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公开(公告)号：DE58906508D1
公开(公告)日：1994-02-10
申请号：DE58906508
申请日：1989-01-26
Applicant: BASF AG
Inventor： STEININGER HELMUT DR
IPC: G11B11/105 , G11B13/04 , G11B11/10
Abstract: Process for the production of a planar, multilayered magneto- optical recording material having (A) an optically transparent dimensionally stable substrate, (B) a thermally alterable recording layer of an amorphous lanthanide/transition metal alloy and - at least on that side of the recording layer (B) which faces away from the substrate (A) - having (C) a single-stratum or multistratum layer containing carbides, nitrides and/or oxides, in which the layer (C) is produced on one or both sides of the recording layer (B) by (I) applying a 30 to 500 nm thick layer (C1) of (C11) two or more components which (C12) are present in three or more separate element and element carbide, nitride and oxide strata, each consisting of one or more of the components, (C13) the component(s) of the element stratum or strata being selected from the group comprising the elements B, Al, Ga, In, Si, Ge, Sn, Pb, Sb, Bi, Mg, Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Fe, Co, Zn, Cd, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu and Th and (C14) the component(s) of the element carbide, nitride and oxide stratum or strata being selected from the group comprising the carbides, nitrides and oxides of these elements (C13) and (C15) directly adjacent strata of carbides, nitrides and/or oxides (C14) having different compositions, (C16) at least two of the strata consisting of carbides, nitrides and/or oxides (C14) being separated from one another by at least one 0.1 to 30 nm thick stratum consisting of at least one of the elements (C13) and (C17) the stratum directly adjacent to the recording layer (B) or the stratum facing said layer always consisting of carbides, nitrides and/or oxides (C14), and by (II) reacting the stratum or strata of the layer (C1) which consists or consist of at least one of the elements (C13) with oxygen, nitrogen and/or carbon, after which the recording layer (B) is magnetised at right angles to its surface.
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公开(公告)号：DE3877257D1
公开(公告)日：1993-02-18
申请号：DE3877257
申请日：1988-05-26
Applicant: BASF AG
Inventor： KOESTER EBERHARD DR , KUPPELMAIER HARALD , STEININGER HELMUT DR , WIEGEMANN HANS-BERTRAM DR
Abstract: A flat, multilayer laser optical recording material comprising a dimensionally stable support and a thin, thermally modifiable recording layer consisting of Au and at least one metal chosen from Ru, Rh, Pd, Ag, Cu, Re, Os, Ir and Pt, the recording layer satisfying the following conditions: (a) it completely covers the underlying surface; (b) it contains 15-85 wt% Au w.r.t. the total layer, the Au being in predominantly non-alloyed form in a separate phase; (c) it exhibits a surface granularity with an ave. grain size of 10-200 nm; (d) the ave. layer depth d=5-300 nm where d=(dmin + dmax)/2 in which dmin= the ave. thickness of 10 fo the thinnest positions and dmax = the ave. thickness of 10 of the thickest positions on the recording layer; and (e) it is formed by at least 2-stage coating of the surface alernately with Au and with at least one of the other metals.
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公开(公告)号：DE3803014A1
公开(公告)日：1989-08-10
申请号：DE3803014
申请日：1988-02-02
Applicant: BASF AG
Inventor： STEININGER HELMUT DR
IPC: C23C14/06 , C23C14/34 , G02B6/122 , G11B7/243 , G11B7/253 , G11B7/2533 , G11B7/254 , G11B7/2548 , G11B7/257 , G11B7/2578 , G11B11/105 , H01L21/318
Abstract: In a process for producing a thin X-ray-amorphous aluminium nitride or aluminium siliconitride layer on a surface by reactive cathodic sputtering or reactive magnetron-cathodic sputtering of aluminium or of aluminium and silicon in vacuo in a process gas atmosphere containing a rare gas and nitrogen and by depositing the particular nitride layer from the gas phase, (a) xenon, neon or krypton as the rare gas or alternatively (b) a mixture of xenon with neon and/or krypton or of neon with krypton is used, (c) the volume ratio of the rare gas (b) or of the rare gas mixture (b) to the nitrogen being 2:1 to 10:1.
