Minnesota Mining and Manufacturing Company

3M Innovative Properties Company

Johan E De Witte

Rudolf J Dams

George G I Moore

William M Lamanna

Michael S Terrazas

Franz Mosch

Michael A Bernheim

Hans-Burkhardt Vogel

Erich K Rossler

Described are monomeric fluorochemical surfactants having two perfluoroalkyl sulfonamido segments and two hydrophilic group, which are more efficient and effective in lowering the surface tension of organic solvents and water compared to other C-based fluorochemical surfactants.

Compositions of fluorochemical surfactants

Fluorochemical compositions comprising fluorinated compounds, wherein the fluorinated compound comprises fluorochemical oligomeric portion, an organic moiety, and a group that can impart soft hand, stain release, water repellency, or a durable property when the compound is applied to a fibrous substrate, wherein the fluorochemical oligomeric portion is bonded to the organic moiety through an isocyanate-derived linking group. Also disclosed are fluorochemical compositions in the form of fluorochemical liquid dispersions and methods for preparing substrates treated with such compositions. Substrates so treated exhibit particularly durable and abrasion-resistant oil and water repellent properties. Intermediates in the preparation of the fluorochemical compositions are also disclosed. Some of the intermediates are useful as emulsifiers in fluorochemical liquid dispersions.

Isocyanate derivatives comprising flourochemical oligomers

An aqueous finishing agent for providing fibrous materials with a soft water and oil repellent treatment is provided. The finishing agent comprises

Aqueous finishing agent and process for a soft hand, water and oil

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Westmalle, Belgium

Johan E De Witte