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公开(公告)号:FI922786A0
公开(公告)日:1992-06-16
申请号:FI922786
申请日:1992-06-16
Applicant: HOECHST AG
Inventor: HAUBS MICHAEL , PRASS WERNER
Abstract: PCT No. PCT/EP90/02021 Sec. 371 Date Jul. 2, 1992 Sec. 102(e) Date Jul. 2, 1992 PCT Filed Nov. 26, 1990 PCT Pub. No. WO91/09669 PCT Pub. Date Jul. 11, 1991.Composite membrane, process for its production and its use A composite membrane for gas separation having a three-layer structure, constructed from A) a supporting membrane layer made of porous polymer, B) a nonporous, gas-permeable intermediate layer, C) a permselective layer of regularly arranged organic molecules having a layer thickness of 3 to 100 nm, the layers (A) and (C) enclosing the intermediate layer (B), wherein the permselective layer (C) is constructed from regularly arranged amphiphilic molecules which contain one or two alkyl chains each having 7 to 25 carbon atoms per polar hydrophilic group.
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公开(公告)号:AU617880B2
公开(公告)日:1991-12-05
申请号:AU4286089
申请日:1989-10-12
Applicant: HOECHST AG
Inventor: PRASS WERNER , ZERTANI RUDOLPH , LINGNAU JUERGEN , HANOLD NORBERT , MEIER HERBERT
IPC: G03F7/028 , C08F28/00 , C08F28/06 , C08L41/00 , G03C1/52 , G03F7/038 , C08F220/28 , C08F228/06 , C08L39/04 , G03C1/72 , G03F7/02
Abstract: A negative-working radiation-sensitive mixture comprising a binder and a polymer containing 1,2,3-thiadiazole groups is disclosed. The binder is a polyfunctional compound having functional groups that react with ketene. The polymer is a compound obtained by polymerization of a compound of the general formula I (I) in which R is a polymerizable group. If the polymer is a copolymer containing comonomers having functional groups capable of reacting with ketene, the binder can be omitted. The negative-working radiation-sensitive mixture is particularly suitable for UV, electron beam and X-ray lithography.
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公开(公告)号:CA2072016A1
公开(公告)日:1991-06-24
申请号:CA2072016
申请日:1990-11-26
Applicant: HOECHST AG
Inventor: HAUBS MICHAEL , PRASS WERNER
Abstract: of the disclosure HOE 89/F 406K Composite membrane, process for its production and its use A composite membrane for gas separation having a threelayer structure, constructed from A) a supporting membrane layer made of porous polymer, B) a nonporous, gas-permeable intermediate layer, C) a permselective layer of regularly arranged organic molecules having a layer thickness of 3 to 100 nm, the layers (A) and (C) enclosinq the intermediate layer (B), wherein the permselective layer (C) is constructed from regularly arranged amphiphilic molecules which contain one or two alkyl chains each having 7 to 25 carbon atoms per polar hydrophilic group.
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公开(公告)号:DK0787112T3
公开(公告)日:1998-11-16
申请号:DK95935441
申请日:1995-10-10
Applicant: HOECHST RES & TECH GMBH & CO , CABOT CORP , HOECHST AG
Inventor: ZIMMERMANN ANDREAS , GEISS GERHARD , M LLER HANS-KARL , PRASS WERNER , SCHEUNEMANN UDE
IPC: C08J3/12 , C01B33/14 , C01B33/145 , C01B33/16 , C04B14/06 , C04B20/00 , C04B30/02 , C04B38/08 , C08J3/20 , C08K3/36 , C08L101/00 , C09J1/00 , C09J11/04
Abstract: PCT No. PCT/EP95/03989 Sec. 371 Date Apr. 17, 1997 Sec. 102(e) Date Apr. 17, 1997 PCT Filed Oct. 10, 1995 PCT Pub. No. WO96/12683 PCT Pub. Date May 2, 1996The invention relates to a composition comprising between 30 and 95% by volume of aerogel particles and at least one aqueous binder, where the particle diameter of the aerogel particles is less than 0.5 mm and the aerogel particles preferably have hydrophobic surface groups, a process for the preparation thereof, and the use thereof.
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15.
公开(公告)号:CA2203101A1
公开(公告)日:1996-05-02
申请号:CA2203101
申请日:1995-10-10
Applicant: HOECHST AG
Inventor: GEISS GERHARD , MUELLER HANS-KARL , ZIMMERMANN ANDREAS , PRASS WERNER , SCHEUNEMANN UDE
IPC: C08J3/12 , C01B33/14 , C01B33/145 , C01B33/16 , C04B14/06 , C04B20/00 , C04B30/02 , C04B38/08 , C08J3/20 , C08K3/36 , C08L101/00 , C09J1/00 , C09J11/04
Abstract: The invention concerns a composition containing 30-95 % by volume aerogel particles and at least one aqueous binder. The aerogel particles are less than 0.5 mm in diameter and are preferably provided with hydrophobic surface groups. The invention also concerns a method of producing said particles and the use thereof.
