| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0efa077d881a96aeb1e29b21ef1bbb58 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2325-06 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J9-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J9-20 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F12-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-44
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F12-08 |
| filingDate |
1993-06-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1996-05-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b83cd2a96a07cc26f57686f5066b893d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_10771174376eadb01693dc8ba5899a21 |
| publicationDate |
1996-05-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-0575872-B1 |
| titleOfInvention |
Process for producing pearl-shaped expandable styrene polymers |
| abstract |
Bead-formed expandable styrene polymers are obtained by suspension polymerisation of styrene with addition of from 1 to 10% by weight of C3- to C7-hydrocarbons and/or carbon dioxide as blowing agent and optionally conventional additives, where the suspension stabiliser used is a mixture of magnesium pyrophosphate, a sulphonate group-containing extender and an alkali or alkaline-earth metal carboxylate, magnesium pyrophosphate being prepared directly before the polymerisation by combining an aqueous solution with an alkali metal pyrophosphate with at least the stoichiometrically necessary amount of a magnesium salt. |
| priorityDate |
1992-06-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |