US 11,746,284 B2
Composition comprising a semiconducting light emitting nanoparticle
Tadashi Kishimoto, Kanagawa (JP); Yuki Hirayama, Tokyo (JP); Tomohisa Goto, Kanagawa (JP); Masayoshi Suzuki, Tokyo (JP); and Teruaki Suzuki, Kanagawa (JP)
Assigned to Merck Patent GmbH, Darmstadt (DE)
Appl. No. 16/625,170
Filed by Merck Patent GmbH, Darmstadt (DE)
PCT Filed Jun. 26, 2018, PCT No. PCT/EP2018/067019
§ 371(c)(1), (2) Date Dec. 20, 2019,
PCT Pub. No. WO2019/002239, PCT Pub. Date Jan. 3, 2019.
Claims priority of application No. 17178715 (EP), filed on Jun. 29, 2017.
Prior Publication US 2020/0157419 A1, May 21, 2020
Int. Cl. C09K 11/02 (2006.01); C08F 20/18 (2006.01); C08F 20/28 (2006.01); C08K 3/30 (2006.01); C08K 3/32 (2006.01); C08K 9/02 (2006.01); C09K 11/08 (2006.01); C09K 11/70 (2006.01); C09K 11/88 (2006.01); H01L 51/00 (2006.01); B82Y 20/00 (2011.01); H01L 51/50 (2006.01)
CPC C09K 11/02 (2013.01) [C08F 20/18 (2013.01); C08F 20/28 (2013.01); C08K 3/30 (2013.01); C08K 3/32 (2013.01); C08K 9/02 (2013.01); C09K 11/0883 (2013.01); C09K 11/70 (2013.01); C09K 11/883 (2013.01); H01L 51/0035 (2013.01); B82Y 20/00 (2013.01); C08K 2201/001 (2013.01); C08K 2201/011 (2013.01); H01L 51/502 (2013.01)] 23 Claims
 
1. A composition comprising
i) at least one semiconducting light emitting nanoparticle comprising a core and one or more shell layers,
ii) at least one polymer,
wherein the polymer comprises at least:
a repeating unit A comprising a phosphine group, phosphine oxide group, phosphate group, phosphonate group, thiol group, tertiary amine, carboxyl group, hetero cyclic group, silane group, sulfonic acid, hydroxyl group, phosphonic acid, or a combination of thereof, and
a repeating unit B that does not include any phosphine group, phosphine oxide group, phosphate group, phosphonate group, thiol group, tertiary amine, carboxyl group, hetero cyclic group, silane group, sulfonic acid, hydroxyl group, phosphonic acid or combination of thereof, and
iii) at least one (meth)acrylate represented by following chemical formula (I),

OG Complex Work Unit Chemistry
wherein n is 0 or 1, R1 is a straight alkylene chain or alkoxylene chain having 1 to 15 carbon atoms, R2 is a branched or cyclic alkyl or alkoxy group having 3 to 40 carbon atoms, which may in each case be substituted by one or more radicals Ra, where one or more non-adjacent CH2 groups may be replaced by RaC═CR1, C≡C, Si(Ra)2, Ge(Ra)2, Sn(Ra)2, C═O, C═S, C═Se, C═NRa, P(═O)(Ra), SO, SO2, NRa, OS, or CONRa and where one or more H atoms may be replaced by D, F, Cl, Br, I, CN or NO2, or an aromatic or heteroaromatic ring system having 5 to 60 aromatic ring atoms, which may be substituted by one or more radicals Ra;
Ra is at each occurrence, identically or differently, H, D, or an alkyl group having 1 to 20 carbon atoms, cyclic alkyl or alkoxy group having 3 to 40 carbon atoms, an aromatic ring system having 5 to 60 carbon ring atoms, or a hetero aromatic ring system having 5 to 60 carbon atoms, wherein H atoms may be replaced by D, F, Cl, Br, I; two or more adjacent substituents Ra here may also form a mono- or polycyclic, aliphatic, aromatic or heteroaromatic ring system with one another; R3 is H or CH3,
wherein the polymer is a copolymer selected from the group consisting of graft copolymers, block copolymers, alternating copolymers, and random copolymers.