| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_387f4749200dfc4f9049ea941b8e7432
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5b6143b4020a3b978b982011baa62887
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d9ac0aa0f53fa5b5260eb383290fb7fb
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_7f9af914ed2fb00cd4f1b8b1a28964e4 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2205-05
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2203-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F220-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-2982
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2333-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2335-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2222-1013 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2-01
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F20-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F220-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L33-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J3-245
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J9-122
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61L15-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J9-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J9-36
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61L15-60 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F20-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-01
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J3-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-36
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61L15-60
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61L15-24 |
| filingDate |
2011-06-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2015-07-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b23b521ca597862e44b53c7cf5d5f81c
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a24d0cb419fea630454a436be4610cfd
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7c53ccf9517b7343ca7c40d27bb0880a |
| publicationDate |
2015-07-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-9074030-B2 |
| titleOfInvention |
Polyacrylic acid-type water absorbent resin and method for producing same |
| abstract |
Provided is a method for producing a water absorbent resin, which promotes the formation of interconnected voids (continuous gas bubbles) in a foamed polymer (foam-like water absorbent resin) by a more convenient method, and produces with high efficiency a water absorbent resin which exhibits a high water absorption rate even when stepped into a sheet form or a powder form in hygiene articles and the like. Disclosed is a a method for producing a polyacrylic acid-type water absorbent resin, comprising (A) a step of obtaining an aqueous solution of acrylic acid-type monomers containing gas bubbles dispersed therein; (B) a step of polymerizing the aqueous monomer solution and thereby obtaining a foamed polymer; and (C) a step of heating and drying the foamed polymer,n wherein gas bubbles are incorporated such that the volumetric expansion factor defined by the following formula (1); [Formula 1]n nVolumetric expansion factor=(Volume of aqueous monomer solution after gas bubble dispersion)/(volume of aqueous mononer solution before gas bubble dispersion) Formula (1);n nexceeds 1.1 times, and the aqueous monomer solution having a monomer concentration defined by the following formula (2);n [Formula 2]n nMonomer concentration [wt %]=(Weight of a monomer)/{(weight of a monomer)+(weight of solvent)}×100 Formula (2);n nof 40% by weight or greater is boiling polymerized at a temperature of 100° C. or higher. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9315640-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11001692-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10391195-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2015259494-A1 |
| priorityDate |
2010-06-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |