Christopher J Sanchez

US Patent:

20230105663, Apr 6, 2023

Filed:

Dec 8, 2022

Appl. No.:

18/078053

Inventors:

- Albuquerque NM, US
Jan-Michael Gosau - Albuquerque NM, US
Christopher Sanchez - Albuquerque NM, US

Assignee:

Lotus Leaf Coatings, Inc. - Albuquerque NM

International Classification:

C09D 5/00
C09D 183/08
C09D 183/06
C09D 7/40
G02B 1/18

Abstract:

Compositions for rendering a hydrophobic surface hydrophilic and methods for manufacturing them and applying them to objects such as contact lenses. A hydrophobic binder, typically a silicone compound such as a siloxane, selectively attaches hydrophilic solution-produced nanoparticles to the surface, such as hydrophobic regions of a silicone contact lens. Hydrophilic regions are preferably unmodified. The binder attaches to the particles via functional groups in solution and can autoadhere to the hydrophobic surface. A coating of the composition can be deposited from solution at ambient or room temperature, allowing coating of temperature sensitive substrates. Such coatings can withstand heating (such as for sterilization) in acidic solutions or heat sensitive solutions, retaining their hydrophilic properties.

US Patent:

20190359831, Nov 28, 2019

Filed:

Aug 9, 2019

Appl. No.:

16/537458

Inventors:

- Albuquerque NM, US
Jan-Michael Gosau - Albuquerque NM, US
Christopher Sanchez - Albuquerque NM, US

Assignee:

Lotus Leaf Coatings, Inc. - Albuquerque NM

International Classification:

C09D 5/00
C09D 183/08
C09D 183/06
C09D 7/40
G02B 1/18

Abstract:

Compositions for rendering a hydrophobic surface hydrophilic and methods for applying them to objects such as contact lenses. A hydrophobic binder, typically a silicone compound such as a siloxane, selectively attaches hydrophilic solution-produced nanoparticles to the surface, such as hydrophobic regions of a silicone contact lens. Hydrophilic regions are preferably unmodified. The binder attaches to the particles via functional groups in solution and can autoadhere to the hydrophobic surface. A coating of the composition can be deposited from solution at ambient or room temperature, allowing coating of temperature sensitive substrates. Such coatings can withstand heating (such as for sterilization) in acidic solutions or heat sensitive solutions, retaining their hydrophilic properties.

US Patent:

20170240770, Aug 24, 2017

Filed:

Feb 23, 2017

Appl. No.:

15/440776

Inventors:

- Albuquerque NM, US
Jan-Michael Gosau - Albuquerque NM, US
Christopher Sanchez - Albuquerque NM, US

International Classification:

C09D 183/08
G02C 7/04
G02B 1/18
G02B 1/04
C08J 7/04
C09D 5/00

Abstract:

A composition for rendering a hydrophobic surface hydrophilic. A hydrophobic binder, typically a silicone compound such as a siloxane, attaches hydrophilic sol-gel particles to the surface, such as hydrophobic regions of a silicone contact lens. Hydrophilic regions are preferably unmodified. The binder attaches to the particles via functional groups, and can autoadhere to the hydrophobic surface. A coating of the composition can be deposited from solution at ambient or room temperature, allowing coating of temperature sensitive substrates. Such coatings can withstand heating (such as for sterilization) in acidic solutions, retaining their hydrophilic properties.