http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-925795-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_03fe2448dfa9f7b070aa92557de966e3 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2531-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2531-22 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F36-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2-465 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C2-46 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F36-04 |
| filingDate | 1960-05-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1963-05-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-925795-A |
| titleOfInvention | Improvements in or relating to the production of cycloolefinic compounds |
| abstract | Cyclic olefins are produced by the polymerization of conjugated dienes in the presence of a catalyst of the formula [R3P]xNi(CO)4-x or [(RO)3P]xNi(CO)4-x, where R is an organic radical and x is 1 or 2 at a temperature of 90-250 DEG C. in the absence of an extraneous solvent or 150-250 DEG C. in the presence of a solvent. The diene may be butadiene, which forms vinylcyclohexene, 1,5-cyclooctadiene, and 1,5,9-cyclododecatriene, isoprene, piperylene, phenyldiolefins, 2,3-dimethylbutadiene or 2,4-hexadiene, and may contain a polymerization inhibitor. Activators and/or solvents may be used in the higher temperature range, e.g. acetylene, (di)isobutylene, bicycloheptadiene, (methyl)cyclopentadiene, di-(methyl)-cyclopentadiene, benzene, petroleum ethers, petroleum naphthas, tetrahydrofuran, toluene, p-cymene, or 1,5-cyclooctadiene. The pressure may be 14-70 Kg/cm2 using vapour or liquid phase. The reaction time may be 0,16 to several hours or in continuous processes in a tubular reactor of volume 80 ml., feed rates of 20-1000 ml./hour may be used. Solid dehydrating agents may be added. Specifications 701,106 and 716,133 are referred to.ALSO:Halogenated cyclic olefins are produced by the polymerisation of halogenated conjugated dienes in the presence of a catalyst of the formula [R3P]xNi(CO)4-x or [(RO)3P]xNi (CO)4-x, where R is an organic radical and x is 1 or 2 at a temperature of 90-250 DEG C. in the absence of an extraneous solvent or 150-250 DEG C. in the presence of a solvent. The diene may be chloroprene or 2,3-dichlorobutadiene, or a chlorofluorobutadiene and may contain a polymerisation inhibitor. Activators and/or solvents may be used in the higher temperature range, e.g. acetylene, (di)isobutylene, bicycloheptadiene, (methyl) cyclopentadiene, di-(methyl)- cyclopentadiene, benzene, petroleum ethers, petroleum naphthas, tetrahydrofuran, toluene, p-cymene, or 1,5-cyclooctadiene. The pressure may be 14-70 Kg/cm2 using vapour or liquid phase. The reaction time may be 0.16 to several hours or in continuous processes in a tubular reactor of volume 80 ml., feed rates of 20-1000 ml./hour may be used. Solid dehydrating agents may be added. In an example, chloroprene is converted to chlorinated vinylcyclohexene and cyclooctadiene. Specifications 701,106 and 716,133 are referred to. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2014058144-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9327265-B2 |
| priorityDate | 1959-05-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 57.