Coating agent for paper surfaces

D - Textiles – Paper – 21 – H

Patent

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Details

D21H 19/00 (2006.01) D21H 19/08 (2006.01) D21H 19/20 (2006.01) D21H 19/40 (2006.01) D21H 19/58 (2006.01)

Patent

CA 2164154

The present invention relates to a coating agent for paper surfaces, in particular for paper which is aluminized. The coating agent comprises an aqueous polymer dispersion which comprises dispersed in aqueous phase a mixture of polymer particles having an average particle size of 0.2 to 5µm and particles having an average particle size of smaller than 0.1 µm. The mixing ratio of coarser polymer particles to the finer particles preferably amounts to 1 : 1 to 9 : 1. The coating agent according to the present invention is suitable not only to prepare an evaporation coating with metal, such as aluminum, but also as a primer layer which is applied after application of the metal layer, for example, to render the paper printable.

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