenant au moins deux réacteurs; b) précondensation du produit d'estérification obtenu à l'étape a); et c) polycondensation du précondensat obtenu à l'étape b). La cascade de réacteurs utilisée dans l'étape a) est exploitée avec une température décroissante.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-2012312