中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

67 records (took 0.02 seconds)

    24.
    发明专利
    未知

    公开(公告)号：DE2847660A1

    公开(公告)日：1979-05-03

    申请号：DE2847660

    申请日：1978-11-02

    Applicant: REED KENNETH J

    Inventor： WIRD SPAETER GENANNT WERDEN

    IPC: B41M3/12 ,  B44C1/175 ,  C08F299/06 ,  C09D11/10 ,  B44C1/16

    Abstract: A method of manufacturing a water-release transfer is disclosed in which a design in a photopolymerizable ink is applied to a substrate having a water-soluble release coating and the design is subjected to photopolymerizing radiation, e.g. ultra-violet light, to cause the ink to polymerize to a solid state. Preferably the ink comprises a mixture of a liquid unsaturated monomer and a viscous or solid prepolymer, and one or both of the monomer and prepolymer contain acryloyl or methacryloyl groups. The invention includes water-release transfers manufactured using photopolymerizable inks.

    Improvements in and relating to the manufacture of antibacterial sulphanilamido compounds
    27.
    发明专利
    Improvements in and relating to the manufacture of antibacterial sulphanilamido compounds 未知

    公开(公告)号：GB570196A

    公开(公告)日：1945-06-26

    申请号：GB2121843

    申请日：1943-12-17

    Applicant: GLAXO LAB LTD ,  IAN MORRIS HEILBRON ,  ARTHUR HERBERT COOK ,  REED KENNETH J

    IPC: A01N41/08

    Abstract: Sulphanilamido compounds having antibacterial properties and of the general formula wherein X represents a benzene nucleus which carries a nitrile group in any one of the o-, m-or p-positions to the sulphonamide group, are prepared by interaction of an aminobenzene derivative carrying a nitrile group as a nuclear substituent in the o-, m- or p-position with (a) a benzenesulphonyl halide, advantageously in presence of an acid acceptor, such halide containing in the p-position a substituent readily convertible into an amino group, viz. an amino group protected by an acyl or other easily removable group or a nitro, nitroso, azo, hydrazo or other group capable of reduction to an amino group or a halogen atom, or (b) a benzenesulphonyl ester similarly substituted or substituted by an amino group in the p-position and subsequent conversion of the said convertible substituent, if present, into an amino group, e.g. by mild hydrolysis of an acylamino group, performed so as to leave the nitrile group unaffected. In examples: (1) o-sulphanilamidobenzonitrile is obtained by slowly adding acetylsulphanilyl chloride to o-aminobenzonitrile, in pyridine, heating for 1 hour on the steam-bath, hydrolysing the precipitated N4-acetyl compound by boiling with hydrochloric acid and isolating the free o-sulphonamidobenzonitrile by neutralizing the solution; (2) m-sulphanilamidobenzonitrile; and (3) p-sulphanilamidobenzonitrile are similarly obtained from the m- and p-aminobenzonitriles respectively. o-Aminobenzonitrile is obtained by reduction of the corresponding nitro-compound, which has been specially purified by passing the crude product in benzene through an alumina column, washing the alumina with benzene, concentrating the filtrate and adding light petroleum.

Patent Agency Ranking