The etherified diphenols of U.S. Pat. No. 3,787,526 have the formula: ##STR9## wherein z is 0 or 1; R is an alkylene radical containing from 1 to 5 carbon atoms, a sulfur atom, an oxygen atom, or a radical characterized by the formula: ##STR10## R1 is an ethylene or propylene radical; x and y are integers with the proviso that the sum of x and y in said polyol blend is an average of from about 2.0