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    LAYER ELEMENT AND PROCESSES FOR ITS PRODUCTION
    21.
    发明专利
    LAYER ELEMENT AND PROCESSES FOR ITS PRODUCTION 未知

    公开(公告)号：CA2031786A1

    公开(公告)日：1991-06-10

    申请号：CA2031786

    申请日：1990-12-07

    Applicant: HOECHST AG

    Inventor： LUPO DONALD ,  PRASS WERNER ,  SCHEUNEMANN UDE

    IPC: B05D1/20 ,  B32B9/00 ,  C07D213/30 ,  C07D213/38 ,  C07D213/77 ,  G02F1/361 ,  B05D5/06 ,  H01S3/108 ,  B05D5/12 ,  G02F1/35

    Abstract: HOE 89/F 390 Layer element and a process for its preparation A layer element usable for NLO purposes can be prepared by the Langmuir-Blodgett technique. It comprises a solid substrate and at least two thin layers of regular structure applied thereupon, which layers contain at least one amphiphilic compound of the formula (I) Z- (I) in which R1 is H(CH2)nO, H(CH2)nS or , R2 and R3, independently of one another, are H, H(CH2)pO-, H(CH2)pS- or , X is a single bond, -CH=CH-, -N=N-, -CH=N-NH-, or -CH=N, Y is a divalent radical O, NH or S, R4 is -H, -CO-(CH2)tH, -(CH2)t-H or YR4 is -COO-, -CONH2, H, OH, SO2(CH2)uH, -COz(CH2)tH or -CO2(CH2)vOH, Z is at least in part a polyanion, 1 is a number from 1-10, n is a number from 10-25, m is a number from 0-25, p is a number from 10-25, q is a number from 10-25, r is a number from 0-25, t is a number from 0-25, u is a number from 1-20, and v is a number from 2-10.

    22.
    发明专利
    未知

    公开(公告)号：DK655589D0

    公开(公告)日：1989-12-21

    申请号：DK655589

    申请日：1989-12-21

    Applicant: HOECHST AG

    Inventor： LUPO DONALD ,  PRASS WERNER ,  SCHEUNEMANN UDE

    IPC: B05D1/20 ,  B32B27/30 ,  C07C233/05 ,  C07C233/80 ,  C08F20/34 ,  C08F20/36 ,  C08F20/52 ,  C08F20/60 ,  C08J5/18 ,  C07C235/74 ,  B32B27/06

    Abstract: Amphiphilic monomers with mixed-chain structures of the formula in which Y denotes -O- or -NH- X denotes a group of the formula -(CH2)n- or -(CH2-O-CH2)n- l denotes an integer from 0 to 10, n denotes an integer from 1 to 10, R1 denotes hydrogen, methyl, chlorine, cyano, fluorine or bromine, R2 denotes C1-C24-alkyl or C1-C24-fluoroalkyl and R3 denotes C8-C24-alkyl or C8-C24-fluoralkyl, with the proviso that the groups R2 and R3 contain a different number of carbon atoms. The monomers are polymerized on their own or together with other comonomers. The polymers obtained are suitable for the preparation of ultra-thin layers on a suitable layer support.

    23.
    发明专利
    未知

    公开(公告)号：FI894182A0

    公开(公告)日：1989-09-05

    申请号：FI894182

    申请日：1989-09-05

    Applicant: HOECHST AG

    Inventor： CHERDRON HARALD ,  PRASS WERNER ,  SCHEUNEMANN UDE ,  LUPO DONALD

    IPC: B05D1/20 ,  B32B27/34 ,  C08G69/26 ,  C08J5/18 ,  C08G

    Abstract: Polyamides of the general formula [N(A)-X-N(B)-CO-Y-CO-]n are described, in which Y denotes a divalent group, X a divalent radical whose chain contains at least two carbon atoms, A and B independently of one another denote H or a C1 to C26 alkyl group and n denotes an integer greater than 4. The said polyamides contain at least one alkyl group of C6 to C26 per repeating unit. The groups X and/or Y contain at leat one CH2 group in the chain. The polyamides are prepared by reaction of a diamine of the formula NHA-X-NHB with an about equimolar amount of a reactive derivative of a dicarboxylic acid of the formula COOH-Y-COOH. The polyamides obtained can be used in order to prepare highly ordered monomolecular LB films on a support. For this purpose, the polyamide is dissolved in a volatile organic solvent which is immiscible with water and the solution is spread on the water/air interface. After evaporation of the solvent the layer is compressed and transferred to a solid support by the LB technique. The film is very stable and can be used to prepare optical waveguide systems, filters for optical purposes or protective layers.

