http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-687521-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d66aced64b418a4f422589fa7eee73a2 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F36-04 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F36-04 |
| filingDate | 1950-10-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1953-02-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-687521-A |
| titleOfInvention | Improvements in or relating to the copolymerization of diolefins and aromatic hydrocarbons |
| abstract | Copolymers are prepared by reacting a diolefin with an aromatic hydrocarbon which has no unsaturation in a side chain at a temperature below 0 DEG C. in the presence of a dissolved Friedel-Crafts catalyst such as aluminium chloride, aluminium bromide, titanium tetrachloride, boron trifluoride or uranium chloride. The diolefin may be butadiene, di-methyl butadiene, methyl pentadiene, cyclopentadiene, methylcyclopentadiene or myrcene and the aromatic hydrocarbon may be benzene, toluene, a xylene, cymene, ethyl, di-ethyl, n-propyl, isopropyl, tetra-methyl, sec.-butyl, tert.-butyl, amyl, tert.-amyl or hexa-methyl benzene, mesitylene, durene, isodurene, phenanthrene, anthracene, acenaphthene, tetralin or hydrindene. The catalyst may be dissolved in methyl, ethyl or methylene chloride or ethylidene fluoride. The diolefin and/or the catalyst may be added incrementally during the reaction. The reaction may be carried out in two stages in the first of which a non-alkylated or lesser-alkylated aromatic hydrocarbon is reacted with an olefin in the presence of a Friedel-Crafts catalyst to produce an alkylated aromatic compound which is then reacted in a second stage with the diolefin with additional catalyst to effect the copolymerization. The copolymers may be reacted with linseed oil to produce surface coating materials.ALSO:Copolymers prepared by reacting a diolefin with an aromatic hydrocarbon which has no unsaturation in a side chain (see Group IV (a)), may be heated with linseed oil to produce surface coating materials. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3164576-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2768147-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2848512-A |
| priorityDate | 1949-12-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 77.