http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S63178134-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5128cfc84a0fb189fceb3cd240c44493 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G75-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G75-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G65-40 |
| filingDate | 1987-03-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_44fe31c2e04bd4170679699c817b9b92 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_14709acfd1687bb3d028f70c803721fd |
| publicationDate | 1988-07-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S63178134-A |
| titleOfInvention | Aromatic polyketone copolymer and its production |
| abstract | PURPOSE: To obtain the title copolymer excellent in flame retardancy, mechani cal strengths, etc., by mixing 4-hydroxythiophenol with 4,4'-dihy droxybenzophenone and polycondensing the mixture with a 4,4'-diha loterephthalophenone. n CONSTITUTION: 30W99mol.% 4-hydroxythiophenol is mixed with 70W1mol.% 4,4-dihydroxybenzophenone. The obtained active hydrogen component is polycondensed with an equimolar amount of a 4,4-dihaloterephthalophenone at 200W400°C in the presence of an alkali metal (bi)carbonate by using an aromatic sulfone or ketone as a solvent. In this way, the title copolymer comprising structural units A of formula I, structural units B of formula II and structural units C of formula III, having a unit A to unit C molar ratio of 30:70W99:1, having a linear polymer structure in which units A are alternating bonded with either of units B and C, and having an intrinsic viscosity ≥0.4 can be obtained. n COPYRIGHT: (C)1988,JPO&Japio |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5782179-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5927192-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5740731-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6076461-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5799577-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5816149-A |
| priorityDate | 1986-09-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 34.