| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_cdf73a4680fe412a5de468cad10ef681 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F212-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F212-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F210-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F236-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F236-04 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F210-12 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F212-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-14 |
| filingDate |
2015-04-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0b489567e6f9cc948423aca7e720e0f1
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8df424b327ed9177b544f7f6a5b6a30d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_14931f008aa5ebeafceb1372243ba3cb |
| publicationDate |
2015-11-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CA-2947072-A1 |
| titleOfInvention |
Hydrofluorinated olefins (hfo's) as diluents for butyl rubber production |
| abstract |
A process for producing a copolymer involves contacting at least one isoolefin monomer with at least one multiolefin and/or ß-pinene monomer in the presence of at least one Lewis acid and at least one initiator in a diluent. The diluent contains a hydrofluorinated olefin (HFO) comprising a tetrafluorinated propene. Copolymers produced by a process of the present invention have a cyclic oligomer content lower than comparable polymers produced in a butyl rubber slurry process using 1,1,1,2- tetrafluoroethane and/or methyl chloride as a diluent as well as a more favourable ratio of C21/C13. Hydrofluorinated olefins used in the present invention are better diluents for butyl slurry cationic polymerization than saturated hydrofluorocarbons. |
| priorityDate |
2014-04-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |