Where the degradation controlling {HEAD ~ agent} is dispersed in the matrix material, the agent represents between about 0.1% to about 40% by weight of {TAIL ~ the matrix material} 
Where the degradation controlling { HEAD ~ agent } is dispersed in the matrix material , the agent represents between about 0.1 % to about 40 % by weight of { TAIL ~ the matrix material }
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL