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公开(公告)号：JPH10101758A
公开(公告)日：1998-04-21
申请号：JP17844997
申请日：1997-07-03
Applicant: BASF AG
Inventor： WEINGART FRANZ DR , BURKHARDT UWE , BAUER STEPHAN DR , REICH WOLFGANG DR , KOHL ALBERT
Abstract: PROBLEM TO BE SOLVED: To obtain a polyurethane useful as a material for coating by reacting a specified polyhydric alcohol with an isocyanate. SOLUTION: This polyurethane which is suitable as a material or component of a coating material is obtained by reacting a prepolymer (a) obtained by reacting a polyhydric alcohol having more than one isocyanate-reactive hydroxyl group per molecule with an aromatic or aliphatic polyisocyanate in a ratio of the number of the isocyanatte-reactive hydroxyl groups to the number of the isocyanate groups of below 1 with an isocyanate selected from the group consisting of aromatic or aliphatic polyisocyanates (b) and a chain extender (2) obtained by reacting a polyhydric alcohol (a) with a compound (b) having an epoxy functional group and additionally an alcohol-reactive functional group, a reaction product (b) of the reaction product with an α,β-olefinically unsaturated carboxylic acid, and reacting this reaction product with an amine having a reactive prim. amino group.
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公开(公告)号：DE19906589A1
公开(公告)日：2000-08-24
申请号：DE19906589
申请日：1999-02-17
Applicant: BASF AG
Inventor： SCHUHMACHER PETER , SCHNEIDER NORBERT , RICHTER VOLKER , BEST WOLFGANG , KOHL ALBERT , BLASCHKA PETER , SIERAKOWSKI CLAUDIA
IPC: B32B9/00 , C09B67/00 , C09B67/04 , C09B67/20 , C09D5/29 , C09D5/36 , C09D201/00 , C09J201/00 , C09K19/00 , C09D17/00
Abstract: An adhesive layer (B) forms the interlayer between similar or different cholesteric layers (A1) and (A2) in a cholesteric laminate material with the layer sequence A1/B/A2. Independent claims are also included for: (i) a process for the production of cholesteric laminate material by: (a) coating a base with a first coating material which is hardened to form layer (A1); (b) coating (A1) with a second material containing heat- and/or pressure-activated adhesive(s) to form a laminate A1/B with adhesive layer (B); (c) coating another base with a third coating material which is hardened to form layer (A2); (d) laminating (A2) with (A1/B) under elevated pressure and/or temperature to form laminate A1/B/A2; (e) stripping off the second base; and optionally (f) stripping off the first base; (ii) a process for the production of multilayer cholesteric flake pigments with the layer sequence A1/B/A2 by milling the above material to a particle size of up to 200 microns; (iii) cholesteric flake pigments obtained by this process; and (iv) compositions and coating materials containing these multilayer pigments.
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公开(公告)号：DE4142635A1
公开(公告)日：1993-06-24
申请号：DE4142635
申请日：1991-12-21
Applicant: BASF AG
Inventor： SCHNEIDER NORBERT , LEHNER AUGUST , KLEIN URSULA , LENZ WERNER DR , BALZ WERNER DR , KOHL ALBERT , BETTINGER GUENTER
Abstract: A magnetic recording material is produced by spreading a dispersion of anisotropic material particles together with other particles in a fluid solution over the surface of a corner. The solution consists of a polymer binding agent in an organic fluid. The material is passed through a magnetic field to orientate the magnetic particles. The mixture has carbon in a water repellent polysilicic acid in 0.3 to 5 percent by weight. ADVANTAGE - Avoids high wear resistant over wide temperature range.
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公开(公告)号：DE3570543D1
公开(公告)日：1989-06-29
申请号：DE3570543
申请日：1985-07-22
Applicant: BASF AG
Inventor： LEHNER AUGUST , BALZ WERNER DR , LENZ WERNER DR , KOHL ALBERT , HEIL GUENTER DR
IPC: C09D5/23 , C09D175/04 , C09D175/06 , C09D175/08 , C09D175/14 , G11B5/702 , G11B5/842
Abstract: Layer-type magnetic recording media are produced by dispersing a finely divided magnetically anisotropic material in a binder which consists of not less than 40% of a radiation-curable aqueous binder dispersion, applying the dispersion onto a non-magnetic base, orienting the magnetically anisotropic material and drying and crosslinking the applied layer by means of UV or high-energy electron radiation.
