Process for the production of fully aromatic, thermotropic polye

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

528199, C08G 6338

Patent

active

048899119

ABSTRACT:
Thermotropic, fully aromatic polyesters and polyester carbonates are produced by esterification of optionally substituted p-hydroxybenzoic acids and aromatic dicarboxylic acids with diaryl carbonate at temperatures in the range from 100.degree. to 220.degree. C. and subsequent transesterification of the aryl ester obtained with diphenols and, optinally, more diaryl carbonate, accompanied by polycondensation, at temperatures in the range from 250.degree. to 330.degree. C., the esterification, the transesterification and the polycondensation being carried out in the presence of heterocyclic compounds containing 1 to 3 nitrogen atoms.

REFERENCES:
patent: 4297455 (1981-10-01), Lindner et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Process for the production of fully aromatic, thermotropic polye does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

     

Profile ID: LFUS-PAI-O-1577803

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.