公开(公告)号：US20210032498A1

公开(公告)日：2021-02-04

申请号：US16529101

申请日：2019-08-01

Applicant: THE BOEING COMPANY

Inventor： Vijaykumar IJERI ,  Stephen P. GAYDOS ,  Jill E. SEEBERGH ,  Priyanka G. DHIRDE ,  Anand Sawroop KHANNA

IPC: C09D183/06 ,  C09D4/00 ,  C09D7/20 ,  C09D7/61 ,  B05D5/08

Abstract: A hydrophobic-icephobic composition includes a monomer binder, an organic solvent, and a hydrolyzed organosilane. The hydrolyzed organosilane is represented by a formula of R1—Si—(OH)3. The R1 group comprises an alkyl or a haloalkyl having from 3 to 40 carbons. A hydrophobic-icephobic coating over a substrate includes a polymer base and a polyorganosiloxane. The polyorganosiloxane includes —(R1—Si—O2)— units. The R1 group includes an alkyl or a haloalkyl having from 3 to 40 carbons. One or more of the —(R1—Si—O2)— units of the polyorganosiloxane are may be chemically bonded to the substrate.

公开(公告)号：US20250084278A1

公开(公告)日：2025-03-13

申请号：US18656880

申请日：2024-05-07

Applicant: THE BOEING COMPANY

Inventor： Priyanka G. DHIRDE ,  Pradeep Prem Kumar KATTA

IPC: C09D183/04 ,  C09D5/08

Abstract: The present disclosure provides a sol-gel the present disclosure provides a sol-gel that is a cross-linked siloxane. The sol-gel includes a first siloxane unit represented by formula (I): wherein X is an oxygen, R1 is a hydrogen, oxygen, hydroxyl, or silane group, R2 is a hydrogen, hydroxyl, or silane group, each of R3 and R4 is independently linear or branched C1-20 alkyl, C1-20 cycloalkyl, oxysilane, ether, epoxide, aryl alkylfluroide, cycloalkylfluoride, and arylfluoride groups, and n is 1 to 100. The sol-gel includes a second siloxane unit represented by formula (I), wherein the second siloxane unit is different than the first siloxane unit. The sol-gel includes a hydrophobic agent represented by formula (I), wherein the hydrophobic agent comprises at least one alkylflouride group.

公开(公告)号：US20210032477A1

公开(公告)日：2021-02-04

申请号：US16528986

申请日：2019-08-01

Applicant: THE BOEING COMPANY

Inventor： Vijaykumar IJERI ,  Stephen P. GAYDOS ,  Jill E. SEEBERGH ,  Priyanka G. DHIRDE ,  Anand Sawroop KHANNA

IPC: C09D4/00 ,  C08K3/36 ,  C08G63/695 ,  C09D7/20 ,  C09D7/40 ,  B05D5/08

Abstract: In certain aspects, a composition includes a monomer binder, a plurality of silica nanoparticles, a surface energy reducing additive, and a blend of a high polarity solvent and a low polarity solvent. The high polarity solvent has a dipole moment of about 1.2 or greater, and the low polarity solvent has a dipole moment of about 0.7 or less. In certain aspects, a coated substrate includes a substrate and a coating over the substrate. The substrate is selected from a group consisting of glass, polycarbonate, polyacrylate, and polyethylene terepthalate. The coating includes a polymer binder, a plurality of nanoparticles, and a surface energy reducing additive. The coated substrate has a transparency of at least about 80% light transmission at one or more wavelengths in a range of 380 nm to 740 nm.