公开(公告)号：US20210331966A1

公开(公告)日：2021-10-28

申请号：US16855303

申请日：2020-04-22

Applicant: Waymo LLC

Inventor： John T. Simpson

IPC: C03C17/00 ,  C03C3/089 ,  C01B33/158 ,  C03C17/23

Abstract: An article including an optically transparent, superomniphobic coating that is durable and relatively easy to keep clean, is disclosed. In one aspect, the present disclosure provides an article comprising a substrate and a graded layer, the graded layer having a first side disposed adjacent the substrate, the first side comprising 45-85 wt. % silicon oxide in a first glass phase and 10-40 wt. % boron oxide in a second glass phase, and opposed the first side, a second side comprising at least 45 wt. % silicon oxide, no more than 5 wt. % boron oxide, and 10-50 wt. % aerogel, the aerogel present in the graded layer as a plurality of distinct domains.

公开(公告)号：US20190264058A1

公开(公告)日：2019-08-29

申请号：US15991873

申请日：2018-05-29

Applicant: Waymo LLC

Inventor： John T. Simpson

IPC: C09D127/12 ,  C09D7/20 ,  C09D7/62 ,  C03C17/00 ,  C03C17/34

Abstract: A composition that is easily applied, clear, well-bonded, and superhydrophobic is disclosed. In one aspect, the composition includes a hydrophobic fluorinated solvent, a binder comprising a hydrophobic fluorinated polymer, and hydrophobic fumed silica nanoparticles. Also disclosed is a structure including a substrate coated with the composition, as well as a method for making the composition and a method of coating a substrate with the composition.

公开(公告)号：US11733432B1

公开(公告)日：2023-08-22

申请号：US17363467

申请日：2021-06-30

Applicant: Waymo LLC

Inventor： John T. Simpson ,  Bryce Remesch

IPC: G02B1/118 ,  G02B1/18 ,  B05D5/02 ,  B05D5/08 ,  B05D5/06 ,  B05D3/00

CPC classification number: G02B1/118 ,  B05D3/007 ,  B05D5/02 ,  B05D5/063 ,  B05D5/08 ,  G02B1/18 ,  B05D2350/60 ,  B05D2401/10 ,  G02B2207/101 ,  G02B2207/109

Abstract: An article including a durable, optically transparent, and superhydrophobic coating is described. In one aspect, the present disclosure provides a coating comprising a layer of aerogel disposed interstitially between spaced features extending in a direction perpendicular to a major surface of the coating, the spaced features having an average height of between 200-5000 nm and an average spacing of between 10-2000 nm, and comprising at least 75 wt. % of one or more of crystalline or amorphous silicon, an inorganic oxide, a polymer, crystalline or amorphous carbon, a carbide, or a nitride.

公开(公告)号：US11603329B2

公开(公告)日：2023-03-14

申请号：US16855378

申请日：2020-04-22

Applicant: Waymo LLC

Inventor： John T. Simpson

IPC: C23C14/00 ,  C03C17/02 ,  C23C14/10 ,  C23C14/06 ,  C23C14/02 ,  C03C15/00 ,  C03C17/34 ,  C03C17/42 ,  C23C14/34

Abstract: A method for preparing an optically transparent, superomniphobic coating on a substrate, such as an optical substrate, is disclosed. The method includes providing a glass layer disposed on a substrate, the glass layer having a first side adjacent the substrate and an opposed second side, the glass layer comprising 45-85 wt. % silicon oxide in a first glass phase and 10-40 wt. % boron oxide in a second glass phase, such that a glass layer has a composition in a spinodal decomposition region. The method further includes heating the second side of the glass layer to form a phase-separated portion of the layer, the phase-separated portion comprising an interpenetrating network of silicon oxide domains and boron oxide domains, and removing at least a portion of the boron oxide domains from the phase-separated portion to provide a graded layer disposed on the substrate. The graded layer has a first side disposed adjacent the substrate, the first side comprising 45-85 wt. % silicon oxide and 10-40 wt. % boron oxide, and opposite the first side, a porous second side comprising at least 45 wt. % silicon oxide and no more than 5 wt. % boron oxide.

公开(公告)号：US20220356366A1

公开(公告)日：2022-11-10

申请号：US17874848

申请日：2022-07-27

Applicant: Waymo LLC

Inventor： John T. Simpson

IPC: C09D127/12 ,  C09D7/20 ,  C09D7/62 ,  C03C17/00 ,  C03C17/34 ,  B05D1/00 ,  B05D3/14 ,  B05D5/08 ,  B05D7/24 ,  B05D7/00 ,  C08L27/12

Abstract: A composition that is easily applied, clear, well-bonded, and superhydrophobic is disclosed. In one aspect, the composition includes a hydrophobic fluorinated solvent, a binder comprising a hydrophobic fluorinated polymer, and hydrophobic fumed silica nanoparticles. Also disclosed is a structure including a substrate coated with the composition, as well as a method for making the composition and a method of coating a substrate with the composition.

公开(公告)号：US11155490B1

公开(公告)日：2021-10-26

申请号：US16855303

申请日：2020-04-22

Applicant: Waymo LLC

Inventor： John T. Simpson

IPC: B32B15/04 ,  C03C17/00 ,  C03C3/089 ,  C01B33/158 ,  C03C17/23

Abstract: An article including an optically transparent, superomniphobic coating that is durable and relatively easy to keep clean, is disclosed. In one aspect, the present disclosure provides an article comprising a substrate and a graded layer, the graded layer having a first side disposed adjacent the substrate, the first side comprising 45-85 wt. % silicon oxide in a first glass phase and 10-40 wt. % boron oxide in a second glass phase, and opposed the first side, a second side comprising at least 45 wt. % silicon oxide, no more than 5 wt. % boron oxide, and 10-50 wt. % aerogel, the aerogel present in the graded layer as a plurality of distinct domains.