http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S59164324-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1374dd16777534b65ad4422333245af8 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-78 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-91 |
| filingDate | 1983-03-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_dd1d611d9b5d14bb37163413127547e0 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0aa8c7cf08f4f3625221f6f68a1d5804 |
| publicationDate | 1984-09-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S59164324-A |
| titleOfInvention | Production of high-polymerization degree aromatic polyester |
| abstract | PURPOSE: To produce the titled coloration-free, homogenous polymer of a limiting viscosity ≥1.20, by adding an iminoether compound to a specified aromatic polyester prepolymer and reacting the mixture under a condition under which the aromatic polyester prepolymer is in a molten state. n CONSTITUTION: A high-polymerization degree aromatic polyester of a limiting viscosity ≥1.2 is produced by adding at least 0.05wt% iminoether compound of formula III (wherein X is a bivalent aromatic group selected so that the ring structure of formula IV may be five- or six-membered, D is a bivalent organic group, and n is 0 or 1) to an aromatic polyester prepolymer with the limiting viscosity of 0.6 or above (measured at 35°C in a (4:6) tetrachloroethane/phenol mixed solvent), in which the proportion of the carboxyl group-blocked terminals is 45% or above based on the total molecular terminals and at least one equivalent/10 6 g of the terminal-blocking carboxyl groups is the group of formula I , wherein R is a (substituted) alkylene of formula II (wherein n is 10W18), and reacting the mixture under a condition under which the aromatic polyester prepolymer is in a molten state. n COPYRIGHT: (C)1984,JPO&Japio |
| priorityDate | 1983-03-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 26.