KR20150047910A - Composition for encapsulant and encapsulant and electronic device - Google Patents

Abstract

The present invention relates to an encapsulant composition containing a first polysiloxane which has a moiety represented by chemical formula 1, an encapsulant obtained by metalizing the encapsulant composition, and an electronic device containing the encapsulant. In the chemical formula 1, R^(1a) (C_2H_4O)_x(C_3H_6O)_y R^(1b) SiO_(n/2), R^(1a), R^(1b), n, x, and y are the same as defined in the specification.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an encapsulant composition, an encapsulant,

An encapsulation material, an encapsulation material, an encapsulation material, and an encapsulation material.

 BACKGROUND ART Light emitting devices such as light emitting diodes (LEDs), organic light emitting diode devices (OLED devices), and photoluminescence devices (PL devices) And various automation devices.

These light emitting devices can display an intrinsic color of a light emitting material such as blue, red, and green in a light emitting portion, and can display a white color by combining light emitting portions that display different colors.

Such a light emitting device generally includes an encapsulant of a packaging or encapsulated structure. Such an encapsulant may be made from an encapsulant composition comprising a light-transmissive resin through which light emitted from the light emitting portion can pass to the outside.

On the other hand, in order to improve the process yield of the encapsulant, it is important that the encapsulant packaged products exist on similar color coordinates. In addition, when color change due to sulfur occurs due to environmental factors that the encapsulant is exposed to, the brightness of the light emitting device may be sharply lowered.

One embodiment provides an encapsulant composition capable of improving color dispersion and water resistance to improve processability and reliability.

Another embodiment provides an encapsulant obtained by curing the encapsulant composition.

Yet another embodiment provides an electronic device comprising the encapsulant.

According to one embodiment, there is provided an encapsulant composition comprising a first polysiloxane having a moiety represented by the following formula (1).

[Chemical Formula 1]

R ^1a (C ₂ H ₄ O) _x (C ₃ H ₆ O) _y R ^1b SiO _{n / 2}

In Formula 1,

R ^1a is hydrogen, a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C3 to C30 cycloalkyl group, a substituted or unsubstituted C6 to C30 aryl group, a substituted or unsubstituted C7 to C30 arylalkyl group, A substituted or unsubstituted C1 to C30 heteroalkyl group, a substituted or unsubstituted C2 to C30 heterocycloalkyl group, a substituted or unsubstituted C2 to C30 alkenyl group, a substituted or unsubstituted C2 to C30 alkynyl group, C30 alkoxy group, a substituted or unsubstituted C1 to C30 carbonyl group, a hydroxy group or a combination thereof,

R ^1b represents a single bond, a substituted or unsubstituted C1 to C30 alkylene group, a substituted or unsubstituted C3 to C30 cycloalkylene group, a substituted or unsubstituted C6 to C30 arylene group, a substituted or unsubstituted C7 to C30 arylalkyl A substituted or unsubstituted C1 to C30 heteroalkylene group, a substituted or unsubstituted C2 to C30 heterocycloalkylene group, or a combination thereof,

n is an integer of 1 to 3,

100, 0 < / = y < = 100,

x and y are not 0 at the same time.

The ratio of x and y may be about 1: 9 to 9: 1.

X may be greater than y.

The first polysiloxane may be represented by the following general formula (2).

(2)

^{(R 2 R 3 R 4 SiO} 1/2) M1 (R 5 R 6 SiO 2/2) D1 (R 7 R 8 SiO 2/2) D2 (R 9 SiO 3/2) T1 (R 10 SiO 3 / _{^{2) T2 (R 11 SiO 3}} /2) T3 (SiO 4/2) Q1

In Formula 2,

R ² to R ¹¹ are each independently hydrogen, a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C3 to C30 cycloalkyl group, a substituted or unsubstituted C6 to C30 aryl group, a substituted or unsubstituted C7 to C30 aryl group, C30 arylalkyl group, a substituted or unsubstituted C1 to C30 heteroalkyl group, a substituted or unsubstituted C2 to C30 heterocycloalkyl group, a substituted or unsubstituted C2 to C30 alkenyl group, a substituted or unsubstituted C2 to C30 alkynyl group, a substituted Or a substituted or unsubstituted C 1 to C 30 carbonyl group, a hydroxy group or a combination thereof, or R ¹ (C ₂ H ₄ O) _x (C ₃ H ₆ O) _y , wherein R ¹ , x and y are as defined above,

R ² to R ¹¹ And at least one of the _{^{R 1a (C 2 H 4 O}} ) x (C 3 H 6 O) y R 1b,

R ^1a And R ² to R ¹¹ Is hydrogen or a substituted or unsubstituted C2 to C30 alkenyl group,

1, 0? D? 1, 0? D1 <1, 0? T1 <1, 0?

At least one of M1, D1 and T1 is not 0,

M1 + D1 + D2 + T1 + T2 + T3 + Q1 = 1.

The first polysiloxane may be represented by the following general formula (3).

(3)

^{_{(R 9 SiO 3/2)}} T1 (R 10 SiO 3/2) T2 (R 11 SiO 3/2) T3

In Formula 3,

R ⁹ is selected from R ^1a (C ₂ H ₄ O) _x (C ₃ H ₆ O) _y R ^1b , Wherein R ^1a , R ^1b , x and y are as described above,

R ¹⁰ and R ¹¹ are each independently hydrogen, a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C3 to C30 cycloalkyl group, a substituted or unsubstituted C6 to C30 aryl group, a substituted or unsubstituted C7 to C30 aryl group, C30 arylalkyl group, a substituted or unsubstituted C1 to C30 heteroalkyl group, a substituted or unsubstituted C2 to C30 heterocycloalkyl group, a substituted or unsubstituted C2 to C30 alkenyl group, a substituted or unsubstituted C2 to C30 alkynyl group, a substituted Or an unsubstituted C1 to C30 alkoxy group, a substituted or unsubstituted C1 to C30 carbonyl group, a hydroxy group or a combination thereof,

R ^1a , R ¹⁰ and R ¹¹ Is hydrogen or a substituted or unsubstituted C2 to C30 alkenyl group,

0 &lt; T1 < 1, 0? T2 <1, 0? T3 <1,

T1 + T2 + T3 = 1.

Wherein the encapsulant composition comprises at least one third polysiloxane having at least one second polysiloxane having silicon-bonded hydrogen (Si-H) at the ends and at least one third polysiloxane having silicon-bonded alkenyl groups (Si-Vi) And may further include one.

