Sorry, I don't have Cinema 4d, so I don't know how to do it in that program. I use trueSpace and in that one there's a tool which converts NURBS patches into polygonal objects. Maybe you could try to ask about this in the Cinema 4d forum. Or you can send me the object and I can try to convert it and also look at it in UVMapper. If you want to do this, send me an IM and I'll tell you my e-mail address.