MAGNETIC RECORDING MEDIUM

PURPOSE:To improve the surface properties, adhesive property, traveling stability, etc., by forming a layer contg. urethane resin obtd. from polyol and isocyanate one of which has siloxane bond in the molecule on one side of the support opposite to the magnetic layer. CONSTITUTION:Urethane resin to...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	ASANO MASANARI, NISHIHARA SEIKI
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS COMPOSITIONS BASED THEREON CORRECTING FLUIDS DYES FILLING PASTES FUELS INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATINGCOMPOSITIONS INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER INKS LUBRICANTS LUBRICATING COMPOSITIONS MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING PEAT PETROLEUM, GAS OR COKE INDUSTRIES PHYSICS POLISHES TECHNICAL GASES CONTAINING CARBON MONOXIDE THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATINGINGREDIENTS IN A LUBRICATING COMPOSITION USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	PURPOSE:To improve the surface properties, adhesive property, traveling stability, etc., by forming a layer contg. urethane resin obtd. from polyol and isocyanate one of which has siloxane bond in the molecule on one side of the support opposite to the magnetic layer. CONSTITUTION:Urethane resin to be contained in a layer to be formed on one side of a support opposite to a magnetic layer is obtd. by substituting polyol or prepolymer having siloxane bonds for part of polyol or by using isocyanate having siloxane bond. The preferred thickness of the layer contg. the urethane resin is about 0.1-5mum, especially about 0.2-3mum. Low mol.wt. isocyanate or polyisocyanate may be added to the layer contg. the urethane resin to further facilitate the curing.