# US 8,771,545 B2 · Absorbent and passivation layer for optical element comprising the same

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- Number: US 8,771,545 B2
- Document ID: US8771545B2
- Status: Granted
- Kind: B2
- Application number: 13/637,480
- Filed: 2011-06-30
- Published: 2013-01-24
- Granted: 2014-07-08
- Earliest claimed: 2010-06-30
- Assignees: Kolon Industries, Inc.
- Applicants: Seok Gi Kim; Young Sung Suh; Kyung Keun Yoon
- Inventors: Seok Gi Kim; Young Sung Suh; Kyung Keun Yoon
- Web page: https://patentgrep.com/patent/US8771545B2

## CPC

- C07F 5/069: {without C-aluminium linkages}
- B01J 20/261: {obtained by reactions only involving carbon to carbon unsaturated bonds (macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds per se C08F)}
- B01J 20/262: {obtained otherwise than by reactions only involving carbon to carbon unsaturated bonds, e.g. obtained by polycondensation (macromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds per se C08G)}
- B01J 20/28011: {Other properties, e.g. density, crush strength}
- B01J 20/3287: {Layers in the form of a liquid}
- H10F 19/804: {Materials of encapsulations}
- B01J 2220/445: comprising a mixture of polymers
- H10K 50/846: {comprising getter material or desiccants}
- Y02E 10/50: Photovoltaic [PV] energy
- C07F: ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM (metal-containing porphyrins C07D487/22)
- B01J: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- H10F: INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

## Abstract

The present invention relates to an absorbent and a passivation layer for an optical element comprising the same, and more specifically to an absorbent that can be applied to a flexible substrate while blocking the inflow of water, and also not blocking light, and a passivation layer for the optical element comprising the same. Also the present invention relates to an absorbent that can maintain a light-emitting property for a long period of time by minimizing damage to the optical element by using the compound synthesized using a non-polar solvent, and the passivation layer for the optical element comprising the same.

## Claims

### Claim 1

An absorbent comprising a compound represented by the following Chemical Formula 1, produced by using an inert solvent:
wherein,
all of R1 may be the same or different group to one another as selected from alkyl group, cycloalkyl group, and aryl group that have at least 10 of a number of C; M is selected from trivalent metals; and X is an integer of 1˜1000.

### Claim 2 (depends on 1)

The absorbent according to claim 1, Wherein the inert solvent is at least one selected from the group consisting of saturated hydrocarbon compound, silicon oil, liquid aromatic petroleum hydrocarbon resin, polyisobutylene, liquid poly butene, liquid paraffin and waxes.

### Claim 3 (depends on 1)

The absorbent according to claim 1, wherein a light transmission measured at 550 nm is at least 50%.

### Claim 4

A passivation layer for an optical element comprising a compound represented by the following Chemical Formula 1, produced by using an inert solvent:
wherein,
all of R1 may be the same or different group to one another as selected from alkyl group, cycloalkyl group, and aryl group that have at least 10 of a number of C; M is selected from trivalent metals; and X is an integer of 1˜1000.

### Claim 5 (depends on 4)

The passivation layer for the optical element according to claim 4, further comprising a thermoplastic resin.

### Claim 6 (depends on 5)

The passivation layer for the optical element according to claim 5, wherein the thermoplastic resin is at least one selected from the group consisting of polyethylene resin, polypropylene resin, polystyrene resin, polyamide resin, acrylic resin, vinyl chloride resin, celluloid resin, phenolic resin, urea resin, melamine resin, alkyd resin, silicone resin, epoxy resin, and urethane resin.

### Claim 7 (depends on 5)

The passivation layer for the optical element according to claim 5, wherein the thermoplastic resin has water content of not more than 100 ppm.

### Claim 8 (depends on 5)

The passivation layer for the optical element according to claim 5, wherein the thermoplastic resin has a softening temperature of 50˜200° C.

### Claim 9 (depends on 4)

The passivation layer for the optical element according to claim 4, wherein a light transmission measured at 550 nm is at least 50%.

### Claim 10 (depends on 4)

The passivation layer for the optical element according to claim 4, wherein the optical element is selected from an organic light-emitting element, a semiconductor, a liquid crystal display device, a plasma display device, and a solar cell.

### Claim 11 (depends on 1)

An optical element comprising the absorbent according to claim 1.

### Claim 12 (depends on 4)

An optical element comprising the passivation layer for the optical element according to claim 4.

### Claim 13 (depends on 2)

An optical element comprising the absorbent according to claim 2.

### Claim 14 (depends on 3)

An optical element comprising the absorbent according to claim 3.

### Claim 15 (depends on 5)

An optical element comprising the passivation layer for the optical element according to claim 5.

### Claim 16 (depends on 6)

An optical element comprising the passivation layer for the optical element according to claim 6.

### Claim 17 (depends on 7)

An optical element comprising the passivation layer for the optical element according to claim 7.

### Claim 18 (depends on 8)

An optical element comprising the passivation layer for the optical element according to claim 8.

### Claim 19 (depends on 9)

An optical element comprising the passivation layer for the optical element according to claim 9.