Coating processes – With post-treatment of coating or coating material – Solid treating member or material contacts coating
Patent
1997-03-03
1998-09-01
Cameron, Erma
Coating processes
With post-treatment of coating or coating material
Solid treating member or material contacts coating
427391, 427395, 162136, 162196, B05D 704, D21F 700
Patent
active
058008705
ABSTRACT:
The invention provides an improved method of coating mediumweight and heavyweight papers in a size press by applying a paper coating composition comprising a binder wherein the binder comprises a stable aqueous dispersion comprising a water insoluble component and a water soluble component such that the water insoluble component comprises coalescable polymer particles which have a T.sub.g less than 55.degree. C. and a majority of which have a particle size less than 1 micron; and the water soluble component comprises a water soluble polymer capable of inhibiting coalescence of said polymer particles, or a water soluble polymer and a component capable of inhibiting coalescence of said polymer particles; and wherein said water insoluble component comprises greater that 3% and less than 75% by weight of the binder solids and said water soluble component comprises greater than 25% and less than about 97% of said solids.
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Luebke Gary
Pauley Edward P.
Cameron Erma
Penford Products Co.
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