    24.
    发明专利
    未知

    公开(公告)号：DE69409009T2

    公开(公告)日：1998-10-01

    申请号：DE69409009

    申请日：1994-05-31

    Applicant: HOECHST AG

    Inventor： ROTH CHRISTOPH ,  LIU YUAN ,  PRASS WERNER ,  YAMAMOTO TETSU ,  MOTOSUGI KENJI

    IPC: G01N21/00 ,  G01J1/02 ,  G01N21/43 ,  G01V8/12

    Abstract: PCT No. PCT/EP94/01768 Sec. 371 Date Nov. 7, 1995 Sec. 102(e) Date Nov. 7, 1995 PCT Filed May 31, 1994 PCT Pub. No. WO94/28395 PCT Pub. Date Dec. 8, 1994Disclosed and claimed is an optical sensor for the detection of chemical species. The optical sensor includes an optical waveguide having a guiding thin film. The thickness of the refrative index of the guiding thin film changes due to adsorption or absorption of the chemical species or reaction of the chemical species with the guiding thin film. The thickness of the guiding thin film is above the cutoff thickness in the presence of gaseous or liquid chemical species to be detected. And, the thickness of the guiding thin film is below the cutoff thickness in the absence of such chemical species.

    26.
    发明专利
    未知

    公开(公告)号：DE69409009D1

    公开(公告)日：1998-04-16

    申请号：DE69409009

    申请日：1994-05-31

    Applicant: HOECHST AG

    Inventor： ROTH CHRISTOPH ,  LIU YUAN ,  PRASS WERNER ,  YAMAMOTO TETSU ,  MOTOSUGI KENJI

    IPC: G01N21/00 ,  G01J1/02 ,  G01N21/43 ,  G01V8/12

    Abstract: PCT No. PCT/EP94/01768 Sec. 371 Date Nov. 7, 1995 Sec. 102(e) Date Nov. 7, 1995 PCT Filed May 31, 1994 PCT Pub. No. WO94/28395 PCT Pub. Date Dec. 8, 1994Disclosed and claimed is an optical sensor for the detection of chemical species. The optical sensor includes an optical waveguide having a guiding thin film. The thickness of the refrative index of the guiding thin film changes due to adsorption or absorption of the chemical species or reaction of the chemical species with the guiding thin film. The thickness of the guiding thin film is above the cutoff thickness in the presence of gaseous or liquid chemical species to be detected. And, the thickness of the guiding thin film is below the cutoff thickness in the absence of such chemical species.

    COMPOSITE DIAPHRAGM, PROCESS FOR PRODUCING IT AND ITS USE.
    27.
    发明专利
    COMPOSITE DIAPHRAGM, PROCESS FOR PRODUCING IT AND ITS USE. 未知

    公开(公告)号：GR3015739T3

    公开(公告)日：1995-07-31

    申请号：GR950400878

    申请日：1995-04-10

    Applicant: HOECHST AG

    Inventor： HAUBS MICHAEL ,  PRASS WERNER

    IPC: B01D53/22 ,  B01D69/12 ,  B32B7/02 ,  C01B13/02

    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.

    PROCESS AND DEVICE FOR PRODUCING ULTRATHIN LAYERS AND LAYER ELEMENTS
    29.
    发明专利
    PROCESS AND DEVICE FOR PRODUCING ULTRATHIN LAYERS AND LAYER ELEMENTS 未知

    公开(公告)号：CA2104316A1

    公开(公告)日：1994-02-20

    申请号：CA2104316

    申请日：1993-08-18

    Applicant: HOECHST AG

    Inventor： APPEL GUNTHER ,  BAUER JACQUELINE ,  HICKEL WERNER ,  LUPO DONALD ,  PRASS WERNER ,  SCHEUNEMANN UDE

    IPC: B05C3/09 ,  B05C3/132 ,  B05D1/20 ,  B05D1/18 ,  B05C3/02 ,  B05C11/11 ,  B05D1/36

    Abstract: of the disclosure: "Process and device for producing ultrathin layers and layer elements" In order to continuously produce an ultrathin, ordered layer of amphiphilic molecules on the surface of a polar liquid a directed flow of the polar liquid is produced in a duct which contains the amphiphilic molecules in dissolved or undissolved form on the surface in spread form. In the duct, a duct section having a relatively high flow rate on the surface and comprising a ramp which is arranged at the bottom of the duct and washed over by the polar liquid is provided. This is followed by a duct section having a relatively low flow rate on the surface, in which the flow is dammed up at an obstacle at a liquid level constant with time, so that an ultrathin, ordered layer of amphiphilic molecules is continuously formed in these duct sections at the polar liquid/air interface by compression of the flow. The washed over ramp is movable.

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