Abstract: Described herein are a water-borne core-shell polymer, a method for preparing the same, and the applications thereof. Also described herein is a water-borne styrene/vinyl acetate (St/Vae) core-shell polymer which is suitable for corrugated board ink applications. The water-borne emulsion containing the core-shell polymer shows superior covering property and color strength.

Abstract: Provided herein is a transfer metallization primer comprising 1) 60-80 wt % of polyurethane dispersion based on a weight of the transfer metallization primer; 2) 20-40 wt % of self crosslinkable styrene acrylic emulsion based on the weight of the transfer metallization primer; wherein the polyurethane dispersion has a Tg of ?50° C. to ?30° C. and the self crosslinkable styrene acrylic emulsion has a Tg of 30° C. to 70° C. Also provided herein is a transfer metallization primer comprising a colloidal acrylic emulsion, wherein the colloidal acrylic emulsion has an acid value of 60 to 250 mgKOH/g, a weight average molecular weight of 5,500 to 100,000 daltons, and a Tg of 20 to 140° C. In addition, the transfer metallization primers may be used for paper packaging materials of cigarette, liquor, food, cosmetic, etc.