| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_32260d8b93ef37639f57fb1f65e8a5fa |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61K47-32
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2800-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2333-10 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61K47-32
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F220-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F220-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2-001
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61K9-5026
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J3-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J3-126 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F120-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F120-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K9-28 |
| filingDate |
2019-11-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5bd2d12172006cce6d3d299b937c5101
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_665dfdc31f0caed1f07b8321e27269d1 |
| publicationDate |
2021-10-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-3891191-A1 |
| titleOfInvention |
Process for preparing polymeric particles |
| abstract |
The invention relates to a process for preparing polymeric particles, comprising polymerized units of methacrylic acid and further monomers, with an overall monomer composition by weight comprising polymerized units of 5 to 25 % by weight methacrylic acid and 75 to 95 % by weight of further monomers, wherein the further monomers are selected from C1- to C4-alkylesters of methacrylic acid and/or C1- to C4-alkylesters of acrylic acid, by stepwise or gradient emulsion polymerization, wherein the ratio by weight of polymerized units of methacrylic acid to further monomers is increasing stepwise or in a gradient from the center to the surface of the particles and wherein the polymeric particles are obtained in the form of an aqueous dispersion. |
| priorityDate |
2018-12-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |