Fluoroaliphatic copolymers
AssigneeMinnesota Mining and Manufacturing Company
InventorJoseph Dana McCown
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Abstract
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.
Claims7
A hybrid tetracopolymer consisting essentially of the polymer of 40-70% fluooroaliphatic radical containing acrylate or methacrylate, 5-15% of an acrylate or methacrylate of alkyl of 1-4 carbon atoms, 20-30% polyoxyethylene acrylate or methacrylate methacrylate and 5 to 15% of an acrylate or methacrylate of polyoxypropylene or polyoxytetramethylene.
Dependencies are inferred from the claim text.