http://rdf.ncbi.nlm.nih.gov/pubchem/patent/ES-440558-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c7ad58d3c0b071069a8ee0cb8c8ba2e8 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-6826 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-672 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D01F6-84 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-682 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-672 |
| filingDate | 1975-08-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1977-03-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | ES-440558-A1 |
| titleOfInvention | PROCEDURE FOR OBTAINING LINEAR TERAPHTHALIC ACID COPOLIESTERS. |
| abstract | Process for obtaining linear, high-molecular-weight, difficult-to-burn terephthalic acid copolyesters by polycondensation of dicarboxylic acid derivatives with diols, characterized in that dicarboxylic acid derivatives of general formula are polycondensed ** (See formula) ** where X is a phenylene moiety, preferably a P-phenylene moiety and R3 is hydrogen or a straight or branched chain alkyl moiety with 1 to 10 carbon atoms, with a mixture of a diol of general formula HO-R4-OH where R4 signifies a straight or branched chain alkylene moiety with 2 to 20 carbon atoms, a cycloalkylene moiety or a moiety of the general formula ** (See formula) ** where R1 means a straight or branched chain alkylene moiety with 1 to 10 carbon atoms and a bromine-containing bis- (hydroxy-alkoxy) -benzene derivative in the aromatic nucleus, of general formula ** (See formula) ** where R5 means a group of general formula ** (See formula) ** m represents zero or a number from 1 to 9, n is a number from 1 to 4, R6 stands for hydrogen or a methyl group, and R7 stands for hydrogen or an aliphatic acyl radical with 1 to 5 carbon atoms, in such quantitative proportions to each other., melted at temperatures below 350ºC, at pressures between normal pressure and 0.001 Torr, using known catalysts, so that the content of the condensed brominated bis- (hydroxy-alkoxy) -benzene derivative polyester is found in the zone between 1 and 8 mol%, based on the amount of condensed dicarboxylic acids. (Machine-translation by Google Translate, not legally binding) |
| priorityDate | 1974-08-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 26.