Cationic and non-ionic fluorochemicals and fibrous substrates treated therewith
AssigneeMinnesota Mining and Manufacturing Company
InventorRichard D. Howells
Life of this patent
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Abstract
Cationic and non-ionic fluorochemicals, mixtures of cationic and non-ionic fluorochemicals, blends of the mixtures with fluorochemical poly(oxyalkylenes), and compositions of the fluorochemicals with hydrocarbon nonionic surfactants are provided. These fluorochemicals and compositions, in dispersions, emulsions and microemulsions, may be applied to porous fibrous substrates to give oil and water repellancy and soil resistance.
Claims7
A cationic fluorochemical comprising one or more monovalent fluoroaliphatic radicals having at least three fully fluorinated carbon atoms, one or more N-containing moieties selected from carbodiimido and urylene, said radicals and moieties being bonded together by heterto atom-containing or organic linking groups, sand linking groups being free of active hydrogen atoms, and an organo amino nitrogen derived cationic moiety, said cationic moiety bonded to said N-containing moiety by hetero atom-containing or organic linking groups.
A non-ionic fluorochemical comprising one or more monovalent fluoroaliphatic radicals having at least three fully fluorinated carbon atoms and one or more urylene moieties, said radicals and moieties being bonded together by hetero atom-containing or organic linking groups, said linking groups being free of active hydrogen atoms, and said non-ionic fluorochemical being a mixture of non-ionic fluorochemicals having an average urylene functionality greater than one.
Dependencies are inferred from the claim text.