PRIMER COMPOSITION FOR ALUMINIUM FOIL Russian patent published in 2012 - IPC C09D133/08 C09D133/10 C09D125/04 C09D125/14 C08K5/05 B65D65/42 

FIELD: chemistry.

SUBSTANCE: composition contains 55.5-86.2 pts.wt aqueous dispersion of a copolymer with particle size of not more 0.1 mcm, containing 35.5-38.0 wt % butyl acrylate, 16.5-18.0 wt % 2-ethylhexyl acrylate, 10.0-11.0 wt % methyl methacrylate, 13.5-15.0 wt % styrene, 14.0-15.0 wt % α-methyl styrene, 5.0-5.5 wt % methacrylic acid, and 13.8-44.5 pts.wt aqueous solution of isopropyl alcohol mixed with water in ratio 1:1-3:1. The aqueous acrylic dispersion can additionally contain triallyl isocyanurate and/or vinyl triethoxy silane. The primer composition can additionally contain a wetting agent, an antifoaming agent, complexing agents, adhesive and biocidal additives.

EFFECT: improved continuity and adhesion strength of a polymer coating on aluminium foil, which ensures strong adhesion of printing ink on foil.

4 cl, 2 tbl, 24 ex