http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-592306-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_dfd9abd27999d5b6ac07b9fcbd8a87b4 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F210-12 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F210-12 |
| filingDate | 1944-10-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1947-09-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-592306-A |
| titleOfInvention | Improvements in or relating to low-temperature olefinic polymerization processes |
| abstract | In the continuous process of low temperature copolymerization of iso-olefines and polyolefines using a Friedel-Crafts catalyst, whilst the addition of catalyst is continued there is added intermittently ammonia, a substituted ammonia or an amine as catalyst neutralizing agent. Usually the reaction is carried out between -10 DEG and -160 DEG C. in a low-freezing solvent and the catalyst solution is added in a continuous stream to the reaction mixture. Optionally a diluent may also be present, specified are ethyl or methyl or methylene chlorides, dichlor-fluor-methane or carbon disulphide. Listed amines are methyl, ethyl, propyl, di-n-butyl, phenyl b -naphthyl, b -naphthyl amines and hexamethyl tetramine. Iso-olefines specified are isobutylene, 2-methyl butene-1 and 2-methyl pentene-1; polyolefines having 4-14 carbon atoms, e.g. isoprene, butadiene, piperylene, dimethyl butadiene, dimethallyl and myrcene. |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 44.