| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8fb9f44db08d1c42a53f3d28eaae416f |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K2003-2241
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K9-08 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K3-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09D17-008
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K5-37
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09D11-037
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09D11-107
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09D11-322
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09D11-326
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K9-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K9-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2-44
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B41J2-01
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09D17-001
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F212-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F220-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09D7-62 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K3-22 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F212-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09D17-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-44
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K9-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K9-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09D11-326
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09D11-322
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09D11-106
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B41J2-01
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K5-37 |
| filingDate |
2017-12-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2022-05-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ac9f4d110926e49da683c1d465da8efb
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7145d684216936d321ca2372c30fd76a |
| publicationDate |
2022-05-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-11325992-B2 |
| titleOfInvention |
Method for manufacturing white fine particle dispersion |
| abstract |
The present invention relates to a process for producing a dispersion of white fine particles from which a white ink that is capable of exhibiting excellent hiding power, rub fastness and water resistance even when printed on a low-water absorbing printing medium can be obtained by incorporating the dispersion of the white fine particles into the ink, and a water-based ink for ink-jet printing which contains the white fine particles. The present invention provides [1] a process for producing a dispersion of white fine particles, including step 1 of mixing titanium oxide and a polymer dispersant at a pH value that is not less than an acid dissociation exponent (pKa) of at least a part of an acid component of the polymer dispersant to thereby obtain a titanium oxide dispersion, in which an isoelectric point (A) of the titanium oxide and the acid dissociation exponent (pKa) (B) of the polymer dispersant satisfy a relationship represented by the formula: A−B≥0, the polymer dispersant contains a constitutional unit derived from a hydrophobic monomer, and a volume median particle size (D 50 ) of particles in the titanium oxide dispersion is from 150 to 500 nm; and step 2 of adding a polymerizable monomer to the titanium oxide dispersion obtained in the step 1 to subject the polymerizable monomer to polymerization reaction, thereby obtaining the dispersion of the white fine particles, and [2] a water-based ink for ink-jet printing which contains the white fine particles obtained above. |
| priorityDate |
2016-12-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |