| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b55c349b43c3ecba4977fd52cc8f8c67 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S526-909 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F112-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F112-36
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2-20 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F12-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F10-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F212-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F212-36
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F112-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F112-36 |
| filingDate |
2005-06-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2013-01-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fa71c43957b18dac9b3a1e327ff3f6cc
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5aa72ffe38c76808d33718aa321f0ef5
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a7fe29486ac0c10e226cf741c4595928 |
| publicationDate |
2013-01-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CA-2509135-C |
| titleOfInvention |
Production method of porous spherical particles of vinyl polymer |
| abstract |
The present invention provides a method of producing porous spherical particles, which includes suspension polymerization of a multifunctional monomer having two or more vinyl groups and a vinyl monomer having one vinyl group in an aqueous medium in the presence of a porogen and a distribution stabilizer, wherein the distribution stabilizer is polyvinyl alcohol having a saponification degree of 75 to 85 mol%. According to the method of the present invention, generation of particle agglomerates and large particles can be suppressed and porous spherical particles having a desired average particle size and a narrow particle size distribution can be conveniently produced. |
| priorityDate |
2004-06-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |