| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_77c3c5bf582e4f4ffb2f514d7e32186f |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K5-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2325-04 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J9-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K5-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K5-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2-44
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F112-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K3-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J9-0019
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F12-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J9-04 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F12-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K5-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-18 |
| filingDate |
2010-12-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2014-07-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_006241f01d91afc385644f6a5b30320a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5284905b8675f28b375571e8eb3a4969 |
| publicationDate |
2014-07-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CN-102639569-B |
| titleOfInvention |
Process for the polymerization of styrene |
| abstract |
A process for the suspension polymerization of styrene monomer to produce polystyrene comprising the steps of (a) heating a polymerization suspension comprising the styrene monomer to a temperature of at least 60 DEG C, (b) dosing an initiator to said heated polymerization suspension during the polymerization reaction over a period of more than 90 minutes to less than 5 hours, in a continuous manner or intermittently in at least 2 portions, said period starting at a monomer conversion of 65% of less and said initiator having a half-life at the temperature at which it is dosed of not more than 60 minutes, wherein a brominated flame retardant is present in the polymerization suspension during the polymerization reaction. |
| priorityDate |
2009-12-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |