JPH0313648B

The present invention relates to a magnetic storage medium consisting of a non-magnetic layer support and, applied thereto, a binder-containing magnetic layer, the binder consisting of from 25 to 100% of a thermoplastic polyurethane substantially free from reactive terminal groups obtained by reacti...

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Hauptverfasser:	ROBERUTO KOORAA, KARURUKURISUCHAN SHIRUFUARUTO, BERUNTO KUIRINGU, HAINRITSUHI KOOBAA, BURUKUHARUTO NITSUPE, BARUTAA METSUKERU
Format:	Patent
Sprache:	eng
Schlagworte:	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
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creator	ROBERUTO KOORAA KARURUKURISUCHAN SHIRUFUARUTO BERUNTO KUIRINGU HAINRITSUHI KOOBAA BURUKUHARUTO NITSUPE BARUTAA METSUKERU
description	The present invention relates to a magnetic storage medium consisting of a non-magnetic layer support and, applied thereto, a binder-containing magnetic layer, the binder consisting of from 25 to 100% of a thermoplastic polyurethane substantially free from reactive terminal groups obtained by reacting a linear polyester of at least one dicarboxylic acid containing from 2 to 8 carbon atoms and/or hydroxy carboxylic acid containing from 4 to 6 carbon atoms and at least one glycol containing from 2 to 6 carbon atoms, the polyester having a molecular weight of from 1200 to 6000, at least one diisocyanate and a mixture of at least two glycols containing from 2 to 20 carbon atoms, the molar fraction of the individual components not exceeding 0.8. The polyurethane has a hardness of from 80 to 100 Shore A, a tensile strength of from 30 to 75 MPa and a breaking elongation of from 320 to 520%.
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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	JPH0313648B
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