Hydrophobic Materials Made By Vapor Deposition Coating and Applications Thereof

• US 20140147655A1
• Filed: 02/04/2014
• Published: 05/29/2014
• Est. Priority Date: 06/08/2009
• Status: Abandoned Application

• Current Assignee: Innovanano Incorporated
• Original Assignee: Innovanano Incorporated
• Inventors: Dong, He, Yuan, Jikang
• Application Number:
  US14/171,985
• Publication Number:
  US 20140147655A1
• Time in Patent Office: Days
• US Class Current: 428/312.6
• CPC Class Codes: B01D 17/045 with coalescers
• CPC Class Codes: B01D 17/048 by changing the state of aggregation
• CPC Class Codes: C02F 1/288 using composite sorbents, e.g. coated, impregnated, multi-layered
• CPC Class Codes: C02F 1/681 by addition of solid materials for removing an oily layer on water
• CPC Class Codes: C02F 2101/32 Hydrocarbons, e.g. oil
• CPC Class Codes: C02F 2103/322 from vegetable oil production, e.g. olive oil production
• CPC Class Codes: C04B 14/047 Zeolites
• CPC Class Codes: C04B 14/06 Quartz; Sand
• CPC Class Codes: C04B 14/08 Diatomaceous earth
• CPC Class Codes: C04B 14/10 Clay sepiolite C04B14/042; grog C04B18/025
• CPC Class Codes: C04B 14/104 Bentonite, e.g. montmorillonite
• CPC Class Codes: C04B 14/16 porous, e.g. pumice
• CPC Class Codes: C04B 14/18 Perlite
• CPC Class Codes: C04B 14/185 expanded
• CPC Class Codes: C04B 14/204 expanded
• CPC Class Codes: C04B 14/30 Oxides other than silica ferrites C04B14/363
• CPC Class Codes: C04B 20/0076 characterised by the grain distribution
• CPC Class Codes: C04B 20/06 Expanding clay, perlite, vermiculite or like granular materials
• CPC Class Codes: C04B 20/1051 Organo-metallic compounds; Organo-silicon compounds, e.g. bentone
• CPC Class Codes: C04B 41/009 characterised by the material treated
• CPC Class Codes: C04B 41/4529 : applied from the gas phase
• CPC Class Codes: C04B 41/4584 : Coating or impregnating of particulate or fibrous ceramic material C04B20/10, C04B35/628 take precedence
• CPC Class Codes: C04B 41/488 : Other macromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds
• CPC Class Codes: C04B 41/4961 : Polyorganosiloxanes, i.e. polymers with a Si-O-Si-O-chain; "silicones"
• CPC Class Codes: Y10T 428/249969 : Of silicon-containing material [e.g., glass, etc.]
• CPC Class Codes: Y10T 428/265 : 1 mil or less
• CPC Class Codes: Y10T 428/31663 : As siloxane, silicone or silane

Abstract

Methods are provided for vapor deposition coating of hydrophobic materials and applications thereof. The method for making a hydrophobic material includes providing a natural mineral, providing a silicone-based material, heating the silicone-based material to release vaporous molecules of the silicone-based material, and depositing the vaporous molecules of the silicone-based material to form a layer of the silicone-based material on surfaces of the natural mineral.

Claims

1-29. -29. (canceled)

30. A material having a hydrophobic surface, comprising:

a natural mineral comprising perlite or vermiculite; and

a silicone-based material comprising vulcanized network of polymerized siloxane, wherein the silicone-based material is coated on the natural mineral through a process of vapor deposition forming a hydrophobic layer.

31. The material of claim 30, wherein the natural mineral exhibits internal and external surfaces coated with the hydrophobic layer.

32. The material of claim 30, wherein the hydrophobic layer is less than about 20 nanometers in thickness.

33. The material of claim 30, wherein the perlite or vermiculite is heated to an expanded form.

34. The material of claim 30, wherein the natural mineral further comprises pumice.

35. The material of claim 30, wherein the natural mineral further comprises one or more of diatomite, bentonite and zeolite.

36. The material of claim 30, wherein the natural mineral comprises one or more of silicon dioxide, aluminum oxide, silicate, aluminate and carbonate.

37. The material of claim 30, wherein the silicone-based material comprises a vulcanized network of polydimethylsiloxane (PDMS).

38. The material of claim 30, wherein the natural mineral has:

a grain size from about 0.01 mm to about 10 cm;

a pore size in the grain of the natural mineral from about 1 nm to about 1 cm;

a surface area from about from about 0.1 m²/g to about 100 m²/g; and

a bulk density from about 0.02 g/cm³ to about 2 g/cm³.