http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-100246714-B1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c4b5184b7a8fe02a0c2cc4e509230214 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2367-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L67-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K2003-2227 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K2201-003 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K2003-265 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K3-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B5-62 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K3-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J5-18 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J5-18 |
| filingDate | 1998-01-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2000-03-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a98127fbf2ea056efd22d5441a1a69d0 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fe4a1511629940e69dc689010eea239d |
| publicationDate | 2000-03-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-100246714-B1 |
| titleOfInvention | Manufacturing method of biaxially oriented polyester film for magnetic recording medium |
| abstract | 1. TECHNICAL FIELD OF THE INVENTIONn n n A method for producing a polyester film having a biaxial orientation used for a magnetic recording medium.n n n 2. The technical problem that the invention is trying to solven n n The present invention is to provide a method for producing a polyester film having excellent surface protrusion retention, scratch resistance and wear resistance while improving the productivity of the polyester film.n n n 3. Summary of Solution to Inventionn n n The present invention for solving the above problems is "A method for producing a biaxially oriented polyester film for a magnetic recording medium in which calcium carbonate particles and alumina particles are mixed and added as a lubricant. The particles had a maximum particle diameter of less than 5 µm and 40 to 60 particles of 2 µm or more and less than 5 µm per 0.15 mg based on 15 wt% of the slurry, and 0.01% of hard calcium carbonate having an average particle diameter of 0.01 µm to 3 µm. ~ 4%, B particles with a maximum particle diameter of less than 5㎛, Mohs hardness of 9 or more, 0.005 containing 10 or less particles having a particle diameter of 2㎛ or more and less than 5㎛ per 0.15mg based on 15% by weight of slurry Ultrafine alpha alumina particles having a thickness of 0.01 to 0.15 µm so as to be 0.01% to 4% ”.n n n 4. Important uses of the inventionn n n It has a use as a manufacturing method of the biaxially oriented polyester film for magnetic recording media. |
| priorityDate | 1998-01-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 45.