	US 11,840,642 B2
	Composite film with anti-reflective coating
Yongzhong Wang, Tucson, AZ (US); Robrecht Moerkerke, Kortrijk (BE); and Fabien Lienhart, Paris (FR)
Assigned to SAINT-GOBAIN PERFORMANCE PLASTICS CORPORATION, Solon, OH (US)
Filed by SAINT-GOBAIN PERFORMANCE PLASTICS CORPORATION, Solon, OH (US)
Filed on Jan. 23, 2023, as Appl. No. 18/157,959.
Application 18/157,959 is a continuation of application No. 16/441,161, filed on Jun. 14, 2019, granted, now 11,584,856.
Claims priority of provisional application 62/687,560, filed on Jun. 20, 2018.
Prior Publication US 2023/0159764 A1, May 25, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. B32B 27/36 (2006.01); B32B 7/12 (2006.01); C09D 4/00 (2006.01); B32B 27/08 (2006.01); C08K 9/06 (2006.01); C08K 9/04 (2006.01); C08K 3/36 (2006.01); C09D 5/00 (2006.01); C09D 135/02 (2006.01); C09D 7/40 (2018.01)

CPC C09D 5/006 (2013.01) [B32B 7/12 (2013.01); B32B 27/08 (2013.01); B32B 27/36 (2013.01); C09D 4/00 (2013.01); C09D 7/67 (2018.01); C09D 7/68 (2018.01); C09D 135/02 (2013.01); B32B 2255/10 (2013.01); B32B 2255/26 (2013.01); C08K 3/36 (2013.01); C08K 9/04 (2013.01); C08K 9/06 (2013.01); C08K 2201/005 (2013.01); C08K 2201/011 (2013.01)]

20 Claims

1. A composite film comprising:

a first transparent substrate; and

a first anti-reflective coating overlying a first surface of the first transparent substrate, wherein the first anti-reflective coating comprises:

a first UV curable acrylate binder at a concentration of at least about 40 wt. % and not greater than about 95 wt. % for a total weight of the first anti-reflective coating,

a photo initiator component at a concentration of at least about 2.0 wt. % and not greater than about 10 wt. % for a total weight of the first anti-reflective coating, and

silica nanoparticles dispersed within the first anti-reflective coating at a concentration of at least about 5 wt. % and not greater than about 60 wt. % for a total weight of the first anti-reflective coating, wherein the composite film has a VLT of at least about 93.0%, and wherein the composite film has a haze value of not greater than about 3%.