Abstract:
The invention concerns a device for applying magnetic dispersions to non-magnetic substrates, the device being optimised by a magnet which is disposed opposite the discharge slot of an extrusion caster and is covered at an angle by a soft iron bar. The inlet edge of the soft iron bar is disposed practically opposite the discharge slot. A curved guide member in front of the soft iron bar improves the sliding behaviour of the substrate during application.
Abstract:
This invention concerns a pulsed laser (L) used for quantitative spectral analysis of halogen-containing, non-metallic or at most partly metallic materials (T) in connection with an image recorder (BA), a spectrometer (SP) and a CCD camera, whereby the light intensity of at least one disk volume (V), from the expansion cone of the plasma (PA), is recorded, summarized and evaluated, whereby the temperature and density gradients can be advantageously detected.
Abstract:
A continuous material guide roller (14) essentially composed of a cylindrical thin-walled hollow body (4) with side surfaces (2) and fine through openings (5) on its peripheral surface. When a vacuum or compressed air is applied in the inner area of the cylinder (7), non-slip rotationally driven continuous material guide rollers and fixed or rotating air bearing rollers can be realized. Guide rollers, deflector rollers and feed rollers can be used in all types of continuous material conveyor equipment. Such rollers can be used advantageously in conveyor equipment for plastic or metal sheets and strips of film, paper and magnetic tape.
Abstract:
The invention concerns a magnetic recording medium comprising at least one magnetic recording layer containing magnetic pigments provided with a polymer I which is suitable as a dispersing resin and is obtained by reacting: A) a polymer II, obtained by reacting at least one ester, vinyl chloride, styrene or vinyl benzene in the presence of a compound containing an N-oxyl radical function, with: B) at least one compound X comprising: a) between 50 and 100 wt %, relative to X, of at least one compound XI selected from the group comprising an ester, an amide, an N-vinyl compound, styrene sulphonic acid or a vinyl benzene sulphonic acid; and b) between 0 and 50 wt %, relative to X, of at least one compound XIX selected from the group comprising an ester, vinyl chloride, styrene or vinyl benzenes, in the presence of a compound containing an N-oxyl radical function, the portion by weight of II in polymer I being between 10 and 90 wt % and the portion by weight of the total amount of X being between 10 and 90 wt % in polymer I.