The second polysiloxane may be represented by the following general formula (4).

[Chemical Formula 4]

^{(R 12 R 13 R 14 SiO} 1/2) M2 (R 15 R 16 SiO 2/2) D3 (R 17 SiO 3/2) T4 (SiO 3/2 -Y 1 -SiO 3/2) T5 (SiO _{4/2) Q2}

In Formula 4,

R ¹² to R ¹⁷ are each independently hydrogen, a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C3 to C30 cycloalkyl group, a substituted or unsubstituted C6 to C30 aryl group, a substituted or unsubstituted C7 to C30 aryl group, C30 arylalkyl group, a substituted or unsubstituted C1 to C30 heteroalkyl group, a substituted or unsubstituted C2 to C30 heterocycloalkyl group, a substituted or unsubstituted C2 to C30 alkynyl group, a substituted or unsubstituted C1 to C30 alkoxy group, Or an unsubstituted C1 to C30 carbonyl group, a hydroxy group or a combination thereof,

R ¹² to R ¹⁷ Lt; RTI ID = 0.0 &gt; hydrogen, &lt; / RTI &

Y ¹ is a single bond, a substituted or unsubstituted C1 to C20 alkylene group, a substituted or unsubstituted C3 to C20 cycloalkylene group, a substituted or unsubstituted C6 to C20 arylene group, a substituted or unsubstituted C2 to C20 heteroaryl A substituted or unsubstituted C2 to C20 alkenylene group, a substituted or unsubstituted C2 to C20 alkynylene group, or a combination thereof,

0 <T3 <1, 0 <M2 <1, 0 <D3 <

M2 + D3 + T4 + T5 + Q2 = 1.

R ¹² to R ¹⁷ May include a substituted or unsubstituted C6 to C30 aryl group.

The third polysiloxane may be represented by the following formula (5).

[Chemical Formula 5]

^{(R 18 R 19 R 20 SiO} 1/2) M3 (R 21 R 22 SiO 2/2) D4 (R 23 SiO 3/2) T6 (SiO 3/2 -Y 2 -SiO 3/2) T7 (SiO _{4/2) Q3}

In Formula 5,

R ¹⁸ to R ²³ each independently represent a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C3 to C30 cycloalkyl group, a substituted or unsubstituted C6 to C30 aryl group, a substituted or unsubstituted C7 to C30 aryl Substituted or unsubstituted C1 to C30 heteroalkyl groups, substituted or unsubstituted C2 to C30 heterocycloalkyl groups, substituted or unsubstituted C2 to C30 alkenyl groups, substituted or unsubstituted C2 to C30 alkynyl groups, A substituted or unsubstituted C1 to C30 alkoxy group, a substituted or unsubstituted C1 to C30 carbonyl group, a hydroxy group or a combination thereof,

At least one of R ¹⁸ to R ²³ includes a substituted or unsubstituted C2 to C30 alkenyl group,

Y ² represents a single bond, a substituted or unsubstituted C1 to C20 alkylene group, a substituted or unsubstituted C3 to C20 cycloalkylene group, a substituted or unsubstituted C6 to C20 arylene group, a substituted or unsubstituted C2 to C20 heteroaryl A substituted or unsubstituted C2 to C20 alkenylene group, a substituted or unsubstituted C2 to C20 alkynylene group, or a combination thereof,

0 &lt; T3 < 1, 0 <

M3 + D4 + T6 + T7 + Q3 = 1.

The R ¹⁸ to R ²³ May include a substituted or unsubstituted C6 to C30 aryl group.

The second polysiloxane may comprise less than about 50 weight percent of the total amount of the second polysiloxane and the third polysiloxane and the third polysiloxane may comprise less than about 50 weight percent of the second polysiloxane and the third polysiloxane, May be included in excess of% by weight.

The first polysiloxane may be included in an amount of about 0.01 to 20 wt% based on the total amount of the encapsulant composition.

The first polysiloxane may be included in an amount of about 0.1 to 5 wt% based on the total amount of the encapsulant composition.

According to another embodiment, there is provided an encapsulant obtained by curing the encapsulant composition.

According to another embodiment, there is provided an electronic device comprising the encapsulant.

The color dispersion and the sulfur content can be increased to improve the processability and reliability.

1 is a cross-sectional view schematically illustrating a light emitting diode according to one embodiment.

Hereinafter, exemplary embodiments of the present invention will be described in detail so that those skilled in the art can easily carry out the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

Unless otherwise defined herein, "substituted" means that the hydrogen atom in the compound is a halogen atom (F, Br, Cl, or I), a hydroxy group, an alkoxy group, a nitro group, a cyano group, an amino group, A thio group, an ester group, a carboxyl group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid or a salt thereof, a C1 to C20 alkyl group, a C2 to C20 alkenyl group, a C2 to C20 alkenyl group, a C2 to C20 alkenyl group, A C 1 to C 30 arylalkyl group, a C 7 to C 30 arylalkyl group, a C 1 to C 30 alkoxy group, a C 1 to C 20 heteroalkyl group, a C 3 to C 20 heteroarylalkyl group, a C 3 to C 30 cycloalkyl group, a C 3 to C 15 cycloalkenyl group, C6 to C15 cycloalkynyl groups, C3 to C30 heterocycloalkyl groups, and combinations thereof.

In addition, unless otherwise defined herein, "hetero" means containing 1 to 3 heteroatoms selected from N, O, S and P.

Hereinafter, the sealing material composition according to one embodiment will be described.

An encapsulant composition according to one embodiment comprises a first polysiloxane having a moiety represented by the following formula (1).

[Chemical Formula 1]

R ^1a (C ₂ H ₄ O) _x (C ₃ H ₆ O) _y R ^1b SiO _{n / 2}

In Formula 1,

R ^1a is hydrogen, a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C3 to C30 cycloalkyl group, a substituted or unsubstituted C6 to C30 aryl group, a substituted or unsubstituted C7 to C30 arylalkyl group, A substituted or unsubstituted C1 to C30 heteroalkyl group, a substituted or unsubstituted C2 to C30 heterocycloalkyl group, a substituted or unsubstituted C2 to C30 alkenyl group, a substituted or unsubstituted C2 to C30 alkynyl group, C30 alkoxy group, a substituted or unsubstituted C1 to C30 carbonyl group, a hydroxy group or a combination thereof,

R ^1b represents a single bond, a substituted or unsubstituted C1 to C30 alkylene group, a substituted or unsubstituted C3 to C30 cycloalkylene group, a substituted or unsubstituted C6 to C30 arylene group, a substituted or unsubstituted C7 to C30 arylalkyl A substituted or unsubstituted C1 to C30 heteroalkylene group, a substituted or unsubstituted C2 to C30 heterocycloalkylene group, or a combination thereof,

n is an integer of 1 to 3,

100, 0 &lt; / = y &lt; = 100,

x and y are not 0 at the same time.

The moiety represented by Formula 1 may be a siloxane moiety including ethylene oxide and / or propylene oxide, and may improve the surface tension and surface smoothness of the encapsulant. Thus, the encapsulant formed from the encapsulant composition can effectively prevent the penetration of external pollutants such as sulfur, thereby improving the reliability.

In addition, the moiety represented by the above formula (1) has hydrophilic groups in the structure to increase the dispersibility of the phosphor. As a result, the phosphors are uniformly distributed in the encapsulation material, thereby increasing the color dispersion.

The moiety represented by Formula 1 is a structure having a structure in which ethylene oxide and / or propylene oxide is bonded to a siloxane group, and a second polysiloxane having silicon-bonded hydrogen (Si-H) and a silicon-bonded alkenyl group Si -Vi) to prevent the encapsulant composition from being phase-separated and to participate in the hydrogen saccharification reaction with the second polysiloxane and the third polysiloxane to improve the physical properties of the encapsulant .

In the moiety represented by Formula 1, the molar ratio of ethylene oxide to propylene oxide, that is, the ratio of x and y, may be about 1: 9 to 9: 1. Preferably, ethylene oxide may be included at a higher ratio than propylene oxide, and x may be greater than y.

The first polysiloxane may be represented, for example, by the following formula (2).

(2)

^{(R 2 R 3 R 4 SiO} 1/2) M1 (R 5 R 6 SiO 2/2) D1 (R 7 R 8 SiO 2/2) D2 (R 9 SiO 3/2) T1 (R 10 SiO 3 / _{^{2) T2 (R 11 SiO 3}} /2) T3 (SiO 4/2) Q1

In Formula 2,

R ² to R ¹¹ are each independently hydrogen, a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C3 to C30 cycloalkyl group, a substituted or unsubstituted C6 to C30 aryl group, a substituted or unsubstituted C7 to C30 aryl group, C30 arylalkyl group, a substituted or unsubstituted C1 to C30 heteroalkyl group, a substituted or unsubstituted C2 to C30 heterocycloalkyl group, a substituted or unsubstituted C2 to C30 alkenyl group, a substituted or unsubstituted C2 to C30 alkynyl group, a substituted Or a substituted or unsubstituted C 1 to C 30 carbonyl group, a hydroxy group, or a combination thereof, or R ^1a (C ₂ H ₄ O) _x (C ₃ H ₆ O) _y R ^1b , wherein R ^1a , R ^1b , x and y are as defined above,

R ² to R ¹¹ And at least one of the _{^{R 1a (C 2 H 4 O}} ) x (C 3 H 6 O) y R 1b,

R ^1a and R ² to R ¹¹ Is hydrogen or a substituted or unsubstituted C2 to C30 alkenyl group,

1, 0? D? 1, 0? D1 <1, 0? T1 <1, 0?

At least one of M1, D1 and T1 is not 0,

M1 + D1 + D2 + T1 + T2 + T3 + Q1 = 1.

The first polysiloxane may be included as an additive in the encapsulating composition, and may include a moiety represented by the formula (1) in the structure as described above to serve as a surface modifier and / or a phosphor dispersant.

The first polysiloxane may be represented by, for example, the following formula (3).

(3)

^{_{(R 9 SiO 3/2)}} T1 (R 10 SiO 3/2) T2 (R 11 SiO 3/2) T3

In Formula 3,

R ⁹ is R ^1a (C ₂ H ₄ O) _x (C ₃ H ₆ O) _y R ^1b , wherein R ^1a , R ^1b , x and y are as described above,

R ¹⁰ and R ¹¹ are each independently hydrogen, a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C3 to C30 cycloalkyl group, a substituted or unsubstituted C6 to C30 aryl group, a substituted or unsubstituted C7 to C30 aryl group, C30 arylalkyl group, a substituted or unsubstituted C1 to C30 heteroalkyl group, a substituted or unsubstituted C2 to C30 heterocycloalkyl group, a substituted or unsubstituted C2 to C30 alkenyl group, a substituted or unsubstituted C2 to C30 alkynyl group, a substituted Or an unsubstituted C1 to C30 alkoxy group, a substituted or unsubstituted C1 to C30 carbonyl group, a hydroxy group or a combination thereof,

R ^1a , R ¹⁰ and R ¹¹ Is hydrogen or a substituted or unsubstituted C2 to C30 alkenyl group,

0 &lt; T1 < 1, 0? T2 <1, 0? T3 <1,

T1 + T2 + T3 = 1.

The first polysiloxane can be obtained by hydrolysis and condensation polymerization of a silane monomer. For example, in the case of the first polysiloxane represented by Formula 3, a monomer represented by R ⁹ SiZ ¹ Z ² Z ³ , a monomer represented by R ¹⁰ SiZ ⁴ Z ⁵ Z ⁶ , and a monomer represented by R ¹¹ SiZ ⁷ Z ⁸ Z ⁹ By hydrolysis and condensation polymerization. Here, the definitions of R ⁹ to R ¹¹ are as defined above, and Z ¹ to Z ⁹ each independently represent a C1 to C6 alkoxy group, a hydroxy group, a halogen group, a carboxyl group, or a combination thereof.

The first polysiloxane may be used singly or in combination of two or more.

Wherein the encapsulant composition comprises at least one third polysiloxane having at least one second polysiloxane having silicon-bonded hydrogen (Si-H) at the ends and at least one third polysiloxane having silicon-bonded alkenyl groups (Si-Vi) And may further include one.

The second polysiloxane and the third polysiloxane may undergo hydrogen silylation reaction. The second polysiloxane and / or the third polysiloxane may also undergo a hydrogen silylation reaction with the first polysiloxane. For example, if the terminal of the first polysiloxane has hydrogen, the first polysiloxane can undergo a hydrogen silylation reaction with at least one third polysiloxane having a silicon-bonded alkenyl group (Si-Vi) When the terminal of the polysiloxane has an alkenyl group, the first polysiloxane can undergo a hydrogen hydrocyanation reaction with at least one second polysiloxane having silicon-bonded hydrogen (Si-H).

