Abstract: A process for manufacturing a magnetic material-containing carpet tile which comprises: forming a uniform fluid mixture of a liquid resinous material (e.g., vinyl chloride plastisol or poly(acrylic acid) water-based emulsion) and at least about 60% by weight of the mixture of a particulate magnetizable material (e.g., barium ferrite), applying the uniform fluid mixture to the back of a carpet facing to form a carpet composite, heating the carpet composite to solidify the mixture and fuse the mixture with the carpet facing and thereby provide a carpet covering, forming the resulting magnetized carpet covering into carpet tiles and applying a magnetic force to the carpet tiles to magnetize the particulate magnetizable material.

Abstract: An improved carpet tile for commercial, industrial or home use is disclosed. The carpet tile includes a carpet pile yarn facing portion including a stiffening and stabilizing layer (e.g., glass fiber layer). The backing portion also includes a stiffening and stabilizing layer (e.g., glass fiber layer). Interposed between the facing and backing portions is a stabilizing layer of a mixture of from about 70 to about 90 weight percent non-woven glass fibers and from about 30 to about 10 weight percent of a polyester. The resulting unitary carpet tile shows surprising dimensional stability, stiffness and floor hugging properties even during periods of concentrated stress, and passes rigorous flame retardancy and smoke emission tests.

Abstract: An improved carpet tile for commercial, industrial or home use is disclosed. The carpet tile includes a tufted carpet facing portion including a stiffening and stabilizing layer (e.g., a primary backing layer and a glass fiber layer) in which the tufted carpet portion is embedded. The backing portion also includes a stiffening and stabilizing layer (e.g., glass fiber layer). Interposed between the facing and backing portions is a resilient thermoplastic material (e.g., polyvinyl chloride). The resulting unitary carpet tile shows surprising dimensional stability, stiffness and floor hugging properties even during periods of concentrated stress.