Patent ID: 6284351
Filing Date: 2001-09-04
Classification: B32B,C09D,G10K,Y10T

Abstract:
A paint coated fiberboard structure comprising a fiberboard substrate and a discontinuous paint coating thereon, said fiberboard substrate having a noise reduction coefficient equal to or greater than 65, wherein the paint coating is acoustically transparent to sound when applied to the substrate so that the sound can penetrate through the paint coating and be absorbed in the substrate, wherein further the coating prior to application to the substrate is about 70 to about 85 percent solids by weight and consists essentially of a latex, large size inert filler particles ranging from about 40 to about 150 mesh, very small size inert filler particles ranging from about 325 mesh and finer, and water, wherein further the water and very small particles have a greater affinity for the large particles than for the substrate thereby forming discrete individual paint droplets on the substrate.