Method of forming latex-, PVC- and plasticizer-free foamed floor or wall coverings

摘要

A process for manufacturing latex-, PVC- and plasticizer-free textile or plastic floor or wall coverings, which contain a foamed layer, in which a powder mixture containing: (1) 100 parts by weight of a thermoplastic polymer; (2) 0-100 parts by weight of fillers; (3) 0.5-7 parts by weight of blowing agents; and (4) 0-30 parts by weight of additives; is scattered onto a backing layer, melted at a temperature within the range of from about 70 DEG to about 110 DEG C. smoothed between smoothing rolls and foamed at a temperature within the range of from about 120 DEG to about 200 DEG C.