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    2.
    发明专利
    未知

    公开(公告)号：BR9602539A

    公开(公告)日：1998-10-27

    申请号：BR9602539

    申请日：1996-05-30

    Applicant: HOECHST AG

    Inventor： SCHLOGL GUNTER ,  WINTER ANDREAS ,  DRIES THOMAS ,  PEIFFER HERBERT ,  BUSCH DETLEF

    IPC: B29C47/06 ,  B29C55/12 ,  B29K23/00 ,  B29L7/00 ,  B32B27/18 ,  B32B27/32 ,  C08F8/00 ,  C08F10/06 ,  C08J5/18 ,  C08L23/10

    Abstract: Biaxially oriented polypropylene (BOPP) film with at least one base layer (A) contg. polypropylene (PP) is claimed, in which (a) the isotactic block length between two structural defects is more than 40 (statistical average), (b) the n-heptane-insol. component of the PP has an isotacticity (by C-NMR spectrometry) of at least 95%, (c) the mol. wt. ratio Mw/Mn is less than 4, (d) the PP contains less than 1% n-heptane-soluble component, and (e) the base layer has elastic moduli of more than 2400 and more than 4800 N/mm in the machine (longitudinal) and transverse directions respectively. Also claimed is a process for the prodn. of this BOPP film, by heating, compressing and melting the polymers for the different layers in extruders, combining the different melts, extruding through a sheet die, cooling and compacting the film on a take-off roll, and orienting the film by stretching in the machine direction by a factor of (3:1)-(9:1) and in the transverse direction by a factor of (4:1)- (12:1).

    PHOTOSENSITIVE RECORDING MATERIAL
    4.
    发明专利
    PHOTOSENSITIVE RECORDING MATERIAL 未知

    公开(公告)号：AU4228685A

    公开(公告)日：1985-11-14

    申请号：AU4228685

    申请日：1985-05-10

    Applicant: HOECHST AG

    Inventor： SCHLOGL GUNTER ,  MACK GERHARD ,  MICHEL MANFRED

    IPC: G03F7/30 ,  G03F7/00 ,  G03F7/115 ,  G03C1/60 ,  G03F7/08

    Abstract: Disclosed are a novel photosensitive recording material and a method for using the recording material in the production of planographic printing plates. The recording material comprises a support and a negative-working photosensitive layer that contains a diazonium salt polycondensation product as the photosensitive compound and, in addition, a colorless inorganic pigment which is insoluble in water and organic solvents and which has an average particle diameter from 1 to 20 mu m. The pigment is present in a quantity from 0.01 to 2% by weight, relative to the non-volatile constituents of the layer, and is evenly distributed in the layer. Due to the pigment content, a rough layer surface is formed, which has the effect of reducing the time required for creating a vacuum in a vacuum frame into which the recording material is mounted. The presence of the pigment in the layer also produces an improved tonal rendering in the print obtained.

    Biaxially oriented polypropylene film having a high surface modulus
    5.
    发明专利
    Biaxially oriented polypropylene film having a high surface modulus 未知

    公开(公告)号：AU717639B2

    公开(公告)日：2000-03-30

    申请号：AU5465396

    申请日：1996-05-30

    Applicant: HOECHST AG

    Inventor： PEIFFER HERBERT ,  BUSCH DETLEF ,  DRIES THOMAS ,  SCHLOGL GUNTER ,  WINTER ANDREAS

    IPC: B29C47/06 ,  B29C55/12 ,  B29K23/00 ,  B29L7/00 ,  B32B27/18 ,  B32B27/32 ,  C08F8/00 ,  C08F10/06 ,  C08J5/18 ,  C08L23/10 ,  C08F110/06 ,  C08J5/22

    Abstract: Biaxially oriented polypropylene (BOPP) film with at least one base layer (A) contg. polypropylene (PP) is claimed, in which (a) the isotactic block length between two structural defects is more than 40 (statistical average), (b) the n-heptane-insol. component of the PP has an isotacticity (by C-NMR spectrometry) of at least 95%, (c) the mol. wt. ratio Mw/Mn is less than 4, (d) the PP contains less than 1% n-heptane-soluble component, and (e) the base layer has elastic moduli of more than 2400 and more than 4800 N/mm in the machine (longitudinal) and transverse directions respectively. Also claimed is a process for the prodn. of this BOPP film, by heating, compressing and melting the polymers for the different layers in extruders, combining the different melts, extruding through a sheet die, cooling and compacting the film on a take-off roll, and orienting the film by stretching in the machine direction by a factor of (3:1)-(9:1) and in the transverse direction by a factor of (4:1)- (12:1).

