{HEAD ~ The isotropic pitch product}, which contains mesogens and {TAIL ~ soluble, aromatic organometallic compounds}, as formed by heat soaking or mixing as taught above is subjected to solvent fractionation to produce, after fusion, a metals containing mesophase pitch suitable for spinning into carbon artifacts or fibers 
contains
{ HEAD ~ The isotropic pitch product } , which contains mesogens and { TAIL ~ soluble , aromatic organometallic compounds } , as formed by heat soaking or mixing as taught above is subjected to solvent fractionation to produce , after fusion , a metals containing mesophase pitch suitable for spinning into carbon artifacts or fibers
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL OTH OTH 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