http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2009105482-A
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F222-385 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29K2033-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F222-103 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-2982 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2500-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2400-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29K2995-0092 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61L15-60 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29B9-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61L15-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F222-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F220-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2-34 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-10 |
| filingDate | 2007-07-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2010-08-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | RU-2009105482-A |
| titleOfInvention | METHOD FOR PRODUCING WATER-ABSORBING POLYMER PARTICLES WITH HIGH PERMEABILITY BY POLYMERIZATION DROPS OF MONOMERIC SOLUTION |
| abstract | 1. A method for producing water-absorbing polymer particles by polymerizing drops of a monomer solution containing! a) at least one ethylene unsaturated monomer having acid groups,! b) at least one stapler,! c) at least one initiator,! d) water! in the gas phase surrounding the droplet, characterized in that the monomer solution contains polyatomic cations, and the polymer particles have an average diameter of at least 150 microns. ! 2. The method according to claim 1, characterized in that the monomer solution contains from 0.001 to 0.25 wt.%, Polyatomic cations, calculated on the monomer a). ! 3. The method according to claim 1, characterized in that the polyhydric cation is at least triatomic. ! 4. The method according to claim 1, characterized in that the monomer a) up to at least 50 mol% is acrylic acid. ! 5. The method according to claim 1, characterized in that the polymer particles have an average diameter of at least 200 microns. ! 6. The method according to claim 1, characterized in that at least 90 wt.%, The polymer particles have a diameter of from 100 to 800 microns. ! 7. The method according to claim 1, characterized in that the carrier gas flows through the reaction space. ! 8. The method according to claim 7, characterized in that the carrier gas leaving the reaction space is returned at least partially after passage. ! 9. The method according to claim 7, characterized in that the oxygen content of the carrier gas is from 0.001 to 0.15 vol.%. ! 10. The method according to one of claims 1 to 9, characterized in that the obtained polymer particles are dried and / or additionally crosslinked in at least one next stage of the method. ! 11. Water-absorbing polymer particles, and the polymer particles have an average sphericity of at least 0.84, the content of |
| priorityDate | 2006-07-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 29.