The second polysiloxane may be represented by, for example, the following formula (4).

[Chemical Formula 4]

^{(R 12 R 13 R 14 SiO} 1/2) M2 (R 15 R 16 SiO 2/2) D3 (R 17 SiO 3/2) T4 (SiO 3/2 -Y 1 -SiO 3/2) T5 (SiO _{4/2) Q2}

In Formula 4,

R ¹² to R ¹⁷ are each independently hydrogen, a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C3 to C30 cycloalkyl group, a substituted or unsubstituted C6 to C30 aryl group, a substituted or unsubstituted C7 to C30 aryl group, C30 arylalkyl group, a substituted or unsubstituted C1 to C30 heteroalkyl group, a substituted or unsubstituted C2 to C30 heterocycloalkyl group, a substituted or unsubstituted C2 to C30 alkynyl group, a substituted or unsubstituted C1 to C30 alkoxy group, Or an unsubstituted C1 to C30 carbonyl group, a hydroxy group or a combination thereof,

R ¹² to R ¹⁷ Lt; RTI ID = 0.0 &gt; hydrogen, &lt; / RTI &

Y ¹ is a single bond, a substituted or unsubstituted C1 to C20 alkylene group, a substituted or unsubstituted C3 to C20 cycloalkylene group, a substituted or unsubstituted C6 to C20 arylene group, a substituted or unsubstituted C2 to C20 heteroaryl A substituted or unsubstituted C2 to C20 alkenylene group, a substituted or unsubstituted C2 to C20 alkynylene group, or a combination thereof,

0 <T3 <1, 0 <M2 <1, 0 <D3 <

M2 + D3 + T4 + T5 + Q2 = 1.

The second polysiloxane is a compound having silicon-bonded hydrogen (Si-H) at the terminal, and may have an average of at least two silicon-bonded hydrogen (Si-H) per molecule. The silicon-bonded hydrogen (Si-H) may react with an alkenyl group located at the end of the first polysiloxane and / or an alkenyl group located at the end of a third polysiloxane described later.

The second polysiloxane may be, for example, a monomer represented by R ¹² R ¹³ R ¹⁴ SiZ ¹⁰ , a monomer represented by R ¹⁵ R ¹⁶ SiZ ¹¹ Z ¹² , a monomer represented by R ¹⁷ SiZ ¹³ Z ¹⁴ Z ¹⁵ , a Z ¹⁶ Z ¹⁷ Z ¹⁸ Si-Y ¹ -SiZ ¹⁹ Z ²⁰ Z ²¹ and at least one monomer selected from SiZ ²² Z ²³ Z ²⁴ Z ²⁵ , by hydrolysis and condensation polymerization. Here, the definition of R ¹² to R ¹⁷ is as defined above, and each of Z ¹⁰ to Z ²⁵ is independently a C 1 to C 6 alkoxy group, a hydroxy group, a halogen group, a carboxyl group, or a combination thereof.

R ¹² to R ¹⁷ May include a substituted or unsubstituted C6 to C30 aryl group. Accordingly, the refractive index can be increased to secure optical characteristics.

The second polysiloxane may be used singly or in combination of two or more.

The third polysiloxane may be represented, for example, by the following formula (5).

[Chemical Formula 5]

^{(R 18 R 19 R 20 SiO} 1/2) M3 (R 21 R 22 SiO 2/2) D4 (R 23 SiO 3/2) T6 (SiO 3/2 -Y 2 -SiO 3/2) T7 (SiO _{4/2) Q3}

In Formula 5,

R ¹⁸ to R ²³ each independently represent a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C3 to C30 cycloalkyl group, a substituted or unsubstituted C6 to C30 aryl group, a substituted or unsubstituted C7 to C30 aryl Substituted or unsubstituted C1 to C30 heteroalkyl groups, substituted or unsubstituted C2 to C30 heterocycloalkyl groups, substituted or unsubstituted C2 to C30 alkenyl groups, substituted or unsubstituted C2 to C30 alkynyl groups, A substituted or unsubstituted C1 to C30 alkoxy group, a substituted or unsubstituted C1 to C30 carbonyl group, a hydroxy group or a combination thereof,

At least one of R ¹⁸ to R ²³ includes a substituted or unsubstituted C2 to C30 alkenyl group,

Y ² represents a single bond, a substituted or unsubstituted C1 to C20 alkylene group, a substituted or unsubstituted C3 to C20 cycloalkylene group, a substituted or unsubstituted C6 to C20 arylene group, a substituted or unsubstituted C2 to C20 heteroaryl A substituted or unsubstituted C2 to C20 alkenylene group, a substituted or unsubstituted C2 to C20 alkynylene group, or a combination thereof,

0 &lt; T3 < 1, 0 <

M3 + D4 + T6 + T7 + Q3 = 1.

The third polysiloxane is a compound having a silicon-bonded alkenyl group (Si-Vi) at the terminal, and may have an average of at least two silicon-bonded alkenyl groups (Si-Vi) per molecule. The silicon-bonded alkenyl group (Si-Vi) may react with hydrogen located at the end of the first polysiloxane and / or hydrogen located at the end of the second polysiloxane.

The second polysiloxane may be, for example, a monomer represented by R ¹⁸ R ¹⁹ R ²⁰ SiZ ²⁶ , a monomer represented by R ²¹ R ²² SiZ ²⁷ Z ²⁸ , a monomer represented by R ²³ SiZ ²⁹ Z ³⁰ Z ³¹ , a Z ³² Z ³³ Z ³⁴ Si-Y ² -SiZ ³⁵ Z ³⁶ Z ³⁷ and at least one monomer selected from the group consisting of SiZ ³⁸ Z ³⁹ Z ⁴⁰ Z ⁴¹ . Here, the definition of R ¹⁸ to R ²³ is as defined above, and each of Z ²⁶ to Z ⁴¹ is independently a C 1 to C 6 alkoxy group, a hydroxy group, a halogen group, a carboxyl group, or a combination thereof.

The R ¹⁸ to R ²³ May include a substituted or unsubstituted C6 to C30 aryl group. Accordingly, the refractive index can be increased to secure optical characteristics.

