Patent ID: 6555230
Filing Date: 2003-04-29
Classification: C08G,D06N,Y10T

Abstract:
Artificial leather having a base sheet and at least one resin layer arranged on at least one side of said base sheet, wherein said resin layer comprises a polyurethane having side chains derived from a fluorine-containing diol represented by the following formula (I): wherein Rf represents a perfluoroalkyl or perfluoroalkenyl group having 1 to 20 carbon atoms; X represents a substituted or unsubstituted alkylene group having 1 to 10 carbon atoms, a substituted or unsubstituted alkenylene group represented by â€”CH&boxH;CHâ€”(CH2)nâ€” in which n stands for an integer of from 1 to 10, or in which n stands for an integer of from 0 to 6; Y represents a direct bond, â€”Oâ€”, â€”NHâ€”, or â€”R0â€”NHâ€” in which R0 is an alkylene group having 1 to 6 carbon atoms; Z represents a direct bond or â€”N(Râ€²)Râ€” in which R is an alkylene group having 1 to 20 carbon atoms and Râ€² is a hydrogen atom or an alkyl group having 1 to 6 carbon atoms; R1 and R2 each independently represent a divalent organic group; and R3 represents a residual group of an aliphatic, alicyclic or aromatic diisocyanate.