http://rdf.ncbi.nlm.nih.gov/pubchem/patent/ES-2802200-T3
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_04a7ba444ca28d803c7761a90410e508 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F120-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F20-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2-01 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2-38 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-01 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F20-06 |
| filingDate | 2015-12-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-01-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_78a6d5e14704d1143d96af2ee6a7b683 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f5dcd8f9cb0424a1180acf7f6bf50892 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_387c99026e8080a7cf6c9bf72d8cc9eb |
| publicationDate | 2021-01-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | ES-2802200-T3 |
| titleOfInvention | Procedure for the continuous production of anionic polymers using radicals |
| abstract | Process for the continuous production of an anionic polymer, which has a solids content (SC) of between 20% and 60% by weight, with respect to the total weight of the formula, and a molecular weight Mw less than 10,000 g / mol, measured by steric exclusion chromatography (SEC) as described in the description, by radical polymerization, characterized in that it comprises the following steps: a) providing at least one monomer chosen from acrylic acid, methacrylic acid and their mixtures, being possible to partially neutralize the monomer, b) providing water, optionally hot water, c) providing at least one initiator, d) optionally providing at least one chain transfer agent, e) introducing the components of steps a), b), c) and d) in a tubular reactor having a length LR of at least 5 m and comprising at least one tubular section of length LS and of internal diameter D such that LS is at least 20 times greater than D, in which each tubular section comp renders, over its entire length, a plurality of stationary deflectors, opposite to the current, in the form of washers having a diameter identical to the internal diameter of the tubular section, thus forming a fluid in the tubular reactor, f) connecting the tubular section to a device that allows subjecting the fluid to an oscillatory movement, g) to carry out a polymerization reaction in the reactor, optionally with a heating medium that makes it possible to start the polymerization reaction, with a residence time in the upper reactor at 1 min, the residence time, the size of the holes in the baffles, their separation and the movements of the device being selected in order to provide, at any point in the reactor, a good homogeneity of the mixture, h) obtain the anionic polymer in solution in water at the outlet of the reactor. |
| priorityDate | 2014-12-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 57.