Patent ID: 7922869

Claim:
A shoe press belt comprising: a substrate having surfaces on a shoe side thereof and a felt side thereof; and a polyurethane resin impregnated and laminated on the surfaces of both the shoe side and the felt side of the substrate, wherein the polyurethane resin is obtained by reacting a mixed prepolymer with a dimethyl-thio-toluenediamine curing agent, wherein the mixed prepolymer consists of (1) a TDI prepolymer which is obtained by reacting a tolylene diisocyanate (TDI) with a polyol and has an isocyanate group at the end, and (2) an MDI prepolymer which is obtained by reacting diphenylmethane diisocyanate (MDI) with a polyol and has an isocyanate group at the end, wherein the TDI prepolymer and the MDI prepolymer are mixed at such a ratio that the polyurethane resin on the shoe side has an MDI molar content of 60 to 95% and the polyurethane resin on the felt side has an MDI molar content of 5 to 50%.