| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d6dacaa0ceae8e4330441f7bb1f70cb0
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8fb9f44db08d1c42a53f3d28eaae416f |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-2998 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61K9-5073
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J20-28021
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61M1-3679
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J20-3291
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J20-28004
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J20-321
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61K9-5089
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J20-3272 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61M1-36
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J20-32
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J20-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K9-50
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J20-28 |
| filingDate |
1987-03-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1987-12-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a96d4ffeba95e17421d7cac183b6c51b |
| publicationDate |
1987-12-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4715961-A |
| titleOfInvention |
Urea adsorbent |
| abstract |
A urea adsorbent and a method for its production are disclosed, the adsorbent comprising hollow microspheres each having an outer layer formed of a urea-permeable polymer and an inner layer formed of a polymer containing a polyoxyalkylene glycol derivative expressed by the following formula: n n --(CH.sub.2).sub.n -O--.sub.m R n n wherein R stands for hydrogen or a methyl group and n is an integer of 2-5 and m is an integer of at least 3. The adsorbent can selectively adsorb urea with a high adsorbing activity and does not interact with other substances than urea and, therefore, is useful as a artificial kidney. The adsorbent may be prepared by subjecting a w/o/w type emulsion to polymerization wherein a radical polymerizable polyoxyalkylene glycol derivative is dissolved in the inner aqueous phase of the emulsion and an oil-soluble radical polymerizable monomer is used as the outer oil phase. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2010159767-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8362291-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2003202958-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8198360-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2005131141-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7544737-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6861473-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2009223899-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2009218290-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2010160538-A1 |
| priorityDate |
1985-08-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |