Bibliographic data

Document DE000019842576A1 (Pages: 6)

Bibliographic data Document DE000019842576A1 (Pages: 6)
INID Criterion Field Contents
54 Title TI [DE] Verfahren zur Beschichtung von Schüttgütern
[EN] Non-contact coating of bulk materials in powder or granule form with multilayers takes place in vacuum or gas as they fall or fly past metallic vapor deposition sources
71/73 Applicant/owner PA Parthy, Kai, Dipl.-Ing., 50823 Köln, DE
72 Inventor IN
22/96 Application date AD Sep 17, 1998
21 Application number AN 19842576
Country of application AC DE
Publication date PUB Mar 23, 2000
33
31
32		 Priority data PRC
PRN
PRD

51 IPC main class ICM C23C 14/24
51 IPC secondary class ICS C03C 17/09
IPC additional class ICA
IPC index class ICI
Cooperative patent classification CPC C03C 17/09
C03C 2217/25
C03C 2218/15
C04B 41/4584
C04B 41/81
C09C 1/0078
C09C 3/00
C23C 14/22
C23C 14/223
MCD main class MCM
MCD secondary class MCS C03C 17/09 (2006.01)
C04B 41/45 (2006.01)
C04B 41/81 (2006.01)
C09C 1/00 (2006.01)
C09C 3/00 (2006.01)
C23C 14/22 (2006.01)
MCD additional class MCA
57 Abstract AB [DE] Die Erfindung betrifft ein Verfahren zur kostengünstigen Beschichtung von pulvrigen Substraten, wie z. B. Kunststoff-Granulate, mineralische Pulver, wie Glimmer oder reflektierende Glas-Perlen. DOLLAR A Die Partikel fallen frei beweglich an einer Verdampferquelle vorbei und werden durch die seitliche Abstrahlung der Quelle beschichtet.
[EN] The loose particles or granules fall past or fly over one or more vapor sources in vacuum or gas. Preferred features: Deposition onto the particles from vapor in either atomic or ionic form occurs close to the vapor sources. Particles comprise plastic granules, metal powder, pharmaceutical actives, mineral powder e.g. mica, ceramic powder, glass beads or granules of extremely thin transparent plastic film. Particles are thrown through a flight path above the metal vapor source(s). Particles are introduced into the feed vessel via a vacuum lock. They are coated only on sides facing the source. They are alternatively coated from several sides, passing two or more sources vaporizing the same, or different materials. Particles pass a succession of adjacent sources. Materials are vaporized, at suitable rates. Sources are screened from each other by shades or diaphragms. Sources are electrical resistance-heated metal spirals and boats (vaporization crucibles). Vaporization and deposition are plasma-assisted. Electron beam vaporizers are employed, alternatively cathode sputtering or combinations of the foregoing may be used in the same chamber. Particles are accelerated, preferably by a horizontal conveyor or rotating scatter-disc, to fly over the vapor sources.
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56 Cited non-patent literature indicated by the applicant CTNP
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Search file IPC ICP C03C 17/09
C23C 14/24