http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-2809904-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5c24684033fba97d1ad845ce453a57e3 |
| classificationCPCAdditional | 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/C08K5-03 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J9-0019 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-20 |
| filingDate | 1978-03-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1d52c95d6c8f6111a8fe285aaf8065bf http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_58ab66a2c9304dd8d82c5e183c73ef96 |
| publicationDate | 1979-09-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | DE-2809904-A1 |
| titleOfInvention | FINE PARTITION, EXPANDABLE STYRENE POLYMERIZED |
| abstract | Fine-particle expandable styrene polymers contain 0.005-0.3 (0.01-0.2)wt.% based on polymer, of alpha, beta-dibromoethyl benzene. Homo- or co-polymerisation is carried out in aq. suspension in presence of a blowing agent, with addn. of the dibromoethyl benzene before or during polymerisation. The dibromoethyl may be produced in situ from styrene, by direct addn. of Br2, which eliminates the need for a separate bromination plant. Used in moulding of polystyrene foam articles by pre-expansion in steam or hot gas, followed by blowing and fusing the beads in a mould. Cooling time in the mould before the part can be removed without cracking is reduced, giving increased output at lower cost. |
| priorityDate | 1978-03-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 49.