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公开(公告)号：DE3707440A1
公开(公告)日：1988-09-15
申请号：DE3707440
申请日：1987-03-07
Applicant: BASF AG
Inventor： LEHNER AUGUST , KOHL ALBERT , BOBRICH MICHAEL DR , ROLLER HERMANN , RICHTER PETER DR , LENZ WERNER DR , KREITNER LUDWIG DR , RUDOLF PETER DR
IPC: C08G18/12 , C09D5/23 , C09D175/00 , C09D175/04 , G11B5/702 , C09D3/72
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Patent Agency Ranking
公开(公告)号：DE3375848D1
公开(公告)日：1988-04-07
申请号：DE3375848
申请日：1983-12-20
Applicant: BASF AG
Inventor： KOHL ALBERT , BALZ WERNER DR , MELZER MILENA , SCHNEIDER NORBERT , KOESTER EBERHARD DR , LEHNER AUGUST
IPC: C08F20/26 , C08F220/26 , C09D5/23 , C09D133/04 , C09D133/08 , C09D175/00 , C09D175/04 , G11B5/70 , G11B5/702
Abstract: Magnetic recording media are produced by dispersing finely divided anisotropic magnetic material and conventional additives in a solution of a polymeric binder in an organic solvent, or in an aqueous dispersion of a polymeric binder, adding a polymer based on hydrophilic ethylenically unsaturated compounds to the magnetic dispersion, applying a layer of the dispersion to a non-magnetizable base, orienting the anisotropic magnetic material in a magentic field and drying the applied layer.
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公开(公告)号：DE3372554D1
公开(公告)日：1987-08-20
申请号：DE3372554
申请日：1983-08-08
Applicant: BASF AG
Inventor： KOHL ALBERT , SCHNEIDER NORBERT , LEY GREGOR DR , BALZ WERNER DR , MELZER MILENA , JAKUSCH HELMUT DR
IPC: G11B5/702 , C09D5/23 , C09D175/00 , C09D175/04 , G11B5/70 , G11B5/84 , G11B5/842
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公开(公告)号：DE3461231D1
公开(公告)日：1986-12-11
申请号：DE3461231
申请日：1984-12-14
Applicant: BASF AG
Inventor： LEHNER AUGUST DIPL ING , KOHL ALBERT , ROLLER HERMANN , BALZ WERNER DR , KOESTER EBERHARD DR , SOMMERMANN FRIEDRICH DR
IPC: C09D5/23 , C09D7/12 , C10M105/24 , C10M105/68 , C10N10/04 , C10N40/18 , G11B5/71
Abstract: Magnetic recording media consisting of a non-magnetic base and, applied thereto, one or more firmly adhering magnetizable layers based on magnetic material finely dispersed in a polymeric binder, at least one lubricant and other conventional additives, wherein the lubricant used is a mixture of zinc stearate which has been rendered hydrophilic and stearylamide.
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公开(公告)号：DE3165303D1
公开(公告)日：1984-09-13
申请号：DE3165303
申请日：1981-01-28
Applicant: BASF AG
Inventor： LEHNER AUGUST , HARTMANN HEINRICH DR , BACHMANN RUDOLF DR , BALZ WERNER DR , KOHL ALBERT
Abstract: Magnetic recording media comprising a non-magnetic base and, applied thereto, one or more magnetizable layers based on an anisotropic magnetic material finely dispersed in an organic binder containing an ionomeric polyurethane elastomer, wherein the binder used is a substantially aqueous polyurethane dispersion prepared from a polyurethane solution which has been obtained by reacting a polyisocyanate with an organic polyhydroxy compound in the presence of an organic solvent that is inert to isocyanate groups.
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公开(公告)号：DE3248327A1
公开(公告)日：1984-06-28
申请号：DE3248327
申请日：1982-12-28
Applicant: BASF AG
Inventor： KOHL ALBERT , BALZ WERNER DR , MELZER MILENA , SCHNEIDER NORBERT , KOESTER EBERHARD DR , LEHNER AUGUST
IPC: C08F20/26 , C08F220/26 , C09D5/23 , C09D133/04 , C09D133/08 , C09D175/00 , C09D175/04 , G11B5/70 , G11B5/702 , G11B5/68 , G11B5/84 , B05D5/12 , C09D3/80
Abstract: Magnetic recording media are produced by dispersing finely divided anisotropic magnetic material and conventional additives in a solution of a polymeric binder in an organic solvent, or in an aqueous dispersion of a polymeric binder, adding a polymer based on hydrophilic ethylenically unsaturated compounds to the magnetic dispersion, applying a layer of the dispersion to a non-magnetizable base, orienting the anisotropic magnetic material in a magentic field and drying the applied layer.
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