| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8fb9f44db08d1c42a53f3d28eaae416f |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S428-90
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-25
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-31591
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-2982 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B5-7356 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09D175-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09D175-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09D7-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09D5-23
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09D101-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B5-73
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B5-735
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09C1-48 |
| filingDate |
1990-09-04^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_60d4560306d69fa5f1f2c3d7d436331b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_878e2b5ff9d73f612d2d00b800e0bb41 |
| publicationDate |
1991-03-13^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-0416548-A2 |
| titleOfInvention |
Magnetic recording material |
| abstract |
A magnetic recording medium for use in a belt-driven cartridge is disclosed, which comprises a non-magnetic support provided a magnetic layer on the principal surface thereof and a back coat layer on the opposite surface thereof, wherein a back coat layer containing (a) a carbon black having a mean grain diameter of 20 to 100 nm; (b) a titanium oxide having a mean grain diameter of 100 to 600 nm; and (c) a binder consisting essentially of a pyroxylin and a polyurethane resin, provided that the weight proportion of component (a) to component (b) is in the range of 99:1 to 60:40, the weight proportion of the sum of component (a) and component (b) to component (c) is in the range of 70:30 to 20:80, and the weight proportion of the pyroxylin to the polyurethane resin in said component (c) is in the range of 10:90 to 90:10. |
| priorityDate |
1989-09-04^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |