Patent ID: 7909965
Filing Date: 2011-03-22
Classification: D21F,Y10S

Abstract:
1. A shoe press belt, comprising a reinforcing fiber base and a polyurethane layer that are integral with each other, the reinforcing fiber base being embedded in the polyurethane layer, wherein: the polyurethane layer comprises a polyurethane produced by curing a mixed composition of a urethane prepolymer (A) and an active hydrogen group (H) containing curing agent (B); the urethane prepolymer (A) has a terminal isocyanate group, and is obtained by reacting an isocyanate compound (a) with polytetramethylene glycol (b); the isocyanate compound (a) comprises 55 to 100 molar % of p-phenylene diisocyanate; and the curing agent (B) comprises 85 to 99.9 molar % of 1,4-butanediol and 15 to 0.1 molar % of an aromatic polyamine including the active hydrogen group (H).