| abstract |
A leather-like sheet material is manufactured by coating a polymer solution, which contains a major proportion of a polyurethane elastomer, onto a supporting base, coagulating the polymer by dipping the coated base into a non-solvent so as to form a first layer which retains a portion of said non-solvent, coating a second polymer solution which contains a major proportion of a polyurethane elastomer, which solution may be the same or different from the first solution, onto said first coagulated layer, applying a fibrous substrate to the second polymer solution layer, dipping said coated substrate into a nonsolvent to coagulate the second layer, and peeling a product of said coagulated layers and fibrous substrate from said supporting base. |