Patent ID: 7220714

Claim:
A composition for removing residues from the microstructure of an object comprising: carbon dioxide; an additive for removing the residues; an inhibitor for suppressing residues; and a co-solvent for dissolving said additive and said inhibitor in said carbon dioxide at a pressurized fluid condition, wherein the inhibitor comprises a polyhydric alcohol, wherein polyhydric alcohol is a dihydric alcohol, wherein the dihydric alcohol is selected from ethylene glycol, propylene glycol, trimethyleneglycol, diethyleneglycol, dipropyleneglycol, 1,2-butanediol, 1,2-butanediol, 1,4-butanediol, 2,3-butanediol, pentamethyleneglycol, hexyleneglycol, octyleneglycol, and mixtures thereof, and wherein the dihydric alcohol comprises propylene glycol.