Composition and coating for hydrophobic performance
First Claim
Patent Images
1. A coating composition giving rise to a hydrophobic coating, the coating composition comprising:
- an acrylic binder, nano-particles from about 8 nm to about 100 nm associated covalently or non-covalently with alkyl or fluoroalkyl groups, and a solvent, where the solvent comprises a compound selected from the group consisting of acetone, t-butylacetate and/or combinations thereof;
wherein the acrylic binder comprises;
a MMA polymer or copolymer;
a BMA polymer or copolymer;
an EMA polymer or copolymer;
a MMA/BMA copolymer;
a MMA/EMA copolymer;
or a BMA/EMA copolymer; and
wherein when the composition is applied at a rate of 1 liter per 2.5 square meters, such application being divided into a series of five spray applications, each such spray application comprising one-fifth (0.2 liters) of the total composition, the composition dries within sixty seconds following each spray to form a coating that does not transfer to, or stick to, a surface brought in contact with the hydrophobic coating, if the solvent in the composition is allowed to freely evaporate in the absence of heating or forced air circulation.
4 Assignments
0 Petitions
Accused Products
Abstract
The present disclosure describes compositions comprising an acrylic polymer binder and nano-particles less than about 100 nm that provide a hydrophobic or superhydrophobic coating that may also display oleophobicity. The coating composition may advantageously be prepared using VOC exempt compounds that are compatible with a variety of surface materials including many electronic components. In addition, the coating composition may also be rapidly dried rendering it useful for the rapid preparation of coated objects and surfaces in manufacturing/assembly line environments.
595 Citations
22 Claims
-
1. A coating composition giving rise to a hydrophobic coating, the coating composition comprising:
- an acrylic binder, nano-particles from about 8 nm to about 100 nm associated covalently or non-covalently with alkyl or fluoroalkyl groups, and a solvent, where the solvent comprises a compound selected from the group consisting of acetone, t-butylacetate and/or combinations thereof;
wherein the acrylic binder comprises;
a MMA polymer or copolymer;
a BMA polymer or copolymer;
an EMA polymer or copolymer;
a MMA/BMA copolymer;
a MMA/EMA copolymer;
or a BMA/EMA copolymer; andwherein when the composition is applied at a rate of 1 liter per 2.5 square meters, such application being divided into a series of five spray applications, each such spray application comprising one-fifth (0.2 liters) of the total composition, the composition dries within sixty seconds following each spray to form a coating that does not transfer to, or stick to, a surface brought in contact with the hydrophobic coating, if the solvent in the composition is allowed to freely evaporate in the absence of heating or forced air circulation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
- an acrylic binder, nano-particles from about 8 nm to about 100 nm associated covalently or non-covalently with alkyl or fluoroalkyl groups, and a solvent, where the solvent comprises a compound selected from the group consisting of acetone, t-butylacetate and/or combinations thereof;
Specification