http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1290055-A
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F36-04 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F36-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-48 |
| filingDate | 1970-05-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1972-09-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1290055-A |
| abstract | 1290055 Polymerizing conjugated diolefins JAPAN SYNTHETIC RUBBER CO Ltd 27 May 1970 [31 May 1969] 25557/70 Heading C3P A process for producing homo- or co-polymers of conjugated dienes comprises polymerizing a conjugated diene alone or with a vinyl aromatic hydrocarbon in the presence of a lithium-based initiator in a hydrocarbon solvent, the quantity of initiator required for polymerization being divided into portions A and B in a molar ratio A : B of 1 : 3 to 15, the portion A being added at the outset in order to initiate polymerization and the portion B being added when the conversion reaches 20-60% by weight, the B portion being added without deactivating the active species initiated by the A portion. The examples relate to the polymerization of butadiene, isoprene and butadiene/styrene using n-butyl-lithium. Potassium dodecylbenzene sulphate may be present as a randomizing agent. |
| priorityDate | 1969-05-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 21.