Patent ID: 7740914
Filing Date: 2010-06-22
Classification: B05D,D21H

Abstract:
1. Method to manufacture a metallized paper which comprises the stages of: (i) curtain coating of a first aqueous film-forming composition on a substrate; (ii) metallizing the coated substrate; and (iii) curtain coating of a second aqueous film-forming composition on said metallized substrate, characterized in that said first and second aqueous film-forming composition comprises a first emulsion polymer and/or second colloidal dispersion polymer, wherein said first and/or second aqueous film-forming composition is selected from an acrylic polymer, an acrylic-styrene polymer, a modified acrylic polymer and their mixtures and wherein said first and/or second aqueous film-forming composition has: a) a low-shear viscosity, measured in a Brookfield viscometer at 60 rpm and 20° C., between 60 and 220 mPas; b) a high-shear viscosity, measured in a Haake viscometer at 37,750 s c) a static surface tension, measured by a ring tensiometer, between 25 and 40 dyn/cm.