http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S6018822-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1374dd16777534b65ad4422333245af8 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B5-73937 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B5-65 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B5-718 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L77-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B5-73 |
| filingDate | 1983-07-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_56a1326cbbe7645f79d05c44e3ab2aad http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ab366d5555b5de1c4c44ea3771727c7f |
| publicationDate | 1985-01-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S6018822-A |
| titleOfInvention | Thin film type magnetic recording medium |
| abstract | PURPOSE:To obtain a recording medium which can be formed at a high speed, has high productivity and is suitable for a floppy disc having excellent dimensional accuracy by constituting a flexible base plate of an arom. polyamide film having a specified initial Young's modulus and coefft. of linear thermal expansion. CONSTITUTION:A film consists of an arom. polyamide polymer contg. the repetitive structural unit expressed by the general formula independently or in the form of a copolymer in which at least 75mol% of the repetitive unit is a poly- m-phenylene isophthalic amide polymer film. Said film has 1.35-1.41 density and the main refractive index thereof is specified. The polymer is extruded onto a casting roller to obtain an unoriented hydrous film which is successively stretched. The stretched film is dried and heat-set, by which the film is obtd. Said film has >=150kg/mm<2> initial Young's modulus at 200 deg.C an <=2.5X10<-5>cm/cm/ deg.C coefft. of linear thermal expansion. The magnetic recording medium is formed of, for example, a single-layered double-sided medium having the vertically magnetized film consiting of a CoCr alloy film 2 on both sides of a base plate 1 and a two- layered double-sided medium laminated with a soft magnetic material consisting of an NiFe alloy film 3 and a CoCr alloy film 2. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4739739-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H01232533-A |
| priorityDate | 1983-07-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 22.