The third polysiloxane may be used singly or in combination of two or more.

The weight average molecular weights of the second polysiloxane and the third polysiloxane may be about 100 to 30,000 g / mol, respectively.

The second polysiloxane may comprise less than about 50 weight percent of the total amount of the second polysiloxane and the third polysiloxane and the third polysiloxane may comprise less than about 50 weight percent of the second polysiloxane and the third polysiloxane, May be included in excess of% by weight.

The first polysiloxane may be included in an amount of about 0.01 to 20 wt% based on the total amount of the encapsulant composition. By the inclusion in the above range, the sulfur content and color dispersion can be improved more effectively without affecting the physical properties of the encapsulant such as refractive index, transmittance and hardness. Within this range, about 0.1 to 5% by weight may be included.

The encapsulant composition may further comprise a filler.

The filler may be made of, for example, an inorganic oxide, and may include, for example, silica, alumina, titanium oxide, zinc oxide, or a combination thereof.

The encapsulant composition may further comprise a hydrogen sacylation catalyst.

The hydrogen silylation catalyst may catalyze the hydrogen silylation reaction of the first polysiloxane, the second polysiloxane and the third polysiloxane, and may include, for example, platinum, rhodium, palladium, ruthenium, iridium or combinations thereof .

The hydrocyanation catalyst may comprise from about 0.1 ppm to about 1000 ppm based on the total amount of the encapsulant composition.

The encapsulant composition can be used as an encapsulant by curing by heat treatment at a predetermined temperature. The encapsulant can be applied to electronic devices such as light emitting diodes and organic light emitting devices.

Hereinafter, a light emitting diode according to one embodiment will be described with reference to FIG. 1 as an example of an electronic device to which a sealing material is applied.

1 is a cross-sectional view schematically illustrating a light emitting diode according to one embodiment.

1, the light emitting diode includes a mold 110; A lead frame 120 disposed within the mold 110; A light emitting diode chip 140 mounted on the lead frame 120; A bonding wire 150 connecting the lead frame 120 and the light emitting diode chip 140; And an encapsulant 200 covering the light emitting diode chip 140.

The encapsulant 200 is obtained by curing the encapsulant composition described above. The encapsulant 200 is formed from the encapsulant composition described above, thereby effectively protecting the LED chip 140 and preventing degradation of the performance of the LED.

The encapsulant 200 may have the phosphor 190 dispersed therein. The phosphor 190 includes a material that is stimulated by light and emits light of a specific wavelength range by itself, and broadly includes a quantum dot such as a semiconductor nanocrystal. The phosphor 190 may be, for example, a blue phosphor, a green phosphor, or a red phosphor, and may be a mixture of two or more types.

The phosphor 190 may display a color of a predetermined wavelength region by the light supplied from the light emitting diode chip 140 as a light emitting portion. At this time, the light emitting diode chip 140 has a shorter wavelength region Can be displayed. For example, when the phosphor 190 displays a red color, the light emitting diode chip 140 can supply blue or green light having a shorter wavelength region than the red color.

As described above, the first polysiloxane can improve the dispersibility of the phosphor 180 in the encapsulant 200 and improve the color dispersion.

The color emitted from the light emitting diode chip 140 and the color emitted from the phosphor 190 may be combined to display a white color. For example, when the light emitting diode chip 140 supplies blue light and the phosphor 190 includes a red phosphor and a green phosphor, the electronic device may display a white color by combining blue, red, and green.

The phosphor 190 may be omitted.

Hereinafter, embodiments of the present invention will be described in detail with reference to examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

1st Polysiloxane  synthesis

Synthetic example  One

Step 1:

1 kg of a mixed solvent obtained by mixing water and toluene in a weight ratio of 5: 5 was introduced into a three-necked flask, and trimethoxysilane and an ethylene oxide / propylene oxide-containing monomer represented by the following formula (1a) : 2 molar ratio was added together with the Pt catalyst.

[Formula 1a]

CH ₂ = CHCH ₂ (CH ₂ CH ₂ O) _x (CH ₃ CHCH ₂ O) _y CH ₃ (the ratio of x and y is 2: 8)

After completion of the addition, the hydrosilylation reaction was carried out while heating at 60 ° C for 1 hour. After cooling to room temperature, the water layer was removed to prepare a monomolecular solution dissolved in toluene. The catalyst in the resulting monomolecular solution was then removed using a column. Subsequently, the monomolecular solution was distilled under reduced pressure to remove toluene to obtain a compound represented by the following formula (1b).

[Chemical Formula 1b]

_{CH 3 (CH 3 CHCH 2 O} ) y (CH 2 CH 2 O) x CH 2 CH 2 CH 2 SiO 3/2 ( the ratio of x and y is 2: 8 Im)

Step 2:

1 kg of a mixed solvent in which water and toluene were mixed in a weight ratio of 5: 5 was introduced into a three-necked flask, and the compound represented by the above formula (1b), phenyltrichlorosilane and vinyltrichlorosilane, At a molar ratio of 30:30:40, was added together with the catalyst KOH. After completion of the addition, condensation polymerization was carried out while heating at 75 DEG C for 5 hours. After cooling to room temperature, the water layer was removed to prepare a polymer solution dissolved in toluene. Then, the resulting polymer solution was washed with water to remove the catalyst. Subsequently, the polymer solution was distilled under reduced pressure to remove toluene to obtain a liquid polysiloxane represented by the following formula (2a).

(2a)

_{(CH 3 (CH 3 CHCH 2} O) y (CH 2 CH 2 O) x CH 2 CH 2 CH 2 SiO 3/2) 0.3 (PhSiO 3/2) 0.3 (ViSiO 3/2) 0.4

(the ratio of x and y is 2: 8)

Synthetic example  2

Synthesis was carried out in the same manner as in Synthesis Example 1 except that the compound represented by Formula 1b, phenyltrichlorosilane and vinyltrichlorosilane were used in a molar ratio of 40:20:40 to obtain a liquid polysiloxane represented by Formula 2b.

(2b)

_{(CH 3 (CH 3 CHCH 2} O) y (CH 2 CH 2 O) x CH 2 CH 2 CH 2 SiO 3/2) 0.4 (PhSiO 3/2) 0.2 (ViSiO 3/2) 0.4

(the ratio of x and y is 2: 8)

Synthetic example  3

A liquid polysiloxane represented by the following formula (2c) was obtained by synthesizing in the same manner as in Synthesis Example 1, except that the ratio of ethylene oxide / propylene oxide, that is, the ratio of x and y was 8: 2.

