MAGNETIC RECORDING MEDIUM
PURPOSE:To prevent the separation of magnetic powder from a nonmagnetic substrate so as to obtain a magnetic recording medium having excellent durability by coating the magnetic powder with a resin containing an epoxy resin after once coating the powder with a triazine thiol compound. CONSTITUTION:F...
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| creator | ONO TOSHITSUGU TAKAZAWA TAKAO |
| description | PURPOSE:To prevent the separation of magnetic powder from a nonmagnetic substrate so as to obtain a magnetic recording medium having excellent durability by coating the magnetic powder with a resin containing an epoxy resin after once coating the powder with a triazine thiol compound. CONSTITUTION:For this magnetic recording medium provided with a magnetic layer 2 composed of magnetic powder and a binder on a nonmagnetic substrate 1, the magnetic powder is coated with a resin containing an epoxy group after the powder is once coated with a triazine thiol compound. Since the magnetic powder thus coated is scattered in the binder having a glass-transition temperature higher than that of the resin containing the epoxy group and protected by a so-called double structure of resin, the shock resistance of the magnetic layer is improved and the occurrence or growth of a defect is prevented. As a result, separation of the magnetic powder from the nonmagnetic substrate can be prevented and a magnetic recording medium having excellent durability can be obtained. It is preferable to polymerize the triazine thiol compound with the resin containing the epoxy group. |
| format | Patent |
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CONSTITUTION:For this magnetic recording medium provided with a magnetic layer 2 composed of magnetic powder and a binder on a nonmagnetic substrate 1, the magnetic powder is coated with a resin containing an epoxy group after the powder is once coated with a triazine thiol compound. Since the magnetic powder thus coated is scattered in the binder having a glass-transition temperature higher than that of the resin containing the epoxy group and protected by a so-called double structure of resin, the shock resistance of the magnetic layer is improved and the occurrence or growth of a defect is prevented. As a result, separation of the magnetic powder from the nonmagnetic substrate can be prevented and a magnetic recording medium having excellent durability can be obtained. It is preferable to polymerize the triazine thiol compound with the resin containing the epoxy group.</description><language>eng</language><subject>ADHESIVES ; CHEMICAL PAINT OR INK REMOVERS ; CHEMISTRY ; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS ; CORRECTING FLUIDS ; DYES ; FILLING PASTES ; INFORMATION STORAGE ; INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER ; INKS ; METALLURGY ; MISCELLANEOUS APPLICATIONS OF MATERIALS ; MISCELLANEOUS COMPOSITIONS ; NATURAL RESINS ; PAINTS ; PASTES OR SOLIDS FOR COLOURING OR PRINTING ; PHYSICS ; POLISHES ; USE OF MATERIALS THEREFOR ; WOODSTAINS</subject><creationdate>1993</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19930226&DB=EPODOC&CC=JP&NR=H0546978A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19930226&DB=EPODOC&CC=JP&NR=H0546978A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>ONO TOSHITSUGU</creatorcontrib><creatorcontrib>TAKAZAWA TAKAO</creatorcontrib><title>MAGNETIC RECORDING MEDIUM</title><description>PURPOSE:To prevent the separation of magnetic powder from a nonmagnetic substrate so as to obtain a magnetic recording medium having excellent durability by coating the magnetic powder with a resin containing an epoxy resin after once coating the powder with a triazine thiol compound. CONSTITUTION:For this magnetic recording medium provided with a magnetic layer 2 composed of magnetic powder and a binder on a nonmagnetic substrate 1, the magnetic powder is coated with a resin containing an epoxy group after the powder is once coated with a triazine thiol compound. Since the magnetic powder thus coated is scattered in the binder having a glass-transition temperature higher than that of the resin containing the epoxy group and protected by a so-called double structure of resin, the shock resistance of the magnetic layer is improved and the occurrence or growth of a defect is prevented. As a result, separation of the magnetic powder from the nonmagnetic substrate can be prevented and a magnetic recording medium having excellent durability can be obtained. It is preferable to polymerize the triazine thiol compound with the resin containing the epoxy group.