Patent ID: 8119115

Claim:
A method of inactivating non-enveloped virus particles, the method comprising: contacting non-enveloped virus particles under conditions suitable to inactivate non-enveloped virus particle with a virucidally-enhanced alcoholic composition comprising: a. at least 50 percent by weight of a C 1-6 alcohol, based upon the total weight of the alcoholic composition; and b. an enhancer selected from the group consisting of at least 0.01 percent by weight, based upon the total weight of the alcoholic composition of at least one proton donor, from about 0.25 to about 20 percent by weight, based upon the total weight of the alcoholic composition of at least one chaotropic agent, and mixtures thereof, with the proviso that when the alcoholic composition comprises a proton donor, the composition further comprises a synergistic amount of a cationic oligomer or polymer; thereby inactivating non-enveloped virus particles, wherein said method exhibits at least a 1 log reduction against said non-enveloped virus particles in 60 seconds or less, compared to contacting said particles with a composition containing the same amount of C1-6 alcohol without said enhancer for the same amount of time.