US 12,464,939 B2
Articles including nanostructured surfaces and enclosed voids, methods of making same, and optical elements
Jeffrey L. Solomon, Centerville, MN (US); Christopher S. Lyons, St. Paul, MN (US); Joseph C. Spagnola, Woodbury, MN (US); and Thomas P. Klun, Lakeland, MN (US)
Assigned to 3M Innovative Properties Company, St. Paul, MN (US)
Appl. No. 18/016,390
Filed by 3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US)
PCT Filed Jul. 28, 2021, PCT No. PCT/IB2021/056879
§ 371(c)(1), (2) Date Jan. 16, 2023,
PCT Pub. No. WO2022/043787, PCT Pub. Date Mar. 3, 2022.
Claims priority of provisional application 63/117,079, filed on Nov. 23, 2020.
Claims priority of provisional application 63/071,488, filed on Aug. 28, 2020.
Prior Publication US 2023/0271401 A1, Aug. 31, 2023
Int. Cl. H10K 71/50 (2023.01); B32B 3/30 (2006.01); B32B 7/12 (2006.01); B32B 9/00 (2006.01); B32B 9/04 (2006.01); B32B 15/09 (2006.01); B32B 15/20 (2006.01); B32B 17/10 (2006.01); B32B 27/08 (2006.01); B32B 27/30 (2006.01); B32B 27/32 (2006.01); B32B 27/36 (2006.01); B32B 27/40 (2006.01); B32B 37/12 (2006.01); B32B 37/24 (2006.01); B32B 38/00 (2006.01); B32B 38/06 (2006.01); B82B 1/00 (2006.01); G02B 5/18 (2006.01)
CPC H10K 71/50 (2023.02) [B32B 3/30 (2013.01); B32B 7/12 (2013.01); B32B 9/005 (2013.01); B32B 9/045 (2013.01); B32B 15/09 (2013.01); B32B 15/20 (2013.01); B32B 17/10 (2013.01); B32B 27/08 (2013.01); B32B 27/308 (2013.01); B32B 27/32 (2013.01); B32B 27/36 (2013.01); B32B 27/40 (2013.01); B32B 37/12 (2013.01); B32B 37/24 (2013.01); B32B 38/0008 (2013.01); B32B 38/06 (2013.01); B32B 2037/243 (2013.01); B32B 2255/10 (2013.01); B32B 2255/20 (2013.01); B32B 2270/00 (2013.01); B32B 2305/74 (2013.01); B32B 2307/7376 (2023.05); B32B 2310/0831 (2013.01); B32B 2311/24 (2013.01); B32B 2315/08 (2013.01); B32B 2323/10 (2013.01); B32B 2367/00 (2013.01); B32B 2375/00 (2013.01); B32B 2551/00 (2013.01); B82B 1/001 (2013.01); G02B 5/1847 (2013.01)] 13 Claims
OG exemplary drawing
 
1. An article comprising:
a) a first layer comprising a nanostructured first surface comprising nanofeatures and an opposing second surface, wherein the nanostructured first surface comprises recessed features, or protruding features formed of a single composition, or both recessed and protruding features, and wherein the first layer comprises an organic material; and
b) a second layer comprising a first major surface and an opposing second major surface, the first major surface bonded to a portion of the nanostructured first surface of the first layer via a bonded coupling agent, wherein the article comprises at least one enclosed void defined in part by the nanostructured first surface of the first layer, wherein the second layer comprises an inorganic material, and wherein the bonded coupling agent comprises at least a first functional group that bonds to the nanostructured first surface of the first layer and at least a second different functional group that bonds to the first major surface of the second layer.