[Chemical Formula 2c]

_{(CH 3 (CH 3 CHCH 2} O) y (CH 2 CH 2 O) x CH 2 CH 2 CH 2 SiO 3/2) 0.3 (PhSiO 3/2) 0.3 (ViSiO 3/2) 0.4

(the ratio of x and y is 8: 2)

Synthetic example  4

A compound represented by the above formula (1b), phenyltrichlorosilane and vinyl trichlorosilane was used in a molar ratio of 40:20:40 using a monomer having an ethylene oxide / propylene oxide ratio of x: y of 8: 2 Was synthesized in the same manner as in Synthesis Example 1 to obtain a liquid polysiloxane represented by the following Formula 2d.

(2d)

_{(CH 3 (CH 3 CHCH 2} O) y (CH 2 CH 2 O) x CH 2 CH 2 CH 2 SiO 3/2) 0.4 (PhSiO 3/2) 0.2 (ViSiO 3/2) 0.4

(the ratio of x and y is 8: 2)

Second Polysiloxane  synthesis

Synthetic example  5

1 kg of a mixed solvent prepared by mixing water and toluene at a weight ratio of 5: 5 was introduced into a three-necked flask, and dimethylchlorosilane and diphenyldichlorosilane were added to the monomer at a molar ratio of 10:90 Was added dropwise over 2 hours. After completion of the dropwise addition, condensation polymerization reaction was carried out while refluxing at 90 ° C for 3 hours. After cooling to room temperature, the water layer was removed to prepare a polymer solution dissolved in toluene. The resulting polymer solution was washed with water to remove chlorine as a by-product of the reaction. Subsequently, the neutral polymer solution was distilled under reduced pressure to remove toluene to obtain a liquid polysiloxane represented by the following formula (4a).

[Chemical Formula 4a]

_{(Me 2 HSiO 1/2)} 0.1 (Ph 2 SiO 2/2) 0.9

Third Polysiloxane  synthesis

Synthetic example  6

1 kg of a mixed solvent in which water and toluene were mixed at a weight ratio of 5: 5 was charged into a three-necked flask, and vinyldimethylchlorosilane and phenyltrichlorosilane were mixed as a monomer at a molar ratio of 10:90 Was added dropwise over 2 hours. After completion of the dropwise addition, condensation polymerization reaction was carried out while refluxing at 90 ° C for 3 hours. After cooling to room temperature, the water layer was removed to prepare a polymer solution dissolved in toluene. The resulting polymer solution was washed with water to remove chlorine as a by-product of the reaction. Subsequently, the neutral polymer solution was distilled under reduced pressure to remove toluene to obtain a liquid polysiloxane represented by the following Chemical Formula 5a.

[Chemical Formula 5a]

_{(Me 2 ViSiO 1/2)} 0.1 (PhSiO 3/2) 0.9

Encapsulant  Preparation of composition

Example  One

1% by weight of the first polysiloxane obtained in Synthesis Example 1, 20% by weight of the second polysiloxane obtained in Synthesis Example 5 and 79% by weight of the third polysiloxane obtained in Synthesis Example 6, and a hydrogenation catalyst Pt-CS 2.0 (manufactured by Umicore) Pt was added so as to have a content of 5 ppm) were mixed and defoamed in vacuo to prepare a sealant composition.

Example  2

1% by weight of the first polysiloxane obtained in Synthesis Example 2, 20% by weight of the second polysiloxane obtained in Synthesis Example 5 and 79% by weight of the third polysiloxane obtained in Synthesis Example 6, and a hydrogenation catalyst Pt-CS 2.0 (manufactured by Umicore) Pt was added so as to have a content of 5 ppm) were mixed and defoamed in vacuo to prepare a sealant composition.

Example  3

1% by weight of the first polysiloxane obtained in Synthesis Example 3, 20% by weight of the second polysiloxane obtained in Synthesis Example 5 and 79% by weight of the third polysiloxane obtained in Synthesis Example 6, and a hydrogenation catalyst Pt-CS 2.0 (manufactured by Umicore) Pt was added so as to have a content of 5 ppm) were mixed and defoamed in vacuo to prepare a sealant composition.

Example  4

1% by weight of the first polysiloxane obtained in Synthetic Example 4, 20% by weight of the second polysiloxane obtained in Synthetic Example 5 and 79% by weight of the third polysiloxane obtained in Synthetic Example 6 and a hydrogen silylation catalyst Pt-CS 2.0 (manufactured by Umicore) Pt was added so as to have a content of 5 ppm) were mixed and defoamed in vacuo to prepare a sealant composition.

Example  5

3% by weight of the first polysiloxane obtained in Synthesis Example 1, 20% by weight of the second polysiloxane obtained in Synthesis Example 5 and 77% by weight of the third polysiloxane obtained in Synthesis Example 6, and a hydrogenation catalyst Pt-CS 2.0 (manufactured by Umicore) Pt was added so as to have a content of 5 ppm) were mixed and defoamed in vacuo to prepare a sealant composition.

Example  6

3% by weight of the first polysiloxane obtained in Synthesis Example 2, 20% by weight of the second polysiloxane obtained in Synthesis Example 5 and 77% by weight of the third polysiloxane obtained in Synthesis Example 6, and a hydrogenation catalyst Pt-CS 2.0 (manufactured by Umicore) Pt was added so as to have a content of 5 ppm) were mixed and defoamed in vacuo to prepare a sealant composition.

Example  7

3% by weight of the first polysiloxane obtained in Synthesis Example 3, 20% by weight of the second polysiloxane obtained in Synthesis Example 5, 77% by weight of the third polysiloxane obtained in Synthesis Example 6, and hydrogen hydrogenation catalyst Pt-CS 2.0 (manufactured by Umicore) Pt was added so as to have a content of 5 ppm) were mixed and defoamed in vacuo to prepare a sealant composition.

Example  8

3% by weight of the first polysiloxane obtained in Synthesis Example 4, 20% by weight of the second polysiloxane obtained in Synthesis Example 5, 77% by weight of the third polysiloxane obtained in Synthesis Example 6, and hydrogen sacylation catalyst Pt-CS 2.0 (manufactured by Umicore) Pt was added so as to have a content of 5 ppm) were mixed and defoamed in vacuo to prepare a sealant composition.

