Coating processes – With post-treatment of coating or coating material – Heating or drying
Patent
1994-03-02
1997-04-01
Reddick, Judy M.
Coating processes
With post-treatment of coating or coating material
Heating or drying
427288, 427391, B05D 302
Patent
active
056163649
ABSTRACT:
Provided are aqueous dispersion consisting essentially of high-molecular weight polymer prepared by aqueous suspension polymerizing a blend of monomers, said blend consisting essentially of: (i) a plasticizing amount by weight of a monomer selected from the group consisting of plasticizing alkyl acrylate monomers and mixtures thereof, (ii) a hardening amount by weight of a monomer selected from the group consisting of hardening alkyl acrylate monomers and mixtures thereof, and (iii) a crosslinking amount by weight of a monomer selected from the group consisting of di-ethylenically unsaturated monomers and mixtures thereof, in an aqueous suspension comprising a polymer component consisting essentially of a low-molecular weight, water-soluble, acrylic polymer having carboxylate functionality. Also provided is a method of coating a substrate comprising (i) contacting a surface of a substrate with an aqueous dispersion composition comprising an aqueous dispersion as defined above, and (ii) drying said surface to form a film of said polymer in contact with said surface. In preferred methods, said polymer in aqueous dispersion is supplied to said surface by a hydrophilic cylindrical transfer roll. These polymers are particularly useful as the binder for an ink composition, or an overprint varnish, having good wet block resistance.
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Boucher Steven P.
Cleary Brenda A.
Henkel Corporation
Jaeschke Wayne C.
Ortiz Daniel S.
Reddick Judy M.
Wood John Daniel
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