http://rdf.ncbi.nlm.nih.gov/pubchem/patent/ES-383322-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_315ae544538aaeac6d1f4eed6754e4bb |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C309-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-6884 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L67-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-688 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-68 |
| filingDate | 1970-09-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1973-01-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | ES-383322-A1 |
| titleOfInvention | A PROCEDURE OF PREPARING A COPOLIESTER RESIN. |
| abstract | A method of preparing a copolyester resin by directly esterifying an aromatic dicarboxylic acid, for example, terephthalic acid, with an aliphatic glycol, for example, ethylene glycol, or by transesterifying a lower dialkyl ester of said acid with said glycol, characterized by by the fact that a small amount of a substituted aromatic acid or an ester thereof represented by the formula is polycondensed with them: **(See formula)** where R1 and R2 are both hydrogen or lower alcohol radicals containing from 1 to 4 carbon atoms, n is a positive integer from 1 to 6, preferably 3, x is 0 or 1, and M is a metal, with the provided that when there is a carboxyl or carboxylate group at position 2, there is no second carboxyl or carboxylate group at position 6. (Machine-translation by Google Translate, not legally binding) |
| priorityDate | 1969-09-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 21.