| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b09f81e7512064f3b843b3e86a339b2e |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-84
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-61
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-4012
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-4075 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-78
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G65-38
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C49-83 |
| filingDate |
2008-09-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_000cd5e21af6a88cd21ae945f7dbdfbf
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_319c274c60f50172c5f10ca09d187bf1
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a7fe113e41d70b84b34b988d59f31060
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_501a39795415d8380be343db4871593d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b7d387832b916dd0f0e528816ea96a41
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e9af312843cc1c63d0967dc094de1e2a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_08eb278d54f1e9084de19c920222ef1c
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ba9efb295f34f487979eed8bcf97ea7b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b7c57ef4bab55d5b1871cfb1a771d9eb
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9bcaf50e48d6ee6b99518ba8818436a0 |
| publicationDate |
2009-09-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CN-101544555-A |
| titleOfInvention |
Polyether ketone, its monomer and its phenolate |
| abstract |
A process for the preparation of an alkali metal salt of 4-chloro-4'-hydroxy benzophenone including the steps of (a) preparing purified 4-chloro-4'-hydroxy benzophenone by a process including distilling under reduced pressure a liquid containing 4-chloro-4'-hydroxy benzophenone and a solvent selected from diphenyl sulphone, diphenylene sulphone, benzophenone and dichlorobenzophenone, and then (b) preparing the alkali metal salt of thus purified 4-chloro-4'-hydroxy benzophenone by the reaction of the purified 4-chloro-4'-hydroxy benzophenone with a stoichiometric excess of at least one alkali metal base. There is also described a polymerization process using the alkali metal salt to yield PEK with high inherent viscosity and improved mechanical and thermal properties. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107936243-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103992472-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-115135691-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103992472-A |
| priorityDate |
2008-03-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |