| http://www.w3.org/ns/prov#value | - d; 2,2???-biphenyl dicarboxylic acid and isomers thereof; and lower alkyl esters of these acids, such as methyl or ethyl esters; and (ii) glycol monomer materials, such as, for example, propylene glycol; 1,4-butanediol and isomers thereof; 1,6-hexanediol; neopentyl glycol; polyethylene glycol; diethylene glycol; triethylene glycol, 2-butyl 2-ethyl 1,3 propanediol; tricyclodecanediol; 1,4-cyclohexa
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