Process and related apparatus for block coating

Details Process and related apparatus for block coating Process and related apparatus for block coating

2005-03-24

2008-08-26

Lamb, Brenda A. (Department: 1792)

Coating apparatus

Immersion or work-confined pool type

Work-confined pool

C118S419000, C118S602000

Reexamination Certificate

active

07416608

ABSTRACT:
The present invention discloses an apparatus for block type extrusion coating, and a process for forming block coating or grid-type coating on a substrate. The present invention uses a die set composed of an upper mold, a lower mold and a shim therebetween, which can be used to form a plurality of coated stripes. The present invention further uses several control valves, pumps and a controller to intermittently extrude a coating solution from the die set, so that the stripe coating is converted to a block coating. The block coated substrate can be rotated 90 degrees, followed by a stripe coating process to form a grid-type coating on the substrate.

REFERENCES:
patent: 3941902 (1976-03-01), Wennerblom et al.
patent: 4142010 (1979-02-01), Pipkin et al.
patent: 5334247 (1994-08-01), Columbus et al.
patent: 5399196 (1995-03-01), Ichikawa et al.
patent: 6540833 (2003-04-01), Gibson et al.

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