US 12,280,878 B2
Ice protection coating and bonding methods thereof
Edward Brouwers, Havertown, PA (US); Andrew Nowak, Los Angeles, CA (US); Dimitrios Priftis, Mt. Pleasant, SC (US); Michael Jared Ventuleth, Camarillo, CA (US); and Kenneth W. Young, Bear, DE (US)
Assigned to The Boeing Company, Arlington, VA (US)
Filed by The Boeing Company, Chicago, IL (US)
Filed on Feb. 17, 2022, as Appl. No. 17/674,566.
Claims priority of provisional application 63/158,735, filed on Mar. 9, 2021.
Prior Publication US 2022/0289392 A1, Sep. 15, 2022
Int. Cl. B64D 15/00 (2006.01); C09D 175/04 (2006.01); C09J 163/00 (2006.01); C09K 3/18 (2006.01)
CPC B64D 15/00 (2013.01) [C09D 175/04 (2013.01); C09J 163/00 (2013.01); C09K 3/18 (2013.01); C09J 2203/35 (2020.08); C09J 2301/302 (2020.08)] 21 Claims
OG exemplary drawing
 
1. An airfoil comprising:
an exterior substrate surface; and
a coating layer adjacent to the exterior substrate surface;
wherein the coating layer comprises an icephobic coating composition comprising:
a first polymer;
a second polymer that is a fluoropolymer;
an isocyanate; and
a curative;
wherein the coating layer is bonded to the airfoil via an intermediate adhesive layer; and
wherein the coating layer has a bottom surface, and wherein the bottom surface has an RMS surface roughness of about 1 micron or greater before the coating layer is bonded to the exterior substrate surface.