In certain embodiments, the methods further comprise hydrolyzing the dibasic ester to form a dibasic acid.

In some embodiments, the methods comprise forming a dibasic ester or dibasic acid prior to the isomerizing step.

The grind resin comprises a reaction product of a dibasic acid, optionally a polybasic acid, a diol, optionally a polyol, and a fatty compound.

Dissolved in water, it forms a very weak dibasic acid that is sometimes called hydrosulfuric acid.

Dissolved in water, it forms a very weak dibasic acid that is sometimes called hydro sulfuric acid.