Coating processes – Electrical product produced – Integrated circuit – printed circuit – or circuit board
Patent
1977-03-24
1980-01-15
Beck, Shrive P.
Coating processes
Electrical product produced
Integrated circuit, printed circuit, or circuit board
427181, 427183, 427195, 427233, 427234, 427236, B05D 722, B05D 302
Patent
active
041839749
ABSTRACT:
A method for coating a cylindrical container with a thin, resinous coating by spraying powdered resin is disclosed. The technique involves spraying of finely divided resin particles into a beverage container from spray nozzles external to the container. The container may be sprayed by directing a pulse of a predetermined quantum of resin into the container to deposit a substantially uniform coating. Alternatively, a continuous flow of resin at a predetermined rate may be sprayed into a container. The resin particles are caused to adhere to the container by preheating the container. The coating is rendered continuous by preheating the container to temperatures above the softening point of the resin. Postheating of the coated container at temperatures in excess of about 300.degree. F. matures the coating.
REFERENCES:
patent: 2927044 (1960-03-01), Gough
patent: 3058443 (1962-10-01), Paton
patent: 3422795 (1969-01-01), Smith
patent: 3697313 (1972-10-01), Stumphauzer
patent: 3726711 (1973-04-01), Hogstrom
patent: 3745035 (1973-07-01), Troughton et al.
patent: 3815535 (1974-06-01), Becker et al.
patent: 3896602 (1975-07-01), Petterson
patent: 3903321 (1975-09-01), Schaad
patent: 3904930 (1975-09-01), Waldron
patent: 4025664 (1977-05-01), Gerek et al.
Coucher Robert G.
Gerek Gene
Beck Shrive P.
W. R. Grace & Co.
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