| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8fdf4bd252086a802c43c7d912459596
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6bfdf49224a405be1f7b653c56ebad94 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F228-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G75-0254 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G75-0254
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G75-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G75-06 |
| filingDate |
1988-12-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_99e749c9c7e88a2fef8adb29f0ba7ddf
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4ea1ad1510e7c5691b4897e57feda5ac
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_afb2a86fbcac515141d026a2789caff3 |
| publicationDate |
1989-07-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-0323723-A2 |
| titleOfInvention |
Process for producing poly (para-phenylene-sulfide) |
| abstract |
In a process for producing poly (p-phenylenesulfide) from an alkali metal sulfide and a p-dihalobenzene, a product polymer of an advantageously increased molecular weight is obtained by: providing a mixture comprising an alkali metal sulfide, a polar aprotic solvent, a sodium salt of an aliphatic carboxylic acid represented by the general formula: RCOONa (where R is an aliphtic hydrocarbon group having 1 - 20 carbon atoms), the content of water present in said mixture apart from any water of hydration or crystallization which may be contained in said sulfide and sodium salt being in the range of 5 to 20 moles per mole of said sulfide; removing at least part of the water from said mixture, preferably so as to at least partially dehydrate the said sulphide component; and then contacting the resulting dehydrated mixture with a p-dihalobenzene. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0374719-A2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0374719-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8680230-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5241043-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5239051-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8609790-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/BE-1006187-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5367049-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0589510-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0435209-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0435209-A2 |
| priorityDate |
1987-12-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |