Hydrophobic coating compositions and articles coated with said compositions
AssigneeCytonix Corporation
InventorJames F. Brown
Life of this patent
Estimating the term…
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 fluorinated component and an adhesion promoter compound. The adhesion promoter compound can include an alkoxy group, a furfuryl-containing ring structure, and a reactive group.
Claims18
A composition of matter comprising a first reactant, a linkage reactant, and a first functionalized reactant,
- the first reactant comprising at least one perfluoroalkyl group or segment and at least two hydroxyl groups,
- the linkage reactant being capable of linking the first reactant and the first functionalized reactant by a first reaction mechanism,
- the first functionalized reactant comprising a hydroxyl group and three or more inducible reactive groups that are capable of activation by a second reaction mechanism that differs from the first reaction mechanism, wherein each of the three or more inducible reactive groups comprises an acrylate group or a methacrylate group, and
- the remainder of the composition comprising optional solvents, catalysts, additives, fluorinated reactants, and other functionalized reactants that are capable of reacting by the second reaction mechanism, wherein
- the composition comprises the first reactant in an amount sufficient to form a surface having a surface energy of about 22 dynes/cm or lower at 20° C. after reaction by the first and second reaction mechanisms.
A composition of matter comprising a first reaction product, the first reaction product being a product of a reaction between a first reactant, a linkage reactant, and a first functionalized reactant, wherein
- the first reactant comprises at least one perfluoroalkyl group or segment and at least two hydroxyl groups,
- the linkage reactant is capable of linking together the first reactant and the first functionalized reactant by a first reaction mechanism,
- the first functionalized reactant comprises (i) a hydroxyl group, and (ii) a group comprising at least three acrylate groups or methacrylate groups,
- the remainder of the composition comprises optional ingredients selected from solvents, catalysts, additives, fluorinated or organic reactants, other reactants comprising reactive linkage groups, and additional functionalized reactants, and
- the first reaction product comprises the first reactant in an amount sufficient to form a surface, upon polymerization of the first reaction product by a second reaction mechanism, having a surface energy of about 22 dynes/cm or lower at 20° C.
Dependencies are inferred from the claim text.