http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-984524-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c72d118f5664072de841f9c5c34b9d99 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-40 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01B3-423 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01B3-42 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-64 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-6826 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-19 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-19 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09D5-25 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-40 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-682 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-64 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01B3-42 |
| filingDate | 1961-05-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1965-02-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-984524-A |
| titleOfInvention | Process for producing synthetic polyesters |
| abstract | Linear polyesters are made by heating a solution of (a) a di-acid halide of a dicarboxylic acid with (b) a glycol or a dihydric phenol, at a temperature up to the reflux temperature of the solution until the evolution of hydrogen halide substantially ceases, the solvent used being benzophenone, m-terphenyl, a chlorinated or brominated biphenyl, or a chlorinated or brominated diphenyl oxide. Many dihydric compounds and dicarboxylic acids are specified. The reaction mixture may also include, as a chain-terminating agent (c) a monohydric phenol (e.g. phenol, a hydrocarbon or hydrocarbonoxy substituted phenol or a di- or trihydric phenol in which all but one hydroxyl group has been esterified by a monocarboxylic acid) or (d) an acid-halide of a monocarboxylic acid, especially an aromatic monocarboxylic acid. At the end of the polyesterification reaction, the polyester may be filtered from the cooled solution possibly after the addition of a non-solvent for the polymer, followed by washing the polyester with the non-solvent. Alternatively, the solvent may be removed by the evaporation, distillation or spray-drying. Examples describe the preparation of polyesters by reacting (1)-(1), (3), (5), (10) and (13) hydroquinone and isophthaloyl chloride; (2)-(11), (12) and (14) hydroquinone, isophthaloyl chloride and terephthaloyl chloride; (4) hydroquinone, 4 : 41-dihydroxybiphenyl and isophthaloyl chloride; (6) hydroquinone and 5-chloroisophthaloyl chloride; (7) hydroquinone, resorcinol, isophthaloyl chloride and terephthaloyl chloride; (8) hydroquinone, o,o1-dihydroxybiphenyl, isophthaloyl chloride and terephthaloyl chloride; (9) hydroquinone, 3:31-biphenyldicarbonyl chloride and isophthaloyl chloride; (15) chlorohydroquinone and isophthaloyl chloride; (16) hydroquinone, bisphenol A and isophthaloyl chloride; (17) tolyhydroquinone and isophthaloyl chloride; (18) phenylhydroquinone, hydroquinone and isophthaloyl chloride; (19) hydroquinone, bromohydroquinone and isophthaloyl chloride; (20) hydroquinone, 2 : 5-ditertiarybutyl hydroquinone and isophthaloyl chloride; (21) 4 : 41-dihydroxybenzophenone hydroquinone isophthaloyl chloride; (22) and (23) resorcinol and terephthaloyl chloride; (24) catechol, hydroquinone and isophthaloyl chloride; (25) 2,2-bis-(4-hydroxycyclohexyl) propane and isophthaloyl chloride; (26) bis-(4-hydroxycyclohexyl) dimethylmethane and sebacyl chloride. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4245082-A |
| priorityDate | 1960-06-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 64.