http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H11116608-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_fcc0b66123940d1b32783569ebfa2d45 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2-24 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-24 |
| filingDate | 1997-10-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_145633c34976b012f51b559c4555dd72 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_40a49fbb1eec9008d8382f0ab1a6f569 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_00ec205e1ac3edb18001f17b01892e15 |
| publicationDate | 1999-04-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H11116608-A |
| titleOfInvention | Polymer particles and method for producing the same |
| abstract | PROBLEM TO BE SOLVED: To provide a method for producing polymer particles capable of producing, with a single-stage polymerization operation, polymer particles having a larger particle diameter and a uniform diameter than conventional soap-free polymerization with good reproducibility. Polymer particles are provided. SOLUTION: The method for producing polymer particles is to form primary polymer particles by polymerizing a vinyl monomer in an aqueous medium in the presence of a polymerization initiator, for example, a polymerization initiator generating an anionic radical. Before polymerization and 1 In at least one of the formation of the secondary polymer particles, a first polymer having a polarity opposite to the polarity of the surface charge of the primary polymer particles , A surface active agent, for example, a cationic surfactant, is added to lower the surface potential of the primary polymer particles to aggregate the primary polymer particles, thereby forming core polymer particles. Thereafter, the polymerization is further continued in a state where the dispersion of the core polymer particles is stabilized by adding a second surfactant, for example, an anionic surfactant. The second surfactant is added after the end of the nucleation period when the number of the core polymer particles becomes substantially constant. |
| priorityDate | 1997-10-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 62.