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公开(公告)号：DE58907259D1
公开(公告)日：1994-04-28
申请号：DE58907259
申请日：1989-01-26
Applicant: BASF AG
Inventor： STEININGER HELMUT DR
IPC: G11B11/10 , G11B11/105 , G11B13/04
Abstract: The invention relates to a novel sheet-like, multilayer magneto- optical recording material having (A) an optically transparent dimensionally stable substrate and having (B) a thermally alterable layer which is composed of an amorphous lanthanide/transition metal alloy and - at least on the side facing away from the substrate (A) - has a surface zone which is up to 20 nm thick and contains carbon, oxygen and/or nitrogen, and a process for the production of this recording material.
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公开(公告)号：DE3884505D1
公开(公告)日：1993-11-04
申请号：DE3884505
申请日：1988-07-21
Applicant: BASF AG
Inventor： STEININGER HELMUT DR , BINDER HORST
IPC: B41M5/26 , G11B7/24 , G11B7/241 , G11B7/244 , G11B7/246 , G11B7/253 , G11B7/2534 , G11B7/257 , G11B7/2578 , G11B7/26
Abstract: A recording material which has… a) a dimensionally stable, optically transparent substrate which is composed of plastics and has a structured surface,… b) an intermediate layer which is present thereon, is insoluble in organic solvents and acts as a diffusion barrier with respect to the latter and, on said intermediate layer,… c) an amorphous, thermally alterable recording layer which can be produced by application from a solution and drying and contains dyes, and the intermediate layer (b) of which… b1) is 5 to 95 nm thick and, based in each case on (b), consists of… b2) 88 to 99.5% by weight of oxides and/or hydrated oxides of one or more of the elements from the group consisting of titanium, zirconium, hafnium, thorium, vanadium, niobium, tantalum, tungsten, aluminium, gallium, indium, silicon, germanium and tin and of… b3) 0.5 to 12% by weight of hydrocarbon radicals, and… b4) can be produced by dissolving an alkoxide or several alkoxides of one or more of the above-mentioned elements in a polar liquid medium essentially containing C1- to C6-alkanols, applying this solution to the surface of the substrate (a) and heating the moist layer obtained in this manner in the presence of water at 50 to 120 DEG C for 5 minutes to 2 hours, and a process for the production of the recording material.
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Patent Agency Ranking
公开(公告)号：DE3925050A1
公开(公告)日：1991-01-31
申请号：DE3925050
申请日：1989-07-28
Applicant: BASF AG
Inventor： STEININGER HELMUT DR
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公开(公告)号：DE3803013A1
公开(公告)日：1989-08-10
申请号：DE3803013
申请日：1988-02-02
Applicant: BASF AG
Inventor： STEININGER HELMUT DR
IPC: G11B11/10 , G11B11/105 , G11B13/04
Abstract: Process for the production of a planar, multilayered magneto- optical recording material having (A) an optically transparent dimensionally stable substrate, (B) a thermally alterable recording layer of an amorphous lanthanide/transition metal alloy and - at least on that side of the recording layer (B) which faces away from the substrate (A) - having (C) a single-stratum or multistratum layer containing carbides, nitrides and/or oxides, in which the layer (C) is produced on one or both sides of the recording layer (B) by (I) applying a 30 to 500 nm thick layer (C1) of (C11) two or more components which (C12) are present in three or more separate element and element carbide, nitride and oxide strata, each consisting of one or more of the components, (C13) the component(s) of the element stratum or strata being selected from the group comprising the elements B, Al, Ga, In, Si, Ge, Sn, Pb, Sb, Bi, Mg, Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Fe, Co, Zn, Cd, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu and Th and (C14) the component(s) of the element carbide, nitride and oxide stratum or strata being selected from the group comprising the carbides, nitrides and oxides of these elements (C13) and (C15) directly adjacent strata of carbides, nitrides and/or oxides (C14) having different compositions, (C16) at least two of the strata consisting of carbides, nitrides and/or oxides (C14) being separated from one another by at least one 0.1 to 30 nm thick stratum consisting of at least one of the elements (C13) and (C17) the stratum directly adjacent to the recording layer (B) or the stratum facing said layer always consisting of carbides, nitrides and/or oxides (C14), and by (II) reacting the stratum or strata of the layer (C1) which consists or consist of at least one of the elements (C13) with oxygen, nitrogen and/or carbon, after which the recording layer (B) is magnetised at right angles to its surface.
