http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-WO2018180864-A1
Outgoing Links
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|---|---|
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| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F20-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61L15-60 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F8-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61L15-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F265-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61F13-53 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J20-3007 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J20-28033 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J20-28047 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J20-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J20-261 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J20-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J20-28004 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F20-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61F13-53 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J20-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J20-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F265-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G59-02 |
| filingDate | 2018-03-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-02-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-WO2018180864-A1 |
| titleOfInvention | Water absorbent resin |
| abstract | Provided is a water-absorbing resin that can improve the gel shape stability of an absorber and has excellent water-absorbing performance. The water-absorbent resin of the present invention is a polymer of a water-soluble ethylenically unsaturated monomer and has the following properties (1) and (2). (1) The amount of collapse at the time of 20-fold swelling is 30% by mass or less. (2) The amount dissolved in physiological saline is 25% by mass or less. (Method of measuring the amount of collapse at the time of swelling 20 times) 5 g of the water-absorbing resin is added to 100 g of physiological saline, and the water-absorbing resin absorbs the physiological saline to obtain a gel. The obtained gel is divided into approximately five equal parts, each of which is placed in a cylindrical mold having a length of 3.6 cm and a radius of 2.8 cm and molded. The masses of the five molded cylindrical gels are measured, and the three gels except for the heaviest and lightest are used as samples. After measuring the mass Wa (g) of each sample, the sample whose mass was measured was put into the uppermost sieve which was combined with a 5.6 mm sieve with a sieve in the order of a JIS standard sieve and a saucer, and a low-tap type shaker (rotation speed: 290 rpm) And the number of impacts was 165 rpm) for 10 minutes, and the mass Wb (g) passed under the sieve was measured. The amount of decay of the sample is calculated from the following equation. Amount of disintegration of sample (%) = Wb (g) / Wa (g) × 100 The average value of the disintegration amounts of the three samples to be measured is defined as the disintegration amount when the water-absorbent resin swells 20 times. |
| priorityDate | 2017-03-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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