Patent ID: 7141684

Claim:
Diepoxide esters or ethers having the formulas: where Ar is a trivalent aromatic radical of 6–20 carbon atoms, Ar′ is a bridged diaromatic radical having the formula Ar—Y—Ar and Y is O, CO, S, SO 2 , —(CH 2 )y , or —C(R″) 2 — and y is from 0 to 6, and R and R′ are the same or different alkyl, alkylene aryl, aryl, arylene alkyl, alkylene alkoxy, alkylene aryloxy, arylene alkoxy and arylene aryloxy radical having from 6–20 carbon atoms, X is —R, —COR, —COOR, —SO 2 R, PORR′ and R″ is methyl.