| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1374dd16777534b65ad4422333245af8 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-259
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-31786
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-257
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-254
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-24372
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S428-91 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B5-62
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B5-73935 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29K67-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29L7-00 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29C55-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B5-733
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B5-73
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B5-71
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L67-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L67-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K7-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K3-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J5-18 |
| filingDate |
1991-04-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b561b067e09220c5bc66def18baa754d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6ee3387bf0ea81161bc0fa39813cfe8e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8328a0e301734acb44dcd8405a60defc
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1e3488a4e83656893caf6705852f2e03
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_efdacbc2d8927431b92ceb181d833119 |
| publicationDate |
1991-10-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-0453276-A2 |
| titleOfInvention |
Biaxially oriented polyester film for magnetic recording media |
| abstract |
A biaxially oriented polyester film for magnetic recording media improved in slipperiness, shaving resistance and scratch resistance by protrusions formed on the film surface, namely, a polyester film for magnetic recording media wherein the film is a biaxially oriented polyester film which containsn (I) heat resistant high molecular particles having an average partide size of 0.3 to 1.5 µm in 0.001 to 0.5 % by weight of the polyester, and (II) alumina particles having an independent existence rate of 80 % or more and an average particle size of 0.06 to 0.2 µm in 0.05 to 1.0 % by weight of the polyester and/or colloidal silica partides having an independent existence rate of 80 % or more and an average partide size of 0.3 µm or less in 0.05 to 2.0 % by weight of the polyester ; wherein the distribution curve, in the range where the height (x: µm) is 0.05 µm or more and the number of the protrusions (y: per mm 2 ) is 30 protrusions/mm 2 or more, of protrusions formed on the film surface satisfies the following formula A wherein x is the height (µm) from the standard level and Y is the number of protrusions (per mm 2 ) counted when cutting was made in parallel to the standard level at a height of x ; and wherein change (Δµk) of running friction coefficient of the film is below 0.15. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0572224-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5620774-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0811653-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0811653-A2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0609060-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5362571-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0723259-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5556691-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5439738-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5463015-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0950681-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5516574-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0950681-A4 |
| priorityDate |
1990-04-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |