US 12,409,643 B2
Articles having inorganic substrates and polymer film layers
Kostantinos Kourtakis, Media, PA (US); Benjamin Samson, Wilmington, DE (US); Kenneth Hernandez, Stoneham, MA (US); Ross S Johnson, Wilmington, DE (US); Dennis Walls, Wilmington, DE (US); Neng Xiao, Bear, DE (US); Lei Zhang, Hockessin, DE (US); and Joseph Casey Johnson, Pickerington, OH (US)
Assigned to DUPONT ELECTRONICS, INC., Wilmington, DE (US)
Filed by DUPONT ELECTRONICS, INC., Wilmington, DE (US)
Filed on Sep. 6, 2022, as Appl. No. 17/903,762.
Claims priority of provisional application 63/253,364, filed on Oct. 7, 2021.
Claims priority of provisional application 63/244,585, filed on Sep. 15, 2021.
Prior Publication US 2023/0082265 A1, Mar. 16, 2023
Int. Cl. B32B 27/28 (2006.01); B32B 17/10 (2006.01)
CPC B32B 27/281 (2013.01) [B32B 17/10018 (2013.01); B32B 17/1055 (2013.01); B32B 2250/03 (2013.01); B32B 2307/102 (2013.01); B32B 2307/412 (2013.01); B32B 2307/558 (2013.01); B32B 2571/02 (2013.01)] 25 Claims
OG exemplary drawing
 
1. An article comprising:
an inorganic substrate comprising a material comprising a ceramic, a glass, a glass-ceramic or a mixture thereof, wherein the material comprises:
a metal cation selected from the group consisting of silicon, aluminum, titanium, zirconium, tantalum, niobium and mixtures thereof; and
oxygen;
a polymer film layer comprising a polymer comprising an imide group, wherein, from an interface where the inorganic substrate contacts the polymer film layer, a line-profile of a CNO− signal from negative secondary ion mass spectroscopy decreases as it moves away from the interface and into the bulk of the polymer film layer; and
a hard coat layer adhered to the polymer film layer on a side opposite the inorganic substrate, wherein the hard coat layer is formed from a curable resin coating composition.
 
11. An impact-resistant article comprising the article of claim 1.