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Primary Examiner: Gwinnell, Harry J.
Assistant Examiner: Konopacki, Dennis C.
Attorney: Johnston, Keil, Thompson & Shurtleff

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Title: Process of applying non-adhesive coatings to plastics

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.


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Inventors: Mueller-Tamm, Heinz (Ludwigshafen, DT)
Buechner, Oskar (Ludwigshafen, DT)
Gierth, Volker (Ludwigshafen, DT)
Fauth, Karl-Heinz (Frankenthal, DT)

Application Number: 484435
Filing Date: 1974-07-01
Publication_date: 1976-08-03
Assignee: Badische Anilin- & Soda-Fabrik Aktiengesellchaft (Ludwigshafen (Rhine), DT)
Primary Class(es): 427/222 427/387, 427/393.5, 428/404, 428/406, 428/407
Other Classes:
US Patent Ref:
2486971Nov, 1949Ohlmann117/161.
2639808May, 1953Barry117/138.
3377191Apr, 1968Macnair117/161.
3661810May, 1972Gahmig117/100.

Other Refs: 670,9861,811,372
Jan, 1966BE.
Jun, 1970DT
Other References: Alien Property Custodian Serial No. 397,138 5/11/43, Fikentscher et al.