In a second embodiment of this invention, the crosslinkable or crosslinked composition includes a polyene having {HEAD ~ at least two hydrosilation reactive carbon carbon double bonds}, besides the unsaturated elastomeric polymer, and {TAIL ~ the indicated hydrosilation catalyst and silicon compound} 
In a second embodiment of this invention , the crosslinkable or crosslinked composition includes a polyene having { HEAD ~ at least two hydrosilation reactive carbon carbon double bonds } , besides the unsaturated elastomeric polymer , and { TAIL ~ the indicated hydrosilation catalyst and silicon compound }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL