US 11,987,021 B2
Multilayer riblet appliques
George Michael Granger, Redmond, WA (US); Mitchell Nakaki, Los Angeles, CA (US); Maribel G. Locsin, Seattle, WA (US); Denise A. Blohowiak, Issaquah, WA (US); and Kelcey D. Sterling, Seattle, WA (US)
Assigned to The Boeing Company, Arlington, VA (US)
Filed by The Boeing Company, Chicago, IL (US)
Filed on Sep. 1, 2021, as Appl. No. 17/463,778.
Prior Publication US 2023/0063783 A1, Mar. 2, 2023
Int. Cl. B32B 25/20 (2006.01); B32B 3/30 (2006.01); B32B 7/12 (2006.01); B32B 25/08 (2006.01); B64C 21/10 (2006.01)
CPC B32B 25/20 (2013.01) [B32B 3/30 (2013.01); B32B 7/12 (2013.01); B32B 25/08 (2013.01); B64C 21/10 (2013.01); B32B 2605/18 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A riblet applique comprising:
a fluorosilicone riblet structure including riblet ridges and a base from which the riblet ridges extend; and
a support layer proximate the fluorosilicone riblet structure, the support layer including:
a vacuum-plasma-treated polymer film having a first surface and a second surface opposite the first surface,
a polymer sub-layer proximate the second surface of the polymer film; and
an aliphatic adhesive between the vacuum-plasma-treated polymer film and the fluorosilicone riblet structure.