http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-4208992-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0efa077d881a96aeb1e29b21ef1bbb58 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2325-04 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J9-0052 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K5-57 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J9-0019 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K5-57 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-44 |
| filingDate | 1992-03-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b83cd2a96a07cc26f57686f5066b893d |
| publicationDate | 1993-09-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | DE-4208992-A1 |
| titleOfInvention | METHOD FOR PRODUCING PEARL-SHAPED EXPANDABLE STYRENE POLYMERISATES WITH A REDUCED INNER WATER CONTENT |
| abstract | A process is disclosed for producing beaded, expansible styrene polymers that contain: (a) polystyrene and/or styrene copolymer with at least 50 % by weight styrene incorporated by polymerization; (b) 0.001 to 0.2 % by weight, in relation to (a), of an organic tin compound; and (c) 2 to 10 % by weight, in relation to (a), of an aliphatic C3-C7-hydrocarbon and/or carbon dioxide as a blowing agent. Styrene and possibly other comonomers are polymerized in an aqueous suspension and before 50 % thereof are reacted 0.001 to 0.20 % by weight of an organic tin compound, and possibly 0.2 to 4 % by weight, in relation to the monomer weight, of an organic bromine compound, are added to the mixture; 2 to 10 % by weight of a C3-C7-hydrocarbon and/or carbon dioxide are added before, during or after polymerization as a blowing agent. |
| priorityDate | 1992-03-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 66.