http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1055688-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_47becd0bad1e8c65826be1edac09d306 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2602-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2602-42 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2-50 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C13-465 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C13-465 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C2-50 |
| filingDate | 1965-09-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1967-01-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1055688-A |
| titleOfInvention | Unsaturated bicyclic hydrocarbons with condensed nuclei |
| abstract | Tetrahydroindenes of the formula <FORM:1055688/C4-C5/1> in which R and R1 are each hydrogen or methyl are obtained by introducing cyclopentadiene, which may be supplied wholly or in part as dimer, and butadiene, isoprene or dimethylbutadiene into a solvent in a reaction vessel preheated to 80-250 DEG C. and co-dimerizing the feed. The product is preferably subjected to pyrolysis at 300-900 DEG C. to depolymerize homopolymers. The feed may contain 2-5 mols of cyclopentadiene per mol of acyclic diene and the solvent is a C5-C10 saturated or aromatic hydrocarbon. Dimerization is effected at 150-250 DEG C. for 0.5-4 hours, e.g. using autogenous pressure in an autoclave. Low boiling materials may be separated before the pyrolysis which is effected in a heated packed tube. A two-stage pyrolysis may be used, the first at 300-500 DEG C., the second at 500-900 DEG C. after removal of light products. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S5328426-B1 |
| priorityDate | 1964-09-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 28.