Hydrophobic coating compositions, articles coated with said compositions, and processes for manufacturing same
AssigneeCytonix Corporation
InventorsJames F. Brown, Richard A. Schneider
Life of this patent
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Abstract
Hydrophobic coating compositions are provided as are processes to coat articles with the compositions. Extremely hydrophobic coatings are provided by the compositions. Durable, weatherable and scratch-resistant coatings are provided by compositions comprising a trifluoromethyl-containing component and a hardenable material. Processes are also provided for forming hydrophobic coatings on articles without any substantial loss of fluorocarbon solvent used in the coating composition. Articles are coated on a surface thereof with a hydrophobic coating reactant or reaction product which forms a coating having an exposed surface populated with 30% by area or more terminal trifluoromethyl groups.
Claims16
A composition comprising (i) a fluorosilane, (ii) a fluorinated acid anhydride or fluoroanhydride, and (iii) a fluorinated solvent, and (iv) a trifluromethyl group-containing agent
- said composition capable of providing a coating having an exposed coating surface area populated with at least about 30% by area trifluoromethyl groups and a surface energy of about 22 dynes/cm or lower at 20° C.
An operational surface coated with a composition comprising a fluorinated reactant having from about 3 to about 20 carbon atoms and at least one trifluoromethyl group, or a reaction product thereof, said composition further comprising a second component, said second component comprising a hardenable material, said composition capable of forming a coating having an exposed coating surface area populated with at least about 15% by area trifluoromethyl groups and a surface energy of about 22 dynes/cm or lower at 20° C. wherein the operational surface is grooved, cross-hatched, or striated, including physical features having dimensions smaller than about 100 microns.
Dependencies are inferred from the claim text.