N-heterocyclic perfluoroalkylmonocarboxylic acid esters, processes for their manufacture and their use

Abstract

Abstract Perfluoroalkylmonocarboxylic acid esters from ethylene urea epoxides are provided. These esters contain a perfluoro alkyl radical, which is bonded directly or via an alkylene group with 1 to 10 carbon atoms to a carboxyl group. This carboxyl group is bonded in an ester-like manner to an acylic, aliphatic radical substituted in the 2-position to the ester bridge by a free, etherified or esterified hydroxyl group. This latter radical being bonded to a ring nitrogen atom of an ethylene urea radical, which in turn at least by its second ring nitrogen atom is bonded to an acylic aliphatic radical which contains an epoxide group in the terminal position or is linked to an acylic aliphatic radical which is in turn bonded in an esterlike manner to a perfluoroalkyl radical. These fluoro compounds are manufactured from the corresponding perfluoroalkylcarboxylic acids and epoxides and are used for finishing of porous and non-porous substrates, especially for producing oleophobic finishes on textiles.

Inventors

• 👤 Horst Jaeger

Bibliographic Details