Comparative Example  One

20% by weight of the second polysiloxane obtained in Synthetic Example 5, 80% by weight of the third polysiloxane obtained in Synthetic Example 6, and a hydrogen silylation catalyst Pt-CS 2.0 (manufactured by Umicore) (content of Pt was added so as to be 5 ppm) Followed by defoaming in vacuo to prepare an encapsulant composition.

evaluation

The index of refraction, hardness, color dispersion, and yellowing resistance of the sealing composition according to Examples 1 to 8 and Comparative Example 1 were evaluated.

The refractive indexes of the encapsulant compositions according to Examples 1 to 8 and Comparative Example 1 were measured under the D-line (589 nm) wavelength using an Abbe refractive index meter.

The hardness was measured by placing the sealing composition according to Examples 1 to 8 and Comparative Example 1 in a mold (2.5 cm (width) x 7.5 cm (length) x 1 cm (thickness)) coated with Teflon and heating at 80 DEG C for 1 hour, 120 DEG C For 1 hour and at 160 DEG C for 1 hour, then cooled to room temperature, and the hardness was measured using a Shore A hardness tester.

The color dispersion was measured by the following method.

The packages coated with encapsulant are placed in a curing oven and thermoset at 80 ° C for 1 hour, 120 ° C for 1 hour and 160 ° C for 1 hour, and then the package is trimmed. The luminance was then measured using an integrating sphere (Instrument Systems, CAS 140 CT), and the scattering of the measured values in the color coordinates was determined. The color scattering degree of the sealing material composition according to Examples 1 to 8 was evaluated with the sealing material composition according to Comparative Example 1 as a reference (100%).

The sulfur content was measured by the following method.

The encapsulant compositions according to Examples 1 to 8 and Comparative Example 1 were put into a mold (2.5 cm (width) x 7.5 cm (length) x 1 cm (thickness)) coated with Teflon together with the phosphor and cured at 150 ° C for 2 hours And cooled to room temperature to prepare a package sample. The initial luminance of the package sample was then measured using an integration sphere (Instrument Systems, CAS 140 CT). Next, prepare a sulfur mixture containing 0.7 g of K ₂ S and 50 g of H ₂ O in a 250 ml glass bottle. Then, the glass bottle and the package sample were placed at the lower and upper ends of a 50 ° C water bath, respectively, and left for 8 hours. Then, the package sample was taken out to measure the luminance and the sulfur content was evaluated from the difference with the initial luminance.

The results are shown in Table 1.

Refractive index Hardness (Shore A) Color Scattering (%) Sulfur content (%) Example 1 1.530-1.540 90 74 -15 Example 2 1.530-1.540 90 58 -11 Example 3 1.530-1.540 90 55 -8 Example 4 1.530-1.540 90 47 -10 Example 5 1.530-1.540 90 46 -13 Example 6 1.530-1.540 90 52 -12 Example 7 1.530-1.540 90 40 -6 Example 8 1.530-1.540 90 45 -10 Comparative Example 1 1.530-1.540 90 100 -17

Referring to Table 1, it can be seen that the encapsulant compositions according to Examples 1 to 8 have remarkably improved color dispersion and harshness while maintaining the refractive index and hardness at the same level as those of the encapsulant composition according to Comparative Example 1 .

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, And falls within the scope of the invention.

110: mold 120: frame
140: light emitting diode chip 150: bonding wire
200: sealing material

Claims (15)

