Patent ID: 8450432
Filing Date: 2013-05-28
Classification: C08G,G03G

Abstract:
1. A polyurethane elastomer composition for electrophotographic printing comprising: a polyester polyol (A) obtained by polycondensing a polyvalent carboxylic acid (A-1) containing sebacic acid as a main component and a polyhydric alcohol ((A-2) selected from the following (I) to (III): (I) a linear glycol having 2 to 4 carbon atoms, (II) a linear glycol having 2 to 4 carbon atoms and a glycol having 2 to 4 carbon atoms with an alkyl side chain, (III) a linear glycol having 2 to 4 carbon atoms and 1,6-hexane diol; a polyisocyanate compound (B); and a mixture (C) of a short-chain diol and a short-chain triol, wherein the ester group concentration of the polyester polyol (A) is more than 8 mmol/g.