    Biaxially oriented polypropylene film having good optical properties
    7.
    发明专利
    Biaxially oriented polypropylene film having good optical properties 未知

    公开(公告)号：AU717307B2

    公开(公告)日：2000-03-23

    申请号：AU5465696

    申请日：1996-05-30

    Applicant: HOECHST AG

    Inventor： PEIFFER HERBERT ,  BUSCH DETLEF ,  DRIES THOMAS ,  SCHLOGL GUNTER ,  WINTER ANDREAS ,  SCHUHMANN DETLEF

    IPC: B29C47/06 ,  B29C55/12 ,  B29K23/00 ,  B29L7/00 ,  B32B27/18 ,  B32B27/32 ,  C08F8/00 ,  C08F10/06 ,  C08J5/18 ,  C08L23/10 ,  C08J5/22 ,  C08F110/06

    Abstract: Biaxially oriented polypropylene (BOPP) film with at least one base layer (A) contg. polypropylene (PP) is claimed, in which (a) the isotactic block length of the PP between two structural defects is more than 40 (statistical average); (b) the n-heptane- insol. component of the PP has an isotacticity (by C-NMR spectrometry) of at least 95%; and (c) the PP has a mol. wt. ratio Mw/Mn of less than 4 and contains less than 1% n-heptane-soluble component. Sealable film of this type has a gloss value of more than 90, pref. more than 105, and an opacity of less than 2.5, pref. less than 2.0. Non-sealable BOPP film has a gloss value of more than 120, pref. more than 130, and an opacity of less than 2.0, pref. less than 1.8. Also claimed is a process for the prodn. of this BOPP film, by (i) heating, compressing and melting the polymers for the different layers in extruders; (ii) combining the different melts; (iii) extruding through a sheet die; (iv) cooling and compacting the film on a take-off roll; and (v) orienting the film by stretching in the machine direction by a factor of (3:1)-(9:1) and in the transverse direction by a factor of (4:1)-(12:1).

    Biaxially oriented polypropylene film having improved mechanical and barrier properties
    10.
    发明专利
    Biaxially oriented polypropylene film having improved mechanical and barrier properties 未知

    公开(公告)号：AU717452B2

    公开(公告)日：2000-03-23

    申请号：AU5465596

    申请日：1996-05-30

    Applicant: HOECHST AG

    Inventor： PEIFFER HERBERT ,  BUSCH DETLEF ,  DRIES THOMAS ,  SCHLOGL GUNTER ,  WINTER ANDREAS

    IPC: B29C47/06 ,  B29C55/12 ,  B29K23/00 ,  B29L7/00 ,  B29L9/00 ,  B32B27/18 ,  B32B27/32 ,  C08F8/00 ,  C08F10/06 ,  C08J5/18 ,  C08L23/10 ,  C08J5/22 ,  C08F110/06

    Abstract: Biaxially oriented polypropylene film with at least one base layer contg. polypropylene has (a) isotactic block length between two structural defects of more than 40 (statistical average), (b) n-heptane-insol. component of the polypropylene with an isotacticity (by C-NMR spectrometry) of at least 95%, (c) mol. wt. ratio Mw/Mn of less than 4 and (d) polypropylene contg. less than 1% n-heptane-soluble component. Also claimed is a process for the prodn. of this film. Pref. the base layer (A) has elastic moduli of more than 2400 and more than 3800 N/mm in the machine direction and transverse direction respectively. (A) contains polypropylene in which the heptane-insol. component has an isotacticity of at least 96%, pref. at least 97%, and a Mw/Mn ratio of less than 3.0, pref. less than 2.7. The film may have outer layer(s) (B) of olefinic polymer on one or pref. both sides and interlayer(s) (C) of olefinic polymer between base and outer layers. Layer (A) contains an antistatic agent, (B) contain(s) lubricants and/or antiblocking agents, and (A), (B) and/or (C) contain neutralising agents and/or stabilisers; interlayer(s) (C) may contain neutralising agents, stabilisers, antistatics and/or antiblocking agents. Layers (B) may or may not be sealable. The total film thickness is 4-100 microns, with the base layer (A) making up 40-60% of this. Alternatively, the film may consist of a single layer.

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