http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2562969-C2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1f8713f6ace083308920724981592661 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F210-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F212-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F210-10 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F210-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F210-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F212-12 |
| filingDate | 2011-04-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2015-09-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ed3a47ba81c8cb73523a4ad16997e22b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0c46384faee730c8619956d4dabd2f1d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4aea9670cc354932b2f4d255fb491fc9 |
| publicationDate | 2015-09-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | RU-2562969-C2 |
| titleOfInvention | Methods of producing alkylstyrene and isoolefin copolymers |
| abstract | FIELD: chemistry. n SUBSTANCE: present invention relates to a method of producing copolymers of C 4-7 isoolefin monomers and C 1-7 alkylstyrene monomers. Described polymerisation method for producing polymers from C 4-7 isoolefin monomers and alkylstyrene monomers, the method including the following steps: a) feeding raw material streams into a reactor, the raw material streams including isoolefin and alkylstyrene monomers, where an alkyl substitute in the alkylstyrene is C 1-7 alkyl, a diluent which includes methyl chloride and optionally 5-50 vol % of at least one hydrofluorocarbon and/or a nonpolar diluent, and a catalyst system, wherein the catalyst system is selected from either i) a weak Lewis acid with a HCl initiator, or ii) ethylaluminium dichloride, an initiator and an alcohol, an ester or particles containing ions selected from organic salts of the following: quaternary ammonium halides, quaternary phosphonium halides or oxonium ions; and b) providing contact between raw material streams inside the reactor such that monomers form a polymer in a suspension, wherein content of the polymer in the suspension provides concentration of the suspension higher than 22 wt %, wherein the molar ratio of the formed polymer to the initiator is not more than 4 moles polymer per mole initiator. An isoolefin-alkylstyrene polymer obtained using said method is also described. n EFFECT: obtaining a stable polymer suspension, high output and improved polymer properties. n 8 cl, 1 tbl, 4 ex |
| priorityDate | 2010-06-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 181.