US 11,834,535 B2
Curable high refractive index compositions and articles prepared from them
Wayne S. Mahoney, St. Paul, MN (US); Saswata Chakraborty, Cottage Grove, MN (US); Evan L. Schwartz, Vadnais Heights, MN (US); Claire Hartmann-Thompson, Lake Elmo, MN (US); and Tabitha A. Silliman, Woodbury, MN (US)
Assigned to 3M Innovative Properties Company, St. Paul, MN (US)
Appl. No. 17/054,655
Filed by 3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US)
PCT Filed May 10, 2019, PCT No. PCT/IB2019/053880
§ 371(c)(1), (2) Date Nov. 11, 2020,
PCT Pub. No. WO2019/220288, PCT Pub. Date Nov. 21, 2019.
Claims priority of provisional application 62/671,555, filed on May 15, 2018.
Prior Publication US 2021/0061935 A1, Mar. 4, 2021
Int. Cl. H01L 29/08 (2006.01); C08F 220/38 (2006.01); C09D 4/00 (2006.01); C09D 5/00 (2006.01); C09D 133/14 (2006.01); H10K 50/858 (2023.01); H10K 71/00 (2023.01); G02B 1/04 (2006.01)
CPC C08F 220/38 (2013.01) [C09D 4/00 (2013.01); C09D 5/002 (2013.01); C09D 133/14 (2013.01); H10K 50/858 (2023.02); H10K 71/00 (2023.02); C08F 2800/20 (2013.01); G02B 1/04 (2013.01)] 19 Claims
 
1. A curable composition comprising:
an acrylate of Formula I;

OG Complex Work Unit Chemistry
at least one multifunctional (meth)acrylate with fused aromatic groups, heteroarylene groups, heteroalkylene groups, alkylene groups, or aralkylene groups; and
a photoinitiator;
wherein the composition when cured has a refractive index of 1.63 or greater at 532 nanometers, is optically transparent, and has a thermal stability such that upon heating for 1 hour at 250° C. has a weight loss of 3.5% or less.