| http://www.w3.org/ns/prov#value | - diisocyanate, 4,4'-dicycohexylmethane diisocyanate and the like, and polysulfones such as the reaction product of the sodium salt of 2,2-bis(4-hydroxyphenyl) propane and 4,4'-dichlorodiphenyl sulfone, furan resins such as poly(furan), cellulose ester
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