Minnesota Mining and Manufacturing Company

Joseph Dana McCown

Myron T Pike

A new class of hybrid copolymers which confer improved spray rating, resistance to staining, particularly aqueous stains and improved resistance to crocking on surfaces is obtained from (I) fluoroaliphatic radical-containing component in combination with (II) hydrocarbyl radical-containing component together conferring controlled oleophobicity and hydrophobicity in air and (III) a balanced combination of hydrophilic components conferring oleophobicity in water.

Fabrics treated with hybrid tetracopolymers and process

Terpolymers of N-alkyl perfluoroalkanesulfonamidoalkyl (meth)acrylate, higher alkyl (meth)acrylate and polyoxyalkylene glycol mono- to bis-(meth)acrylates in a prescribed range of concentrations provide useful solubilities in organic solvents including aliphatic, cycloaliphatic and aromatic hydrocarbons with minimal formation of foams. Textiles and surfaces coated with the terpolymers show desirable oleophobicity.

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Maplewood, MN, United States of America

Joseph Dana McCown