Surface material of urethane resin and a method for preparation thereof

The present invention provides a surface material which can be replaced to the conventional surface material made of soft polyvinylchloride resin. These surface material is useful for the various uses such as the material for car interior, the surface material of furniture or the material for porches. The present invention is the urethane resin surface material comprising, a mixed resin sheet composed of 50-95 wt. % of thermoplastic polyurethane and 50-5 wt. % of acrylic soft resin and the Shore A hardness of said urethane resin surface material is 60-80. On one side surface of said mixed resin sheet, a layer of knitted, woven, nonwoven fabric or soft foam sheet can be provided. As said thermoplastic polyurethane resin, the thermoplastic polyurethane resin of Shore A hardness 65-90 is desirable, and as said acrylic soft resin, the acrylic soft resin of Shore A hardness 50-80 is desirable. Further, to said mixed resin, a plasticizer can be blended. Said mixed resin sheet is desirable to be formed to a sheet by calendar processing. At said forming process, for the purpose to improve the calendar processability, (meth)acrylic polymer or calcium carbonate can be blended to the mixed resin, further, 1 to 15 weight parts of melaminecyanurate can be blended to 100 weight parts of said mixed resin.