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公开(公告)号：DE59403315D1
公开(公告)日：1997-08-14
申请号：DE59403315
申请日：1994-03-01
Applicant: EMTEC MAGNETICS GMBH
Inventor： SCHLATTER MANFRED , GOLTZ ULRICH
Abstract: PCT No. PCT/EP94/00582 Sec. 371 Date Sep. 8, 1995 Sec. 102(e) Date Sep. 8, 1995 PCT Filed Mar. 1, 1994 PCT Pub. No. WO94/20955 PCT Pub. Date Sep. 15, 1994A method for reducing the abrasiveness of a coated product web is described, in which the product web is guided with its coated side over a deflection roller (2) and thereafter, in the course of a contact zone over guide rollers and deflection rollers or linear zones in between, is treated with itself, ie. once again with an abrasive surface. The abrasive action can be controlled in a specific manner through the relative speeds of the two surfaces, the tape tension and the length of the contact surface. Abraded particles present on the layer surface are subsequently removed by extraction.
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公开(公告)号：AU1440097A
公开(公告)日：1997-08-11
申请号：AU1440097
申请日：1997-01-09
Applicant: EMTEC MAGNETICS GMBH
Inventor： POGANIUCH PETER , SCHWAB EKKEHARD , DAUSCH WILMA M , KORNER REINHARD , WIMBERSKY WERNER
Abstract: PCT No. PCT/EP97/00062 Sec. 371 Date Jul. 13, 1998 Sec. 102(e) Date Jul. 13, 1998 PCT Filed Jan. 9, 1997 PCT Pub. No. WO97/26666 PCT Pub. Date Jul. 24, 1997The present invention relates to phosphorus-containing ferromagnetic pigments comprising, in particular, from 30 to 70% by volume of a core, said core comprising essentially iron and cobalt, and from 30 to 70% of a shell, said shell comprising essentially aluminum, phosporus, silicon, oxygen, and optionally magnesium and sodium; the invention further relates to a process for preparation of said pigments, their use in magnetic recording materials and magnetic recording materials which contain such pigments.
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公开(公告)号：DE29704833U1
公开(公告)日：1997-04-30
申请号：DE29704833
申请日：1997-03-17
Applicant: EMTEC MAGNETICS GMBH
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公开(公告)号：CA2215259A1
公开(公告)日：1996-10-03
申请号：CA2215259
申请日：1996-03-18
Applicant: EMTEC MAGNETICS GMBH
Inventor： HOFFMANN ERICH , HEILMANN PETER , SCHNEIDER NORBERT , LENZ WERNER , JACHOW HARALD , LEHNERT RUDI , OHLINGER MANFRED , JAKUSCH HELMUT , VEITCH RONALD JOHN , KOHL ALBERT , LEHNER AUGUST , KOCH VOLKER , HUEBNER WERNER
IPC: B32B27/20 , B32B33/00 , C01G37/02 , G11B5/708 , G11B5/73 , G11B5/733 , G11B5/738 , G11B5/78 , G11B5/704
Abstract: Described are tape-type magnetic recording media (I) including a non-magnetic substrate (III), at least one film applied to the substrate and, in at least one of these films, an inorganic acicular pigment (II) suitable for use as a supporting pigment, the ratio of the mean length to the mean diameter of the pigment (II) being at least 3 and the mean modulus of elasticity of the films being not less than 15 GPa in the longitudinal direction of the tape-type recording medium (I).
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公开(公告)号：DE10294967D2
公开(公告)日：2006-04-27
申请号：DE10294967
申请日：2002-09-18
Applicant: EMTEC MAGNETICS GMBH
Inventor： KRAUTER HEINRICH , WIND BEATE
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Patent Agency Ranking
公开(公告)号：NO20025178L
公开(公告)日：2003-04-30
申请号：NO20025178
申请日：2002-10-28
Applicant: EMTEC MAGNETICS GMBH
Inventor： KUHRT ANGELA , WEIGT WILFRIED , SCHOEBE VOLKER , ROTH CHRISTOPH , MEIER FRANK
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公开(公告)号：DE10152287A1
公开(公告)日：2003-04-30
申请号：DE10152287
申请日：2001-10-23
Applicant: EMTEC MAGNETICS GMBH
Inventor： SOEDER JENS , TRAUB HANSJOERG , KESKE JUERGEN , NEUMANN WOLFGANG , GENTER EDGAR
Abstract: Strip-like magnetic medium comprises a flexible support layer and a magnetic layer containing magnetic pigments in a polymer binder applied on the first side of the support layer. The magnetic layer has a thickness dM of at least 3 microns m and a specific surface porosity SFP of at least 80 cm /cm defined as the product of the specific nitrogen intake per volume element according to BET of the magnetic layer (in cm /cm ) and the layer thickness of the magnetic layer (in cm). Preferred Features: The SFP according to BET is at least 90 cm /cm . The support layer has a thickness of 15-30 microns m. The second side not supporting the magnetic layer has a roughness of 200-400 nm.
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公开(公告)号：DE4236299C2
公开(公告)日：2003-03-06
申请号：DE4236299
申请日：1992-10-28
Applicant: EMTEC MAGNETICS GMBH
Inventor： NENTWICH REINHOLD , LANGER LOTHAR , MITTMEYER JOACHIM
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公开(公告)号：BR0200836A
公开(公告)日：2003-01-21
申请号：BR0200836
申请日：2002-03-14
Applicant: EMTEC MAGNETICS GMBH
Inventor： SCHOLTYSIK BERND
IPC: G11B23/113 , B65H75/18 , G11B5/78 , G11B5/84 , G11B23/027 , G11B23/087 , G11B23/38 , G11B23/42 , G11B23/037
Abstract: Raw material roll (10) of strip or band type material, especially magnetic data recording tape, comprises a core (50) on which the recording tape (10.1) is rolled and a locking element (70) that is fixed to outer winding (10.2) of the roll. With the element attached, a free end (10.3) of the outer winding is formed between the label section (70.4) of the locking element. An Independent claim is made for a method for producing a raw material roll of magnetic recording tape.
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公开(公告)号：AU756079B2
公开(公告)日：2003-01-02
申请号：AU5506899
申请日：1999-07-24
Applicant: EMTEC MAGNETICS GMBH
Inventor： ILMER ANDREAS , LENZ WERNER , KRESS RIA , HEILMANN PETER , VEITCH RONALD , JAKUSCH HELMUT , HOFFMANN ERICH
Abstract: Digital recording procedures wherein the recording support is not exposed to an obliterating magnetic field before recording are known in recent times. Such recording supports must therefore have good rewrite capability. It has been found that said requirement is fulfilled by two-layered recording supports, wherein the top layer contains a metal or metal alloy powder and has a density of less than 0.3 mu m and wherein the bottom layer contains a magnetic pigment. The coercitive force of the bottom layer has at the most two thirds the coercitive force of the top layer and the remanent magnetization of the bottom layer is at least 32 kA/m.
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