Coating processes – Falling curtain of coating material utilized
Reexamination Certificate
2007-01-30
2007-01-30
Bareford, Katherine (Department: 1762)
Coating processes
Falling curtain of coating material utilized
C427S286000, C427S288000, C118S324000, C118SDIG009
Reexamination Certificate
active
10496998
ABSTRACT:
A method and apparatus for curtain coating of a moved substrate, particularly for high-speed curtain coating of a continous paper web substrate, wherein a substrate (12) is moved below a hopper means (14), provides one or more liquid coating materials in the form of a free-falling curtain (16) impinging the substrate at a dynamic wetting line. (21) Edge guide elements (22, 24) are used for stabilizing the width and equalizing the flow speed of the coating curtain and allowing disturbance free provision of an auxiliary liquid (13) as well as practically compelte removal of the auxiliary liquid (23) wilst preventing the forming of solidification on the edge guides elements. An auxiliary liquid is injected (32) essentially parallel to the flow direction of the coating film at an edge of the coating film wilst moving along a slide of said hopper arrangement.
REFERENCES:
patent: 5763013 (1998-06-01), Devine et al.
patent: 5895687 (1999-04-01), Kondo et al.
patent: 5906865 (1999-05-01), Ellermeier et al.
patent: 5976251 (1999-11-01), Devine, III et al.
patent: 2001/0009698 (2001-07-01), Oki et al.
patent: 0 567 071 (1993-10-01), None
patent: 567 071 (1993-10-01), None
patent: 0 649 054 (1995-04-01), None
patent: 0 850 696 (1998-07-01), None
patent: 850 696 (1998-07-01), None
patent: 0 930 530 (1999-07-01), None
patent: 2000-218209 (2000-08-01), None
Derwent Abstract 1996-478906, EP 740,197, M. Gueggi, et al. Oct. 30, 1996.
Derwent Abstract 1999-154792, DE 19735588, I. Becker, et al. Feb. 18, 1999.
Derwent Abstract 1999-245910, EP 907,103, P. M. Schweizer, et al. Apr. 7, 1999.
Bareford Katherine
Dow Global Technologies Inc.
LandOfFree
Method and apparatus for curtain coating does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for curtain coating, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for curtain coating will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3789624