| abstract |
This invention relates to a process for the manufacture of a chemically bonded non-woven fiber material in sheet form which comprises incorporating with a base material a binder liquid containing, in an aqueous medium, a synthetic thermoplastic elastomer, a soluble filler, a hydrophilic chemical substance with free OH groups, a reactive fat-like hydrophobic compound with 10 to 24 carbon atoms in the molecular chain, and a crosslinking agent, freeing said base material from excess binder liquid, coagulating the retained polymeric binder, heating said resulting material to a temperature and for a time sufficient to crosslink said modifying constituents in said base material, and washing and drying the resulting material. |