{HEAD ~ The polyhydroxy component A}) according to the invention is {TAIL ~ a linear or branched compound} having at least 2 hydroxyl groups in the molecule and containing from 0.1 to 20 wt %, preferably from 0.2 to 10 wt % and particularly preferably from 0.4 to 6 wt % of hydroxyl groups 
{ HEAD ~ The polyhydroxy component A } ) according to the invention is { TAIL ~ a linear or branched compound } having at least 2 hydroxyl groups in the molecule and containing from 0.1 to 20 wt % , preferably from 0.2 to 10 wt % and particularly preferably from 0.4 to 6 wt % of hydroxyl groups
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH