Polyfluoroalkyl phosphoric acid ester or salt thereof, and mold-releasing agent comprising the same as an active ingredient

Abstract

A polyfluoroalkyl phosphoric acid ester represented by the general formula [CnF2n+1(CH2CF2)a(CF2CF2)b(CH2CH2)cO]mP(O)(OH)3−m [I] n: 1 to 6, a: 1 to 4, b: 1 to 3, c: 1 to 3, m: 1 to 3) or a salt thereof. The polyfluoroalkyl phosphoric acid ester represented by the general formula [I] is produced by subjecting a polyfluoroalkyl alcohol represented by the general formula CnF2n+1(CH2CF2)a(CF2CF2)b(CH2CH2)2OH [II] (n: 1 to 6, a: 1 to 4, b: 1 to 3, c: 1 to 3) to a dehydration condensation reaction with phosphoric acid. The polyfluoroalkyl phosphoric acid ester can be easily synthesized without passing through dialkyl ester as in the case of phosphonic acid, and used for a mold-releasing agent comprising the same or a salt thereof as an active ingredient.

Dependencies are inferred from the claim text.