Apparatus for coating a web with a viscous coating material

Details Apparatus for coating a web with a viscous coating material Apparatus for coating a web with a viscous coating material

1981-04-09

1982-06-22

Pianalto, Bernard D.

Coating apparatus

With vacuum or fluid pressure chamber

118410, C23C 1308

Patent

active

043356729

ABSTRACT:
An apparatus for coating a moving web with a viscous coating material using an extrusion coating process includes an extrusion coater, a roller for guiding the web, a suction chamber and a die-shaped exhaust device characterized in that the vacuum in the suction chamber is maintained exclusively by exhaustion through a clearance space defined along the back wall of the suction chamber by means of the die-shaped suction apparatus. The cross-sectional area of the exhaust device is from 0.5 to 50 times that of the cross-sectional area of the die slot formed in the exhaust device divided by twice the number of exhaust openings provided therein.

REFERENCES:
patent: 2681294 (1954-06-01), Beguin
patent: 3502494 (1970-03-01), Ishiwata et al.
patent: 3735729 (1973-05-01), Bird

Affiliated with

Also associated with

Rating

Apparatus for coating a web with a viscous coating material does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus for coating a web with a viscous coating material, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for coating a web with a viscous coating material will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-648591