US 12,129,348 B2
Hard coating film
Jin Seok Byun, Daejeon (KR); Byung Joon Chae, Daejeon (KR); Jae Young Kim, Daejeon (KR); Yeong Rae Chang, Daejeon (KR); and Yun U Shin, Daejeon (KR)
Assigned to LG CHEM, LTD., Seoul (KR)
Filed by LG CHEM, LTD., Seoul (KR)
Filed on Feb. 4, 2020, as Appl. No. 16/781,256.
Application 16/781,256 is a continuation in part of application No. PCT/KR2018/009112, filed on Aug. 9, 2018.
Claims priority of application No. 10-2017-0118862 (KR), filed on Sep. 15, 2017.
Prior Publication US 2020/0172689 A1, Jun. 4, 2020
This patent is subject to a terminal disclaimer.
Int. Cl. C08J 7/04 (2020.01); B32B 3/30 (2006.01); B32B 7/02 (2019.01); B32B 27/20 (2006.01); B32B 27/30 (2006.01); C08J 7/046 (2020.01); C08K 3/22 (2006.01); C08K 3/36 (2006.01); C08K 9/04 (2006.01); C08K 9/06 (2006.01); C09D 4/00 (2006.01); C09D 7/40 (2018.01); C09D 7/61 (2018.01); C09D 7/62 (2018.01); G02B 1/14 (2015.01)
CPC C08J 7/0427 (2020.01) [C08K 3/36 (2013.01); C09D 4/00 (2013.01); C09D 7/61 (2018.01); B32B 3/30 (2013.01); B32B 7/02 (2013.01); B32B 27/20 (2013.01); B32B 27/308 (2013.01); C08J 7/046 (2020.01); C08K 3/22 (2013.01); C08K 9/04 (2013.01); C08K 9/06 (2013.01); C08K 2201/005 (2013.01); C08K 2201/011 (2013.01); C08K 2201/014 (2013.01); C09D 7/62 (2018.01); C09D 7/67 (2018.01); C09D 7/68 (2018.01); G02B 1/14 (2015.01)] 10 Claims
OG exemplary drawing
 
1. A hard coating film comprising a hard coating base layer, the hard coating base layer including:
a polymer binder resin;
first inorganic particles dispersed in the polymer binder resin and having an average particle size of 5 nm or more and less than 70 nm; and
second inorganic particles dispersed in the polymer binder resin and having an average particle size of 70 nm to 150 nm,
wherein a content of the first inorganic particles is 1% by weight to 4% by weight with respect to 100% by weight of the hard coating base layer,
wherein a content of the second inorganic particles having an average particle size of 70 nm to 150 nm is 4% by weight to 12% by weight with respect to 100% by weight of the hard coating base layer,
wherein an average value of a distance between one surface of the hard coating base layer and the center of each of the second inorganic particles in a direction perpendicular to the one surface of the hard coating base layer is 35 nm to 5.0 μm, and the second inorganic particles are adjacent to each other in a horizontal direction with respect to the one surface of the hard coating base layer and spaced apart by an average value of a distance of 0.1 μm to 1.5 μm, the distance being determined as an average of the distance between centers of one second inorganic particle and an adjacent second inorganic particle,
wherein the second inorganic particles are dispersed in the polymer binder resin with no agglomeration,
wherein the first inorganic particles and the second inorganic particles each consist of the same one or more reactive functional group on a surface thereof, and
wherein the reactive functional group forms a crosslinking bond with the polymer binder resin.