US 11,987,725 B2
Nonaqueous sol-gel for adhesion enhancement of water-sensitive materials
James A. Moore, Gilbert, AZ (US); Daniel W. Huff, Scottsdale, AZ (US); and Dennis K. Kennedy, Mesa, AZ (US)
Assigned to THE BOEING COMPANY, Arlington, VA (US)
Filed by THE BOEING COMPANY, Chicago, IL (US)
Filed on Dec. 12, 2017, as Appl. No. 15/838,614.
Claims priority of provisional application 62/527,358, filed on Jun. 30, 2017.
Prior Publication US 2019/0002705 A1, Jan. 3, 2019
This patent is subject to a terminal disclaimer.
Int. Cl. C09D 5/08 (2006.01); C09D 1/00 (2006.01); C09D 5/00 (2006.01); C09D 7/20 (2018.01); C09D 7/40 (2018.01); C09D 7/63 (2018.01); C09J 5/02 (2006.01); C23C 18/04 (2006.01); C23C 18/12 (2006.01); C23C 22/73 (2006.01)
CPC C09D 5/086 (2013.01) [C09D 1/00 (2013.01); C09D 5/00 (2013.01); C09D 5/08 (2013.01); C09D 7/20 (2018.01); C09D 7/40 (2018.01); C09D 7/63 (2018.01); C09J 5/02 (2013.01); C23C 18/04 (2013.01); C23C 18/1216 (2013.01); C23C 18/122 (2013.01); C23C 18/1241 (2013.01); C23C 18/1254 (2013.01); C23C 22/73 (2013.01)] 23 Claims
OG exemplary drawing
 
1. A sol-gel for providing an adhesion coating, the sol-gel comprising a reaction product of:
an organosilane;
a metal alkoxide comprising a zirconium alkoxide; and
an acid stabilizer;
the sol-gel comprising a corrosion inhibitor having one or more thiol moieties; and
an organic solvent selected from the group consisting of 1-pentanol, 2-pentanol, 3-pentanol, 1-hexanol, 2-hexanol, 3-hexanol, and combinations thereof, wherein:
the sol-gel has a water content of 0 wt % based on a total weight of the sol-gel,
the organosilane consists of a hydroxy organosilane represented by Formula (II):

OG Complex Work Unit Chemistry
wherein R is selected from the group consisting of

OG Complex Work Unit Chemistry