Patent ID: 7476430
Filing Date: 2009-01-13
Classification: C08L,E04C,E04F,Y10T

Abstract:
1. A wall or ceiling comprising a plurality of aligned support structures having outer, planar support surfaces that lie in a common plane, and a plurality of wall or ceiling panels, each having a planar outer surface, secured to the support structures, adjacent one another, to provide a planar wall or ceiling surface, each wall or ceiling panel having a squared outer edge adjacent to an outer edge of an adjacent panel to minimize space between said adjacent outer edges of said adjacent wall or ceiling panels; and a coating composition, having a viscosity of at least 50,000 cps, comprising 10-15% by wt. water; 1-10% by wt. humectant; 0.01-5% by wt. dispersant; 30-50% by wt. calcium carbonate and 1-4% by wt. feldspar fillers having a particle size of about 5 μm to about 100 μm and 16-25% by weight acrylic polymer or acrylic copolymer, applied as a continuous coating over the wall or ceiling panels and over said space between adjacent panels to provide a continuous, planar outer surface coating on said wall or ceiling panels, without a visible joint between said adjacent panels after said coating composition has dried, and without applying a joint compound or tape over said space between said adjacent panels.