US 11,999,844 B2
Optically clear shear thickening fluids and optical display device comprising same
Deyan Wang, Hudson, MA (US); and Yixuan Song, Marlborough, MA (US)
Assigned to ROHM AND HAAS ELECTRONIC MATERIALS LLC, Wilmington, DE (US)
Filed by Rohm and Haas Electronic Materials LLC, Marlborough, MA (US)
Filed on Feb. 1, 2021, as Appl. No. 17/163,604.
Claims priority of provisional application 62/986,944, filed on Mar. 9, 2020.
Prior Publication US 2021/0277219 A1, Sep. 9, 2021
Int. Cl. C08L 33/06 (2006.01); B82Y 20/00 (2011.01); C08K 3/36 (2006.01); C08K 9/06 (2006.01); C09D 7/40 (2018.01); C09D 7/62 (2018.01); C09D 7/80 (2018.01); C09D 133/06 (2006.01); G02B 1/14 (2015.01)
CPC C08L 33/066 (2013.01) [C08K 3/36 (2013.01); C08K 9/06 (2013.01); C08L 33/064 (2013.01); C08L 33/068 (2013.01); C09D 7/62 (2018.01); C09D 7/67 (2018.01); C09D 7/80 (2018.01); C09D 133/064 (2013.01); C09D 133/066 (2013.01); C09D 133/068 (2013.01); G02B 1/14 (2015.01); B82Y 20/00 (2013.01); C08K 2201/005 (2013.01); C08L 2205/02 (2013.01); C08L 2205/035 (2013.01); C08L 2312/06 (2013.01)] 14 Claims
OG exemplary drawing
 
1. An optically clear shear thickening fluid comprising:
a solid nanoparticle having an average particle size equal to or less than 100 nm;
at least one polymer; and
a liquid medium,
wherein the at least one polymer is substantially soluble in the liquid medium, and wherein the at least one polymer is selected from the group consisting of poly(2-hydroxyethyl acrylate-co-glycidyl methacrylate-co-methacrylic acid), poly(2-hydroxyethyl acrylate-co-glycidyl methacrylate-co-2-carboxyethyl acrylate), poly(2-hydroxyethyl acrylate) partially capped with acrylate functional groups, polyethylene glycol diacrylate, polyethylene glycol dimethacrylate, polyethylene glycol monoacrylate, polyethylene glycol monomethacrylate, a copolymer of 2-hydroxyethyl acrylate, and combinations thereof.