(US5227223-A)      The web has, on at least one side, repetitive patterns of conductive metal lines of width not greater than 50 microns, pref. not greater than 25 microns. At least part of the metal lines functions as a circuit connector, induction heater, radiation reflector, antenna, axle, gear, wheel, lever or a combination of these. The lines are of Fe, Co, Sn, Au, Pd, Pt, Ni or pref. Cu having a ductility of at least 8%.    USE/ADVANTAGE -   Used for improved fabrication of e.g. printed circuits by electroless deposition on catalytic images, the webs travelling at high speeds e.g. of up to 500m/min. The lines can be used as electrical, electronic energy conversion and/or mechanical devices.    (JP6508181-W)      Producing a two-dimensional image which is adaptable to electroless deposition of metal comprises printing a catalytic ink onto a moving web from a rotating gravure roller, the catalytic ink comprising a soln. of less than 10 wt.% solids comprising polymer and a group IB or group 8 metal cpd., complex or colloid, and having a viscosity of 20-600 cpoises (Brookfield no. 1 spindle at 100 rpm, 25 deg.C.).    A web having repetitive patterns of two dimensional metal image including a conductive metal line of 50 microns width or less and adapted for use as an electrical device is also claimed.    USE/ADVANTAGE -   This method allows fabrication of 2-dimensional imaged metal articles on webs, esp. moving webs, by electroless deposition of metal onto a catalytic pattern. This is useful for producing electronic devices such as diodes, capacitors, etc. or energy conversion devices such as batteries, sensors or fuel cells. Conventional techniques involve the use of catalytic printing inks which require considerable drying/baking and which therefore limits the printing speeds attainable. This method uses low solids inks to achieve fine line images at printing speeds of up to 500 m/min., with vertical drying possible.    (US5403649-A)      A web has repetitive patterns of conductive metal lines on at least one side. At least one line is not wider than 100 microns. The metal lines function as a circuit connector, induction heater, radiation reflector, antenna, axle, gear, wheel, lever or any combination of these, and is made from Cu, Fe, Co, Sn, Au, Pd, Pt and/or Ni.    USE -   For a diode, capacitor, transistor, resistor, inductor, pi circuit, battery, fuel cell, sensor or any combination of these (claimed).