http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1000688-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1c7d818864ce69f0dc8548437f22a997 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-52 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-52 |
| filingDate | 1964-06-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1965-08-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1000688-A |
| titleOfInvention | Polymerisation of unsaturated compounds |
| abstract | Non-gaseous monomers having the formula <FORM:1000688/C3/1> in which R1 is hydrogen or an organic radical and R2 is an organic or inorganic radical are polymerized by subjecting a mixture of said monomer together with a catalytic amount of an aluminium alkyl compound <FORM:1000688/C3/2> where R is alkyl, R1 is H, Cl or alkyl and R11 is H or alkyl, provided that when R1 is Cl, R11 is alkyl, to initiation of the polymerization by exposing the mixture to oxygen, but before the polymerization is complete excluding oxygen from the mixture and allowing the polymerization to proceed to completion in the absence of oxygen. The oxygen barrier may be gaseous, e.g. nitrogen, carbon dioxide or a noble gas may be used, or it may be liquid, e.g. any hydrocarbon which evaporates slowly at normal atmospheric conditions of temperature and pressure and does not react with the aluminium alkyl compound may be used, or it may be solid, e.g. mica, wax or any fine powder which does not react with the aluminium alkyl compound may be used. The oxygen barrier may be formed in situ or added subsequent to the initiation of the polymerization reaction. The aluminium alkyl compound is preferably complexed with saturated or unsaturated esters of monocarboxylic acids having 1 to 20 carbon atoms. The storage life of the monomer mixture may be increased by adding maleic or substituted maleic anhydrides. To increase the polymer yield, acrylic acid may be added. In the examples, ethyl acrylate, n-butyl acrylate and t-butyl acrylate were polymerized in the presence of acrylic acid and maleic anhydride using as catalyst diisobutylaluminium hydride complexed with butylacrylate, the oxygen barriers being paraffin wax, mica powder, n-heptane and nitrogen. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2021121434-A1 |
| priorityDate | 1963-07-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 38.