| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_ad2cd796f8c4dcb425ddcc68707d3444 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-31942
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-31609
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S428-90
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-31511
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-31551 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-4676
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B5-7021
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-0828 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B5-702
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-46 |
| filingDate |
1993-04-28^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1995-05-09^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_234067d60f559ace0e081a9350a8aa04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_acab813d16229746841af981ac4794cf |
| publicationDate |
1995-05-09^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-5413862-A |
| titleOfInvention |
Magnetic recording medium having a magnetic layer comprising a specified polyurethane resin and magnetic particles |
| abstract |
According to the present invention, a magnetic recording medium having a non-magnetic support and a magnetic layer formed thereon is provided. The magnetic layer is formed from a composition containing as its main components ferromagnetic particles and a resinous binder. The binder resin contains a polyurethane resin containing as its components a high molecular weight polyol (A) with a molecular weight of 500 or more and an organic diisocyanate (B). The high molecular weight polyol (A) contains as its components an aromatic polyester diol (A-1) having a metal sulfonate group in an amount of 20 to 600 equivalents/106 g and a polyol (A-2) which has no metal sulfonate group and is in a liquid state at 20 DEG C. The ratio between the aromatic polyester diol (A-1) and the polyol (A-2) is in the range of 10:1 to 1:4. A urethane group is contained in the polyurethane resin in an amount of 600 to 1500 equivalents/106 g. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5747157-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5578376-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6545119-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1035145-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1035145-A2 |
| priorityDate |
1992-04-28^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |