Patent ID: 9610634
Date: 2017-04-04
CPC Classifications: A01N,B22C,B29C,B29K,C08G,C08K,C08L

Claim:
1. An aqueous emulsion comprising, as an emulsifier, 0.01 to 30 parts by weight of a perfluoroalkylethyl phosphonic acid salt represented by the general formula: wherein M 1 is a hydrogen atom or unsubstituted ammonium salt, M 2 is an unsubstituted ammonium salt, and n is an integer of 1 to 6, based on 100 parts by weight of a perfluoropolyether oil represented by the general formula: wherein Rf and Rf′ are perfluoro-lower alkyl groups having 1 to 5 carbon atoms and m is an integer of 2 to 200, said perfluoroalkylethyl phosphonic acid salt and perfluoropolyether oil being dispersed in water or an aqueous solution to form the aqueous emulsion.