中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

23 records (took 0.02 seconds)

    Production of Magnetic Recording Media
    11.
    发明专利
    Production of Magnetic Recording Media 未知

    公开(公告)号：GB1150947A

    公开(公告)日：1969-05-07

    申请号：GB4098466

    申请日：1966-09-14

    Applicant: BASF AG

    Inventor： WILHELM HANS ,  BECHT GUENTER ,  HENKLER HERBERT ,  SCHNELL GEORG ,  HARTMANN JOB-WERNER

    IPC: C09D5/23 ,  G11B5/702

    Abstract: 1,150,947. Magnetic compositions. BADISCHE ANILIN- & SODA-FABRIK A.G. 14 Sept., 1966 [15 Sept., 1965], No. 40984/66. Heading H1H. In the production of magnetic recording media by applying a suspension of ferromagnetic powder in a solution of a binder on to a backing, the binder comprises a mixture of a polyamide and a monomer having at least two double bonds, which is polymerized in situ by irradiation, heat, or ozone. The monomer is preferably acrylic, and may be N,N 1 -methylene, ethylene, trimethylene, hexamethylene, or p,p-diaminocyclohexylmethane, -bis-acrylamide or -methacrylamide; or an acrylate or methacrylate of glycol, propylene glycol, butanediol, pentanediol, hexanediol, glycerol, trimethylol propane, pentaerythritol, or cyclic polyols. Suitable polyamides, solvents, initiators, plasticizers, and bases are listed. Polymerization may be effected (before, during, or after drying) with I.R., visible, or U.V. radiation, heated rollers, dryers, α, #, or γ rays, passage of O 3 produced by electric discharge. Monomers having one double bond may also be incorporated with the binder. The wt. ratio of powder: binder may be 2: 1 to 6: 1, and the powder may be Fe 3 O 4 , acicular γ- Fe 2 O 3 , or Fe.

    Photomechanical production of printing plates
    12.
    发明专利
    Photomechanical production of printing plates 未知

    公开(公告)号：GB1148328A

    公开(公告)日：1969-04-10

    申请号：GB3301266

    申请日：1966-07-22

    Applicant: BASF AG

    Inventor： WILHELM HANS ,  HENKLER HERBERT ,  FLOSS JOSEF GEORG ,  GEHM ROBERT

    IPC: G03F7/037

    Abstract: 1,148,328. Photo-polymerization process. BADISCHE ANILIN- & SODA-FABRIK A.G. 22 July, 1966 [23 July, 1965], No. 33012/66. Heading C3P. [Also in Division G2] A photographic process for the production of printing plates comprises image-wise exposing a photo-polymerizable material in the form of a plate or sheet and containing 80 to 40% by weight of a synthetic linear polyamide, 0À5 to 15% by weight based on the polyamide of benzene-sulphonic acid n-butylamide, 20-60% by weight of monomer(s) containing at least one monomer having at least two polymerizable double bonds and optionally at least one monomer with a single double bond, the single double-bond monomer content being up to 40% of the total monomer content, and a photo-initiator (e.g. benzoin methyl ether) and then developing the exposed material. A polymerization inhibitor may also be present in the composition of the layer. Exemplified monomers with at least two double bonds are alkylene and arylene bisacrylamides; 4,4 1 -bis-(acryloylamino cyclohexyl)-methane and triallyl cyanurate, while styrene, maleic anhydride, methyl methacrylate and butane diol-(1,4)-monoacrylate are exemplified as monomers with single double bonds.

    MAGNETIC DOMAIN STORAGE DEVICE
    13.
    发明专利
    MAGNETIC DOMAIN STORAGE DEVICE 未知

    公开(公告)号：CA1111556A

    公开(公告)日：1981-10-27

    申请号：CA299070

    申请日：1978-03-16

    Applicant: BASF AG

    Inventor： HENKLER HERBERT ,  KOENIG ROLAND ,  DEICHELMANN HERMANN ,  KOCH VOLKER

    IPC: G11C11/14 ,  G11C19/08 ,  H01F10/06

    Abstract: : A magnetic domain storage device comprising a ferromagnetic, polycrystalline metal layer which is applied to a support and comprises areas of different coercivity, the areas of lower coercivity in the form of strip-shaped channels being surrounded by areas of higher coercivity, a system of electrical conductors, extending in planes arranged parallel and in close vicinity to the support, for creating, propagating and detecting magnetic domains in the channels of low coercivity, and a baseplate with electrical connections, the areas of lower coercivity being in the form of channels which follow a quasispiral path on the support, with on end adjacent to the center of the support and the other end adjacent to a corner of the support and executing at least one full 360.degree. turn.

