Abstract: A carpet tile having a generally planar body where the body has a traffic surface and a mounting surface. A portion of the mounting surface is formed from a resin modified bitumen matrix. The matrix is effective in substantially preventing adherence of bitumen to tile forming tools, the contamination of such tools by the bitumen, or both. The matrix comprises bitumen, a predetermined amount of resin, and a predetermined amount of filler. Also provided is a method for preparing resin modified bitumen for a mounting surface of a carpet tile. The method comprises heating bitumen to a temperature between about 120° C. and about 180° C., adding a predetermined amount of resin and filler to the bitumen to form a matrix wherein the resin and filler is added in amount effective to substantially prevent adherence of bitumen to tile forming tools, and applying the matrix to the mounting surface.

Abstract: A carpet tile having a generally planar body where the body has traffic surface, a back side and a back coating matrix affixed to the back side. A portion of the back coating is formed from a bitumen matrix. The bitumen matrix comprises an amount of bitumen and a resin with a portion of the bitumen PEN grade bitumen. The matrix composition may be processed and applied to carpet at temperatures between about 115° C. and 155° C. and is typically applied at temperatures of about 125° C.