Robert Bryant Mackey

US Patent:

20060269757, Nov 30, 2006

Filed:

May 24, 2005

Appl. No.:

11/138872

Inventors:

Robert Mackey - Tomball TX, US

International Classification:

B32B 27/40

US Classification:

428423100

Abstract:

An impact-absorbing durable-surface multi-layer system has a shock-absorbing layer and a wear-layer. Each layer is comprised of a polyurethane binder combined with a rubbery aggregate. An acrylic polymer coating is overlaid on and percolates into the wear-layer, providing UV protection for the polyurethane binder used in the wear-layer. The aggregate in each of the two layers comprises elongated rubber pieces, with the length and width of the shock-absorber layer pieces being sized larger than the length and width of the wear-layer pieces. As an additional feature, a layer of rubber gravel is laid underneath the system. In an alternative embodiment, the coating placed on top of the wear layer may be polyurethane.