    LIQUID CRYSTAL CELL FOR PHOTO EXPOSURE
    14.
    发明专利
    LIQUID CRYSTAL CELL FOR PHOTO EXPOSURE 未知

    公开(公告)号：CA1000093A

    公开(公告)日：1976-11-23

    申请号：CA185991

    申请日：1973-11-16

    Applicant: BASF AG

    Inventor： HENKLER HERBERT

    IPC: G03B27/32 ,  B41J2/44 ,  G02F1/13 ,  G02F1/135 ,  G03B15/00 ,  G03F7/20 ,  G03G15/04

    Abstract: An arrangement for exposing photosensitive material, especially the photopolymer coatings of printing plates, comprising the screen of a cathode ray tube with the information displayed thereon, an optical system and at least one liquid crystal cell for storing the information, and a light source for transferring the stored information to a photosensitive coating. In particular, an arrangement according to the invention greatly simplifies the exposure of photopolymer printing plates, and enables information reproduced successively on the screen of the cathode ray tube to be displayed simultaneously side by side.

    Improved Photopolymerizable Compositions and their use
    19.
    发明专利
    Improved Photopolymerizable Compositions and their use 未知

    公开(公告)号：GB1154872A

    公开(公告)日：1969-06-11

    申请号：GB3996766

    申请日：1966-09-07

    Applicant: BASF AG

    Inventor： HENKLER HERBERT ,  WILHELM HANS ,  FLOSS JOSEF GEORG ,  STREHLER HUGO ,  BRODT RUDOLF

    IPC: G03F7/031 ,  G03F7/037

    Abstract: 1,154,872. Photo-polymerizable materials. BADISHE ANILIN & SODA-FABRIK A. G. Sept. 7, 1966 [Sept. 8, 1965], No. 39967/66. Heading G2C. [Also in Division C3] Printing reliefs are prepared by exposing a plate, film or sheet of a photo-polymerizable composition to the action of actinic light, through a negative or positive image-bearing transparency, and removing in the desired depth the non-polymerized (non exposed) areas by means of a suitable solvent, said photo-polymerizable composition comprising a mixture of 50 - 90% by weight of a soluble linear synthetic polyamide containing as an integral part of the polymer chain recurring amido groups and 10 - 50% by weight of at least one addition polymerizable monomer containing at least two non-conjugated ethylenic double bonds or a mixture of such monomer with a monomer containing only one ethylenic double bond (said monomer or monomers being compatible to the extent of at least 30% by weight of the polyamidemonomer mixture with said polyamide), and 0À05 - 8% by weight of the polyamide/monomer mixture of at least one compatible carboxylic anhydride dispersed in the polyamide - monomer mixture. The compositions may also contain 0À01 - 10% by weight of the polyamide/monomer mixture of a photo-polymerisation initiator. The plate, film or sheet may be attached to a support, e.g. of metal, wood, paper or plastics material. The polyamide is preferably a copolymer of a lactam and/or nylon salt. Suitable poly-unsaturated monomers include alkylene - bis (meth) acrylamides, poly (meth) acrylyl derivatives of polyamines, (meth) acrylate esters of polyhydric alcohols, urethane and urea compounds obtained by reacting a diol mono (meth) acrylate or a mono - (meth) acrylamide with a diisocyanate, and heterocyclic compounds such as 1, 35 - triacryloyl - hexahydrotriazine- 1, 3, 5 and triallyl cyanurate. Suitable monoethylenic monomers include amides of (meth) acrylic, maleic and itaconic acid, styrene, mono- (meth) acrylate esters, N-vinyl-carbazole, N-vinyl pyrrolidone, N-vinyl-imides, vinyl acetate or propionate, dimethyl maleate and N - vinyl caprolactam. The anhydride component may be an aliphatic, cycloaliphatic or aromatic anhydride; polymeric anhydrides may also be used. Initiators which may be used include vicinal dicarbonyl compounds, α-carbonylalcohols, acyloin ethers, azonitriles, and polynuclear quinones. A thermal polymerization inhibitor, e.g. hydroquinone, p-methoxyphenol or di-t-butyl-p-cresol, may also be present. The photo-polymerization process is suitable for relief printing, indirect relief printing, dry offset printing and autotype intaglio printing.

Patent Agency Ranking