Process for making porous metal containing powder coating compos

Details Process for making porous metal containing powder coating compos Process for making porous metal containing powder coating compos

1976-01-14

1978-06-06

Foelak, Morton

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 25N, 260 25HA, 260 25L, 260 25HB, 260 25F, 260 291R, 260 292R, 260 292UA, 260 296R, 260 296F, 260 296XA, 260 296AB, 260 296RB, 260 296BM, 260 296MM, 260 37N, 260 40R, 260 40TN, 260 4222, 260 37M, C08J 930

Patent

active

040935710

ABSTRACT:
The present invention provides a process for preparing metal particle-containing powder coating compositions as well as the powder coating compositions produced by this process. The process involves spraying a solution which comprises solvent, resin, curing agent, and suspended metal particles to form droplets, and collecting the sprayed droplets in a liquid bath. The liquid bath contains a liquid which is miscible with the solvent but which is non-solvent for the solutes of the solution. The liquid bath is subjected to a radial motion. Thus the powder coating compositions are precipitated in substantially non-agglomerated form.
The resulting metal particle-containing powder coating compositions are useful in powder coating applications such as powder painting when it is desired to impart a metallic finish to an article such as an automobile. These powder coating compositions are particularly useful when it is desired to impart to a surface a thin film, such as a coil coating.

REFERENCES:
patent: 3710848 (1973-11-01), Labana et al.
patent: 3737401 (1973-06-01), Tsou et al.
patent: 3739049 (1973-06-01), Honjo
patent: 3775352 (1973-11-01), Leonard, Jr.
patent: 3803111 (1974-04-01), Munro et al.
patent: 3933579 (1976-01-01), Kershow et al.
patent: 3942903 (1976-03-01), Dickey et al.

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