http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-569071-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6ecb2c795fb082222c2bbc3195cf034d |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F36-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F236-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F236-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F36-04 |
| filingDate | 1943-04-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1945-05-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-569071-A |
| titleOfInvention | Improvements in polymers of hexadienes |
| abstract | The mixture of 2-methyl- and 4-methyl-pentadiene-1,3, produced by dehydration of 2-methyl-pentanediol-2,4 which is itself made by hydrogenation of diacetone alcohol, is polymerized alone or copolymerized with such polymerizable compounds as butadiene, acrylonitrile, styrene and methyl methacrylate. It is also incorporated as a modifier in the copolymerization of butadiene with other polymerizable compounds. In examples: (1) the mixed methyl pentadienes are heated with sodium and oleic acid in a steel tube at 45-100 DEG C. for several days to yield a rubber-like polymer. Solvent or emulsion polymerization may also be used; (2)-(6) mixtures in varying proportions of the methyl pentadienes and butadiene, acrylonitrile, styrene or methyl methacrylate are emulsified in a solution of the sodium salt of higher fatty alcohol sulphuric esters, buffered to, say, 6.5-8, an oxidizing catalyst such as sodium perborate, and promoters or modifiers such as carbon tetrachloride, acetaldehyde, and potassium cyanide added, and the mixtures polymerized, usually at temperatures of 38-50 DEG C.; (7)-(9) mixtures of butadiene and acrylonitrile are copolymerized in the presence of the mixed methyl pentadienes in amounts up to 16 per cent of the other monomers, to soften the copolymers. |
| priorityDate | 1942-08-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 40.