</description><subject>ADHESIVES</subject><subject>CHEMICAL PAINT OR INK REMOVERS</subject><subject>CHEMISTRY</subject><subject>COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS</subject><subject>CORRECTING FLUIDS</subject><subject>DYES</subject><subject>FILLING PASTES</subject><subject>INFORMATION STORAGE</subject><subject>INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER</subject><subject>INKS</subject><subject>METALLURGY</subject><subject>MISCELLANEOUS APPLICATIONS OF MATERIALS</subject><subject>MISCELLANEOUS COMPOSITIONS</subject><subject>NATURAL RESINS</subject><subject>PAINTS</subject><subject>PASTES OR SOLIDS FOR COLOURING OR PRINTING</subject><subject>PHYSICS</subject><subject>POLISHES</subject><subject>USE OF MATERIALS THEREFOR</subject><subject>WOODSTAINS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1993</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZJD0dXT3cw3xdFYIcnX2D3Lx9HNX8HV18Qz15WFgTUvMKU7lhdLcDApuriHOHrqpBfnxqcUFicmpeakl8V4BHgamJmaW5haOxkQoAQDXgh_U</recordid><startdate>19930226</startdate><enddate>19930226</enddate><creator>ONO TOSHITSUGU</creator><creator>TAKAZAWA TAKAO</creator><scope>EVB</scope></search><sort><creationdate>19930226</creationdate><title>MAGNETIC RECORDING MEDIUM</title><author>ONO TOSHITSUGU ; TAKAZAWA TAKAO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JPH0546978A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1993</creationdate><topic>ADHESIVES</topic><topic>CHEMICAL PAINT OR INK REMOVERS</topic><topic>CHEMISTRY</topic><topic>COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS</topic><topic>CORRECTING FLUIDS</topic><topic>DYES</topic><topic>FILLING PASTES</topic><topic>INFORMATION STORAGE</topic><topic>INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER</topic><topic>INKS</topic><topic>METALLURGY</topic><topic>MISCELLANEOUS APPLICATIONS OF MATERIALS</topic><topic>MISCELLANEOUS COMPOSITIONS</topic><topic>NATURAL RESINS</topic><topic>PAINTS</topic><topic>PASTES OR SOLIDS FOR COLOURING OR PRINTING</topic><topic>PHYSICS</topic><topic>POLISHES</topic><topic>USE OF MATERIALS THEREFOR</topic><topic>WOODSTAINS</topic><toplevel>online_resources</toplevel><creatorcontrib>ONO TOSHITSUGU</creatorcontrib><creatorcontrib>TAKAZAWA TAKAO</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>ONO TOSHITSUGU</au><au>TAKAZAWA TAKAO</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>MAGNETIC RECORDING MEDIUM</title><date>1993-02-26</date><risdate>1993</risdate><abstract>PURPOSE:To prevent the separation of magnetic powder from a nonmagnetic substrate so as to obtain a magnetic recording medium having excellent durability by coating the magnetic powder with a resin containing an epoxy resin after once coating the powder with a triazine thiol compound. CONSTITUTION:For this magnetic recording medium provided with a magnetic layer 2 composed of magnetic powder and a binder on a nonmagnetic substrate 1, the magnetic powder is coated with a resin containing an epoxy group after the powder is once coated with a triazine thiol compound. Since the magnetic powder thus coated is scattered in the binder having a glass-transition temperature higher than that of the resin containing the epoxy group and protected by a so-called double structure of resin, the shock resistance of the magnetic layer is improved and the occurrence or growth of a defect is prevented. As a result, separation of the magnetic powder from the nonmagnetic substrate can be prevented and a magnetic recording medium having excellent durability can be obtained. It is preferable to polymerize the triazine thiol compound with the resin containing the epoxy group.</abstract><oa>free_for_read</oa></addata></record> |
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| language | eng |
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| subjects | ADHESIVES CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS CORRECTING FLUIDS DYES FILLING PASTES INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER INKS METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING PHYSICS POLISHES USE OF MATERIALS THEREFOR WOODSTAINS |
| title | MAGNETIC RECORDING MEDIUM |
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