Aqueous coating composition comprising an addition polymer and a polyurethane
AssigneeAkzo Nobel N.V.
InventorsJan Wilhelm Ernst Moos, Johannes Hubertus Van Diemen, Gertrude A. Broekroelofs
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Abstract
The present invention discloses an aqueous coating composition comprising 5 to 95 wt. % of an alkali-swellable core-shell addition polymer (I), and 95 to 5 wt. % of a polyurethane (II). The present invention provides an aqueous coating composition which may be used as base coat in a base coat/clear coat system which has good mechanical properties, a high flop, a high gloss, practically no strike-in, and a good water-resistance. Due to the fact that higher solids contents can be achieved with the aqueous coating composition of the present invention, a reduction in drying times and number of coats is obtained.
Claims9
Aqueous coating composition comprising
- 5 to 95 wt. % of at least one alkali-swellable core-shell addition polymer (I), and
- 95 to 5 wt. % of at least one polyurethane (II),
- the sum of the wt. % indicated for the polymers (I) and (II) always being 100 wt. %.
Dependencies are inferred from the claim text.