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公开(公告)号：DE3803000A1
公开(公告)日：1989-08-10
申请号：DE3803000
申请日：1988-02-02
Applicant: BASF AG
Inventor： STEININGER HELMUT DR
IPC: G11B11/10 , G11B11/105 , G11B13/04
Abstract: The invention relates to a novel sheet-like, multilayer magneto- optical recording material having (A) an optically transparent dimensionally stable substrate and having (B) a thermally alterable layer which is composed of an amorphous lanthanide/transition metal alloy and - at least on the side facing away from the substrate (A) - has a surface zone which is up to 20 nm thick and contains carbon, oxygen and/or nitrogen, and a process for the production of this recording material.
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公开(公告)号：DE3725134A1
公开(公告)日：1989-02-09
申请号：DE3725134
申请日：1987-07-29
Applicant: BASF AG
Inventor： STEININGER HELMUT DR , BINDER HORST
IPC: B41M5/26 , G11B7/24 , G11B7/241 , G11B7/244 , G11B7/246 , G11B7/253 , G11B7/2534 , G11B7/257 , G11B7/2578 , G11B7/26
Abstract: A recording material which has… a) a dimensionally stable, optically transparent substrate which is composed of plastics and has a structured surface,… b) an intermediate layer which is present thereon, is insoluble in organic solvents and acts as a diffusion barrier with respect to the latter and, on said intermediate layer,… c) an amorphous, thermally alterable recording layer which can be produced by application from a solution and drying and contains dyes, and the intermediate layer (b) of which… b1) is 5 to 95 nm thick and, based in each case on (b), consists of… b2) 88 to 99.5% by weight of oxides and/or hydrated oxides of one or more of the elements from the group consisting of titanium, zirconium, hafnium, thorium, vanadium, niobium, tantalum, tungsten, aluminium, gallium, indium, silicon, germanium and tin and of… b3) 0.5 to 12% by weight of hydrocarbon radicals, and… b4) can be produced by dissolving an alkoxide or several alkoxides of one or more of the above-mentioned elements in a polar liquid medium essentially containing C1- to C6-alkanols, applying this solution to the surface of the substrate (a) and heating the moist layer obtained in this manner in the presence of water at 50 to 120 DEG C for 5 minutes to 2 hours, and a process for the production of the recording material.
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公开(公告)号：DE3716736A1
公开(公告)日：1988-12-01
申请号：DE3716736
申请日：1987-05-19
Applicant: BASF AG
Inventor： STEININGER HELMUT DR
IPC: G11B11/10 , G11B5/72 , G11B11/105
Abstract: The recording medium has an optically transparent substrate, a thermally alterable recording layer consisting of an amorphous lanthanide transition metal alloy and, on that side of this recording layer which faces away from the substrate, an anticorrosion layer containing carbides, nitrides and/or oxides, wherein the anticorrosion layer… a) is 30 to 250 nm thick and… b) consists of two or more components which… c) are present in four or more separate layers, each comprising one of the components, wherein… d) at least one of the components is selected from the group consisting of the elements boron, aluminium, silicon, titanium, zirconium, hafnium, vanadium, niobium, tantalum, chromium, molybdenum and tungsten and… e) at least one other of the components is selected from the group consisting of the carbides, nitrides and oxides of these elements (d) and wherein… f) directly adjacent layers always consist of components which differ from one another.
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