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公开(公告)号:DK0506701T3
公开(公告)日:1995-07-17
申请号:DK91900235
申请日:1990-11-26
Applicant: HOECHST AG
Inventor: PRASS WERNER , HAUBS MICHAEL
Abstract: PCT No. PCT/EP90/02021 Sec. 371 Date Jul. 2, 1992 Sec. 102(e) Date Jul. 2, 1992 PCT Filed Nov. 26, 1990 PCT Pub. No. WO91/09669 PCT Pub. Date Jul. 11, 1991.Composite membrane, process for its production and its use A composite membrane for gas separation having a three-layer structure, constructed from A) a supporting membrane layer made of porous polymer, B) a nonporous, gas-permeable intermediate layer, C) a permselective layer of regularly arranged organic molecules having a layer thickness of 3 to 100 nm, the layers (A) and (C) enclosing the intermediate layer (B), wherein the permselective layer (C) is constructed from regularly arranged amphiphilic molecules which contain one or two alkyl chains each having 7 to 25 carbon atoms per polar hydrophilic group.
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公开(公告)号:FI933628A
公开(公告)日:1994-02-20
申请号:FI933628
申请日:1993-08-17
Applicant: HOECHST AG
Inventor: APPEL GUNTHER , BAUER JACQUELINE , HICKEL WERNER , LUPO DONALD , PRASS WERNER , SCHEUNEMANN UDE
Abstract: For the continuous production of an ultra-thin, ordered layer of amphiphilic molecules on the surface of a polar liquid, an aligned flow of the polar liquid is generated in a channel, which polar liquid contains the amphiphilic molecules, dissolved or undissolved, on the surface in spread form. In the channel, a channel section with relatively high flow rate at the surface is provided, which section has a ramp which is arranged on the channel bottom and over which the polar liquid flows. Following this there is a channel section with a relatively low flow rate at the surface, in which channel section the flow is dammed at an obstruction with the liquid level constant over time, so that an ultra-thin, ordered layer of amphiphilic molecules continuously forms, as a result of flow compression, at the polar liquid/air phase boundary in these channel sections. The ramp over which the liquid flows is arranged so as to be movable.
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公开(公告)号:CA1321065C
公开(公告)日:1993-08-10
申请号:CA590020
申请日:1989-02-03
Applicant: HOECHST AG
Inventor: LASCHEWSKY ANDRE , RINGSDORF HELMUT , INTERTHAL WERNER , LUPO DONALD , PRASS WERNER , SCHEUNEMANN UDE
Abstract: 23221-4583 of the disclosure Film comprising at least one unimolecular layer A film for use in nonlinear optics comprises at least one Langmuir-Blodgett layer, the layer containing or comprising a dye of the formula in which R1 denotes a long-chain alkoxy, acyloxy, alkylamino or acylamino group. In particular when the film contains alternating layers of unsaturated amphiphilic compounds, it produces a stable multilayer having good nonlinear optical properties and is suitable, for example, for electrooptical switches, diode laser frequency amplifiers or optical parametric amplifiers. Besides the dye indicated, the unimolecular layer can additionally contain at least one second amphiphilic compound. In this case, the unimolecular layer comprises amphiphilic compounds.
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19.
公开(公告)号:CA2084540A1
公开(公告)日:1993-06-08
申请号:CA2084540
申请日:1992-12-04
Applicant: HOECHST AG
Inventor: ZIMMERMANN ANDREAS , BARGON JOACHIM , STEHLIN THOMAS , PRASS WERNER , GROH WERNER
Abstract: HOE 91/F 380 Measuring system for the determination of the concentration of inorganic and organic compounds in a sample Measuring system for the determination of the concentrations of inorganic and organic compounds in a sample, having a sensor to be brought into contact with the sample, which sensor contains an optical fluorescent indicator which, upon excitation via an excitation light source, fluoresces as a function of the present concentration of the inorganic or organic compound to be detected. The measuring system is configured for measuring and evaluating the incoming radiation and the reemitted fluorescent light. The measuring system comprises a sensor element to be brought into contact with the sample, said sensor element being composed of a polymer matrix which is prepared from a) a matrix component derived from one or more units of the formula I in which (I) R1- is hydrogen, deuterium or methyl; R2- and R3-, independently of one another, are hydrogen, deuterium or methyl, and the degree of polymerization n is an integer in the range from 80 to 2500, preferably from 200 to 2000; - - HOE 91/F 380 b) a dye component which is immobilized covalently on the acyl chloride groups of the matrix component, and c) one or more swelling components which are bound covalently at the remaining free acyl chloride groups of the matrix component.
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公开(公告)号:CA2061325A1
公开(公告)日:1992-09-16
申请号:CA2061325
申请日:1992-03-13
Applicant: HOECHST AG
Inventor: HICKEL WERNER , LUPO DONALD , PRASS WERNER , SCHEUNEMANN UDE , WILHARM PETER
IPC: B05D1/20 , C08F20/52 , C08F30/08 , C08F220/10 , C08F220/52 , C08F230/08 , B32B27/06 , G02B6/16 , G02B5/20
Abstract: HOE 91/F 075 of the disclosure: Amphiphilic polymers containing silane units and film comprising at least one monomolecular layer produced therefrom Amphiphilic copolymers containing silanyl groups and composed of derivatives of acrylic and/or methacrylic acid are described, which copolymers are suitable for the production of layer elements by the Langmuir-Blodgett method. Layer elements of this type can be used for optical waveguide systems and for the production of optical filters and for lithographic purposes.
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