The present specification relates to a fluorene-based compound of Chemical Formula 1, a coating composition including the fluorene-based compound of Chemical Formula 1, an organic light emitting device using the same, and a manufacturing method thereof

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wherein X1 to X4, L1, L2, R1 to R6, Ar1, Ar2, m1, m2, and n1 to n6 are described herein.

The present invention relates to a process for preparing oxide particles, in particular metal oxide particles, coated with silicon oxide by means of flame spray pyrolysis technology, to oxide particles, in particular metal oxide particles, coated with silicon oxide, and to a composition comprising said particles. The present invention also relates to specific oxide particles, in particular metal oxide particles, coated with silicon oxide derived from such a process, to the compositions comprising such particles and also to the uses thereof.

A photosensitive green composition for a color filter of a solid-state imaging element, contains a colorant (A), a binder resin (B), a photopolymerization initiator (C), a photopolymerizable monomer (D), an ultraviolet absorber (E), and a monofunctional thiol (F), wherein the colorant (A) contains C.I. Pigment Green 36 and/or C.I. Pigment Green 58.

A photosensitive green composition for a color filter of a solid-state imaging element, contains a colorant (A), a binder resin (B), a photopolymerization initiator (C), a photopolymerizable monomer (D), an ultraviolet absorber (E), and a monofunctional thiol (F), wherein the colorant (A) contains C.I. Pigment Green 36 and/or C.I. Pigment Green 58.

Organic-inorganic light-absorbing materials with perovskite structure, being used in perovskite solar cells production. The objective of the invention is to provide the possibility of obtaining perovskite using precursors that are in a liquid state without the use of additional substances and reagents. The concept of the invention is based on the fact that a light-absorbing material with perovskite structure with general formula ADB.sub.3, where A stands for methylammonium MA.sup.+ (CH.sub.3NH.sub.3.sup.+), formamidinium, FA.sup.+ ((NH.sub.2).sub.2CH.sup.+), guanidinium Gua (C(NH2)3+), cesium Cs.sup.+ or a mixture thereof, B stands for Cl.sup.−, Br.sup.−, I.sup.− or a mixture thereof, while the component D represents Sn, Pb, Bi or a mixture thereof, is obtained by mixing composition AB-nB.sub.2 and a component containing D, where the component containing D is chosen from elemental Sn, Pb, Bi and/or their salts, mixtures, alloys, whereas the composition AB-nB.sub.2 is deposited onto the component D followed by subsequent removal of the excessive components, n is greater than or equal to one, the component B.sub.2 represents Cl.sub.2, Br.sub.2, I.sub.2 or a mixture thereof.

Organic-inorganic light-absorbing materials with perovskite structure, being used in perovskite solar cells production. The objective of the invention is to provide the possibility of obtaining perovskite using precursors that are in a liquid state without the use of additional substances and reagents. The concept of the invention is based on the fact that a light-absorbing material with perovskite structure with general formula ADB.sub.3, where A stands for methylammonium MA.sup.+ (CH.sub.3NH.sub.3.sup.+), formamidinium, FA.sup.+ ((NH.sub.2).sub.2CH.sup.+), guanidinium Gua (C(NH2)3+), cesium Cs.sup.+ or a mixture thereof, B stands for Cl.sup.−, Br.sup.−, I.sup.− or a mixture thereof, while the component D represents Sn, Pb, Bi or a mixture thereof, is obtained by mixing composition AB-nB.sub.2 and a component containing D, where the component containing D is chosen from elemental Sn, Pb, Bi and/or their salts, mixtures, alloys, whereas the composition AB-nB.sub.2 is deposited onto the component D followed by subsequent removal of the excessive components, n is greater than or equal to one, the component B.sub.2 represents Cl.sub.2, Br.sub.2, I.sub.2 or a mixture thereof.

In one or more embodiments, the present invention provides a polymer composition for use in, cosmetics, coatings, inks, polymer compounding formulation comprising an all-natural, DHN-based, nitrogen-free black knot fungal (BKF) allomelanin extracted from black knots (a fungal growth formed by Apiosporina morbosa). The BKF melanin is naturally sourced, economically extracted, and quite unexpectedly, has been found to have better UV absorbing and antioxidant properties than synthetic melanin (polydopamine) and commercially available sepia melanin. In various embodiments, a small amount of the BKF melanin is substantially uniformly blended into a polymer or similar material to create a composition having excellent UV absorption and antioxidant properties. Surprisingly, it has also been found that the UV absorption and antioxidant properties of these polymer compositions can withstand heating and other processing steps associated with polymers, and in particular, rubber without significant reduction in effectiveness.

In one or more embodiments, the present invention provides a polymer composition for use in, cosmetics, coatings, inks, polymer compounding formulation comprising an all-natural, DHN-based, nitrogen-free black knot fungal (BKF) allomelanin extracted from black knots (a fungal growth formed by Apiosporina morbosa). The BKF melanin is naturally sourced, economically extracted, and quite unexpectedly, has been found to have better UV absorbing and antioxidant properties than synthetic melanin (polydopamine) and commercially available sepia melanin. In various embodiments, a small amount of the BKF melanin is substantially uniformly blended into a polymer or similar material to create a composition having excellent UV absorption and antioxidant properties. Surprisingly, it has also been found that the UV absorption and antioxidant properties of these polymer compositions can withstand heating and other processing steps associated with polymers, and in particular, rubber without significant reduction in effectiveness.

An infrared shielding film is an infrared shielding film including: an organic binder; and a plurality of tin-doped indium oxide particles (ITO particles) dispersed in the organic binder, in which the average center-to-center distance between adjacent particles of the ITO particles is in a range of 9 nm or more and 36 nm or less, the ratio of the average center-to-center distance between the adjacent particles to the average primary particle diameter of the ITO particles is in a range of 1.05 or more and 1.20 or less, and a roughness Ra of a film surface is in a range of 4 nm or more and 50 nm or less.

Disclosed are polyurethane-polysiloxane hybrid coating compositions (PUPSHCC) and their uses, processes for their preparation, and substrates incorporating the coating compositions.