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| Number | Title | Issue Date |
| 7220869 | Brønsted acidic room temperature ionic liquids each having a -protonated lactam cation and method for preparing the same The invention relates to a class of novel Brønsted acidic ionic liquids each having a lactam cation, and to a method for preparing the same through simple neutralization reaction of a lactam, which is available in large scale from industry, with a Brønsted inorgan... | 05/22/2007 |