1. A sealant composition comprising a first polysiloxane having a moiety represented by the following formula (1): &lt; EMI ID =
[Chemical Formula 1]
R ^1a (C ₂ H ₄ O) _x (C ₃ H ₆ O) _y R ^1b SiO _{n / 2}
In Formula 1,
R ^1a is hydrogen, a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C3 to C30 cycloalkyl group, a substituted or unsubstituted C6 to C30 aryl group, a substituted or unsubstituted C7 to C30 arylalkyl group, A substituted or unsubstituted C1 to C30 heteroalkyl group, a substituted or unsubstituted C2 to C30 heterocycloalkyl group, a substituted or unsubstituted C2 to C30 alkenyl group, a substituted or unsubstituted C2 to C30 alkynyl group, C30 alkoxy group, a substituted or unsubstituted C1 to C30 carbonyl group, a hydroxy group or a combination thereof,
R ^1b represents a single bond, a substituted or unsubstituted C1 to C30 alkylene group, a substituted or unsubstituted C3 to C30 cycloalkylene group, a substituted or unsubstituted C6 to C30 arylene group, a substituted or unsubstituted C7 to C30 arylalkyl A substituted or unsubstituted C1 to C30 heteroalkylene group, a substituted or unsubstituted C2 to C30 heterocycloalkylene group, or a combination thereof,
n is an integer of 1 to 3,
100, 0 &lt; / = y &lt; = 100,
x and y are not 0 at the same time.
The method of claim 1,
Wherein the ratio of x and y is 1: 9 to 9: 1.
3. The method of claim 2,
Wherein x is greater than y.
The method of claim 1,
Wherein the first polysiloxane is represented by the following formula (2): < EMI ID =
(2)
^{(R 2 R 3 R 4 SiO} 1/2) M1 (R 5 R 6 SiO 2/2) D1 (R 7 R 8 SiO 2/2) D2 (R 9 SiO 3/2) T1 (R 10 SiO 3 / _{^{2) T2 (R 11 SiO 3}} /2) T3 (SiO 4/2) Q1
In Formula 2,
R ² to R ¹¹ are each independently hydrogen, a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C3 to C30 cycloalkyl group, a substituted or unsubstituted C6 to C30 aryl group, a substituted or unsubstituted C7 to C30 aryl group, C30 arylalkyl group, a substituted or unsubstituted C1 to C30 heteroalkyl group, a substituted or unsubstituted C2 to C30 heterocycloalkyl group, a substituted or unsubstituted C2 to C30 alkenyl group, a substituted or unsubstituted C2 to C30 alkynyl group, a substituted Or a substituted or unsubstituted C1 to C30 carbonyl group, a hydroxy group, or a combination thereof, or R ^1a (C ₂ H ₄ O) _x (C ₃ H ₆ O) _y R ^1b , wherein R ^1a , ^R1b , x and y are as defined in claim 1,
R ² to R ¹¹ And at least one of the _{^{R 1a (C 2 H 4 O}} ) x (C 3 H 6 O) y R 1b,
R ^1a and R ² to R ¹¹ Is hydrogen or a substituted or unsubstituted C2 to C30 alkenyl group,
1, 0? D? 1, 0? D1 <1, 0? T1 <1, 0?
At least one of M1, D1 and T1 is not 0,
M1 + D1 + D2 + T1 + T2 + T3 + Q1 = 1.
5. The method of claim 4,
Wherein the first polysiloxane is represented by the following Formula 3:
(3)
_{^{(R 9 SiO 3/2)}} T1 (R 10 SiO 3/2) T2 (R 11 SiO 3/2) T3
In Formula 3,
R ⁹ is R ^1a (C ₂ H ₄ O) _x (C ₃ H ₆ O) _y R ^1b , wherein R ^1a , R ^1b , x and y are as defined in claim 1,
R ¹⁰ and R ¹¹ are each independently hydrogen, a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C3 to C30 cycloalkyl group, a substituted or unsubstituted C6 to C30 aryl group, a substituted or unsubstituted C7 to C30 aryl group, C30 arylalkyl group, a substituted or unsubstituted C1 to C30 heteroalkyl group, a substituted or unsubstituted C2 to C30 heterocycloalkyl group, a substituted or unsubstituted C2 to C30 alkenyl group, a substituted or unsubstituted C2 to C30 alkynyl group, a substituted Or an unsubstituted C1 to C30 alkoxy group, a substituted or unsubstituted C1 to C30 carbonyl group, a hydroxy group or a combination thereof,
R ^1a , R ¹⁰ and R ¹¹ Is hydrogen or a substituted or unsubstituted C2 to C30 alkenyl group,
0 &lt; T1 < 1, 0? T2 <1, 0? T3 <1,
T1 + T2 + T3 = 1.
5. The method of claim 4,
Further comprising at least one of at least one third polysiloxane having silicon-bonded hydrogen (Si-H) at the end and at least one third polysiloxane having silicon-bonded alkenyl groups (Si-Vi) Sealing composition.
The method of claim 6,
Wherein the second polysiloxane is represented by the following Formula 4:
[Chemical Formula 4]
^{(R 12 R 13 R 14 SiO} 1/2) M2 (R 15 R 16 SiO 2/2) D3 (R 17 SiO 3/2) T4 (SiO 3/2 -Y 1 -SiO 3/2) T5 (SiO _{4/2) Q2}
In Formula 4,
R ¹² to R ¹⁷ are each independently hydrogen, a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C3 to C30 cycloalkyl group, a substituted or unsubstituted C6 to C30 aryl group, a substituted or unsubstituted C7 to C30 aryl group, C30 arylalkyl group, a substituted or unsubstituted C1 to C30 heteroalkyl group, a substituted or unsubstituted C2 to C30 heterocycloalkyl group, a substituted or unsubstituted C2 to C30 alkynyl group, a substituted or unsubstituted C1 to C30 alkoxy group, Or an unsubstituted C1 to C30 carbonyl group, a hydroxy group or a combination thereof,
R ¹² to R ¹⁷ Lt; RTI ID = 0.0 &gt; hydrogen, < / RTI &
Y ¹ is a single bond, a substituted or unsubstituted C1 to C20 alkylene group, a substituted or unsubstituted C3 to C20 cycloalkylene group, a substituted or unsubstituted C6 to C20 arylene group, a substituted or unsubstituted C2 to C20 heteroaryl A substituted or unsubstituted C2 to C20 alkenylene group, a substituted or unsubstituted C2 to C20 alkynylene group, or a combination thereof,
0 <T3 <1, 0 <M2 <1, 0 <D3 <
M2 + D3 + T4 + T5 + Q2 = 1.
8. The method of claim 7,
R ¹² to R ¹⁷ Is a substituted or unsubstituted C6 to C30 aryl group.
The method of claim 6,
Wherein the third polysiloxane is represented by the following formula (5): &lt; EMI ID =
[Chemical Formula 5]
^{(R 18 R 19 R 20 SiO} 1/2) M3 (R 21 R 22 SiO 2/2) D4 (R 23 SiO 3/2) T6 (SiO 3/2 -Y 2 -SiO 3/2) T7 (SiO _{4/2) Q3}
In Formula 5,
R ¹⁸ to R ²³ each independently represent a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C3 to C30 cycloalkyl group, a substituted or unsubstituted C6 to C30 aryl group, a substituted or unsubstituted C7 to C30 aryl Substituted or unsubstituted C1 to C30 heteroalkyl groups, substituted or unsubstituted C2 to C30 heterocycloalkyl groups, substituted or unsubstituted C2 to C30 alkenyl groups, substituted or unsubstituted C2 to C30 alkynyl groups, A substituted or unsubstituted C1 to C30 alkoxy group, a substituted or unsubstituted C1 to C30 carbonyl group, a hydroxy group or a combination thereof,
At least one of R ¹⁸ to R ²³ includes a substituted or unsubstituted C2 to C30 alkenyl group,
Y ² represents a single bond, a substituted or unsubstituted C1 to C20 alkylene group, a substituted or unsubstituted C3 to C20 cycloalkylene group, a substituted or unsubstituted C6 to C20 arylene group, a substituted or unsubstituted C2 to C20 heteroaryl A substituted or unsubstituted C2 to C20 alkenylene group, a substituted or unsubstituted C2 to C20 alkynylene group, or a combination thereof,
0 < T3 < 1, 0 <
M3 + D4 + T6 + T7 + Q3 = 1.
The method of claim 9,
The R ¹⁸ to R ²³ Is a substituted or unsubstituted C6 to C30 aryl group.
The method of claim 6,
Said second polysiloxane comprises less than 50% by weight based on the total amount of said second polysiloxane and said third polysiloxane,
Wherein the third polysiloxane is present in an amount greater than 50% by weight based on the total content of the second polysiloxane and the third polysiloxane
Sealing composition.
The method of claim 6,
Wherein the first polysiloxane is contained in an amount of 0.01 to 20% by weight based on the total content of the encapsulation material.
The method of claim 12,
Wherein the first polysiloxane is included in an amount of 0.1 to 5% by weight based on the total amount of the encapsulation material.
An encapsulating material obtained by curing the encapsulating material composition according to any one of claims 1 to 13.
An electronic device comprising an encapsulant according to claim 14.

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