http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-945701-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_70ec63d39d6704bacc5c7068c93ded43 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2-46 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F36-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2-54 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F36-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-46 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-54 |
| filingDate | 1961-06-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1964-01-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-945701-A |
| titleOfInvention | Process for polymerizing unsaturated monomers using high energy ionizing radiation |
| abstract | Ethylenically unsaturated monomers are polymerized by exposing them to high energy radiation in the presence of a material consisting of finely divided particles of an alkali metal halide, a substance having at least one OH group or an oxide of boron or aluminium. The polymerization is preferably carried out in bulk, but may also be effected in organic solvents or in aqueous emulsion systems containing the usual emulsifiers. The examples describe the polymerization of the following monomers: alpha-methyl styrene, dichlorostyrene, diisopropylstyrene, p-methoxystyrene, p-tertbutylstyrene, isobutylene, mixtures of isobutylene with butadiene, isoprene, piperylene, propylene and alpha-methylstyrene, and isoamylene, in the presence of the following finely divided solids: lithium fluoride, chloride, bromide and iodide, sodium chloride, potassium chloride, bromide and iodide, cesium fluoride and chloride, a mixture of lithium and magnesium chlorides, calcium, barium, lithium, bismuth, copper and nickel hydroxides, boric anhydride, aluminium oxide, alumina-silica, alumina-magnesia and alumina-titania. The particles of inorganic material may be used in unsupported or in supported form, e.g. they may be placed on an adhesive material such as an epoxy resin which is then cured. The high energy radiation may be supplied by X-rays, neutron, proton and electron beams, gamma rays. Other monomers listed include acrylic and methacrylic esters, amides and nitriles, styrene, vinyl and allyl esters and ethers, vinyl ketones, vinyl and vinylidene chlorides and olefins. Copolymers of isobutylene with diolefines produced by the above process may be cured either by treatment with curing agents, e.g. sulphur, sulphur chloride, sulphur thiocyanate and thiuram polysulphides, or by a chlorination-dehydrochlorination procedure. |
| priorityDate | 1960-06-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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