| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_31b788312cfcc435eb42e1ca6e83dd28 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-3206
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-3855
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-42
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-0828
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F283-006
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F290-067
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-6685
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-6674
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-672
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-755
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-44
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-4825
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-4854 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-38 |
| filingDate |
2019-09-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2022-02-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2c5dc89d9905c6eb53384212366c50cf
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f7f4053496bef9a4c301708bf44cc426
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_25b64558d536414a7fd7f3d56b5fd36e |
| publicationDate |
2022-02-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-11254780-B2 |
| titleOfInvention |
Method for preparing aqueous polyurethane dispersion |
| abstract |
A method for preparing an aqueous polyurethane dispersion includes the following steps. The method characterized in that it introduces an ethoxy group to sodium ethylenediamine sulfonate (H2N—CH2CH2NHCH2CH2SO3Na) serving as an anionic chain extender to form sodium ethylenediamino ethoxyethyl sulfonate (H2NCH2CH2NHCH2CH2OCH2CH2SO3Na). Next, hydrophilic groups of sodium ethylenediamino ethoxyethyl sulfonate are used to prepare an aqueous polyurethane to improve the flowability of the resin, in which the polyurethane prepolymer has an isocyanate group at its end. More than one acrylate monomer is used for dilution and reduction of viscosity, and hydrophilic and amine groups containing sulfonate is used for water dispersion and to carry out a chain extension reaction. After that, an initiator is added for acrylic polymerization, so as to modify polyurethane with graft acrylic. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11639414-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2022127406-A1 |
| priorityDate |
2019-04-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |