According to the invention the active composite is made up of {HEAD ~ a series} of {TAIL ~ sheets} superposed one above the other, the active agent being dispersed in the flakes 
of
According to the invention the active composite is made up of { HEAD ~ a series } of { TAIL ~ sheets } superposed one above the other , the active agent being dispersed in the flakes
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH