Patent ID: 7335319

Claim:
An edge bead remover composition comprising: at least one ketone selected from the group consisting of: wherein R 1 and R 2 are independently selected from the group consisting of: methyl, ethyl, n-propyl, and combinations thereof, wherein n equals 1 or 2, and wherein said ketone of said Formula 1 has a total of 4 to 5 carbon atoms; at least one ester other than lactones; and at least one lactone; wherein said at least one ketone is 2-pentanone, present in an amount between 35 wt. % to 50 wt. %; said at least one ester is ethyl lactate, present in an amount between 35 wt. % to 50 wt. %; and said at least one lactone is gamma-butyrolactone, present in an amount between 20 wt. % to 30 wt. %.