Coating processes – Particles – flakes – or granules coated or encapsulated – Resin base
Patent
1974-07-01
1976-08-03
Gwinnell, Harry J.
Coating processes
Particles, flakes, or granules coated or encapsulated
Resin base
427385, 427387, 428404, 428406, 428407, B05D 700
Patent
active
039730603
ABSTRACT:
A process for coating moldings of plastics which tend to stick together at room temperature by applying solutions containing a nonadhesive resin of (1) a copolymer of at least one member of the group consisting of styrene and methylstyrene and a monoester of at least one member of the group consisting of maleic and fumaric acid or (2) a reaction product of at least one member of the group consisting of cyclohexanone and methylcyclohexanone with formaldehyde or acetaldehyde, said non-adhesive resin having a monoscope yield point or more than 80.degree.C. and a ball indentation hardness of from 310 to 800 kp/cm.sup.2 at 10 seconds and thereafter evaporating the solvent at a temperature which is lower than the softening point of the material to be coated.
REFERENCES:
patent: 2486971 (1949-11-01), Ohlmann
patent: 2639808 (1953-05-01), Barry
patent: 3377191 (1968-04-01), Macnair
patent: 3661810 (1972-05-01), Gahmig
Alien Property Custodian Serial No. 397,138 5/11/43, Fikentscher et al.
Buechner Oskar
Fauth Karl-Heinz
Gierth Volker
Mueller-Tamm Heinz
Badische Anilin- & Soda-Fabrik Aktiengesellchaft
Gwinnell Harry J.
Konopacki Dennis C.
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