http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-611255-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_009406b4b9a236e874f15d90bb81c59e http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_63b57ab4544a192008203f420af4d7b1 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_2fa8f8941ecc2d9521285617dbb93322 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F110-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F36-04 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F36-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F110-00 |
| filingDate | 1946-04-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1948-10-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-611255-A |
| titleOfInvention | Improvements in or relating to the low temperature polymerisation of olefines |
| abstract | High molecular weight polymers of those olefines and/or diolefines which polymerize to high molecular weight products at low temperature using a Friedel Crafts type catalyst are prepared by mixing with a solution of the monomer/s, a solution of a Friedel-Crafts type catalyst, the concentration of which is less than 0.1 per cent by weight, and which is introduced to the mixing zone at a high rate in a thick unbroken stream, the temperatures of all solutions being maintained below -10 DEG C. without the aid of an internal refrigerant. Monomers specified are isobutene, styrene, a -methyl styrene, vinyl xylenes, butadiene, cyclopentadiene and divinyl benzenes. Solvents specified are methylene, ethyl and methyl chlorides. An alcohol such as ethanol or isopropanol, which may be pre-cooled, may be added to quench the catalyst and precipitate the product. Specification 611,256 is referred to. |
| priorityDate | 1946-04-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 30.