Invention Grant
- Patent Title: Ultraviolet protective coating for fabricating epoxy-based components
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Application No.: US16706889Application Date: 2019-12-09
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Publication No.: US11326064B2Publication Date: 2022-05-10
- Inventor: Loren F. Gibson , Nelson N. Akwari , Heath D. Kaufman
- Applicant: The Boeing Company
- Applicant Address: US IL Chicago
- Assignee: The Boeing Company
- Current Assignee: The Boeing Company
- Current Assignee Address: US IL Chicago
- Agency: Kwan & Olynick LLP
- Main IPC: C09D5/32
- IPC: C09D5/32 ; C09D175/04

Abstract:
Provided are epoxy-based components and methods of fabricating such components. Specifically, an component comprises an epoxy-based composite part and a UV protective coating disposed over the part. This coating allows for the component to be exposed to UV radiation without any additional coating and without deterioration of the epoxy-based composite part. Specifically, the component may be exposed to interior lights and direct sun during its subsequent fabrication and/or transportation. The UV protective coating comprises polyurethane and silicate filler, such as hydrated aluminum silicate and/or hydrated magnesium silicate. The coating may have a transmittance of less than 1% or even less than 0.1% in the UV range. An epoxy primer layer may be formed directly over the UV protective coating followed by various other coatings, including a decorative finish.
Information query
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