Patent ID: 6967258

Claim:
A method for producing a quaternary ammonium 2-hydroxyisobutyrate, which comprises: a step of reacting a tertiary amine represented by the following Formula 2: wherein R 4 , R 5 and R 6 are the same or different, and ach is alkyl, alkenyl or aryl, each optionally having a substituent group, a pair of R 4 , R 5 and R 6 being optionally bonded to form an aliphatic or aromatic ring together with nitrogen to which the pair are bonded, or one of R 4 , R 5 and R 6 being optionally bonded to the other two to form two-ring structure, with methyl 2-hydroxyisobutyrate, thereby producing the quaternary ammonium 2-hydroxyisobutyrate represented by the following Formula 3: wherein R 4 to R 6 are the same as defined above.