Nanotextured super or ultra hydrophobic coatings
AssigneeInnovative Surface Technology, Inc.
InventorsLaurie R. Lawin, Patrick Guire, Jie Wen, Kristin Taton
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Abstract
The invention describes compositions that include a polymer having a water contact angle of between about 120° and about 150° or greater adhered to a 1 nm to about a 25 micron diameter sized particle optionally with an oxide layer. In particular, the particle is a silica and one which has been pretreated with a silane.
Claims17
An ultrahydrophobic or superhydrophobic coating composition selected from the group of a homopolymer or copolymer of a polyalkylene, a polyacrylate, a polymethacrylate, a polyester, a polyamide, a polyurethane, a polyvinylarylene, a polyvinyl ester, a polyvinylarylene/alkylene copolymer, a polyalkyleneoxide or mixtures thereof, as polymeric binder in combination with particles having a particle size of between about 1 nm to 25 microns and a radical-generating initiator compound,
- wherein the polymer has less than 1 mole percent alkylenic reactive sites of unsaturation.
A substrate coated with an ultrahydrophobic or a superhydrophobic composition comprising a polymer that is a homopolymer or copolymer selected from the group of a polyalkylene, a polyacrylate, a polymethacrylate, a polyester, a polyamide, a polyurethane, a polyvinylarylene, a polyvinyl ester, a polyvinylarylene/alkylene copolymer, a polyalkyleneoxide or mixtures thereof as a polymeric binder in combination with particles having a particle size of between about 1 nm to 25 microns and a radical-generating initiator compound,
- wherein the polymer has less than 1 mole percent alkylenic reactive sites of unsaturation.
A cured ultrahydrophobic or superhydrophobic coating, composition selected from the group of a homopolymer or copolymer of a polyalkylene, a polyacrylate, a polymethacrylate, a polyester, a polyamide, a polyurethane, a polyvinylarylene, a polyvinyl ester, a polyvinylarylene/alkylene copolymer, a polyalkyleneoxide or mixtures thereof, as a cured polymeric binder in combination with particles having a particle size of between about 1 nm to 25 microns, wherein the curing was effected by a radical-generating initiator compound contained within the uncured polymeric binder and wherein the uncured polymeric binder had less than 1 mole percent alkylenic reactive sites of unsaturation.
Dependencies are inferred from the claim text.