# US 2014/0191161 A1 · Curable Silicon Composition, Cured Product Thereof, And Optical Semiconductor Device

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- Number: US 2014/0191161 A1
- Document ID: US20140191161A1
- Status: Published application
- Kind: A1
- Application number: 14/131,331
- Filed: 2012-07-04
- Published: 2014-07-10
- Earliest claimed: 2011-07-07
- Inventors: Masaaki Amako; Tadashi Okawa; Tomohiro Iimura; Kazuhiro Nishijima; Maki Itoh; Yoshitsugu Morita
- Web page: https://patentgrep.com/patent/US20140191161A1

## CPC

- C08G 77/04: Polysiloxanes
- C08G 77/12: containing silicon bound to hydrogen
- C08L 83/04: Polysiloxanes
- C09K 11/08: containing inorganic luminescent materials
- H10W 74/476: {Organic materials comprising silicon}
- H10W 76/47: Solid or gel fillings
- C08G 77/045: {containing less than 25 silicon atoms}
- C08G 77/20: containing silicon bound to unsaturated aliphatic groups
- C08G 77/80: {Siloxanes having aromatic substituents, e.g. phenyl side groups}
- C08L 83/00: Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
- C09J 183/04: Polysiloxanes
- H10H 20/8512: {Wavelength conversion materials}
- H10W 74/00: Encapsulations, e.g. protective coatings
- H10W 90/756: {between a chip and a stacked lead frame, conducting package substrate or heat sink}
- C08G: MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06)
- C09K: MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- H10W: GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- C09J: ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES (preparation of glue or gelatine C09H)
- H10H: INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS

## Abstract

A hydrosilylation curable silicone composition that forms a cured product with a high refractive index, high transparency, excellent heat resistance, and excellent flexibility, the hydrosilylation curable silicone composition comprising, as a main component, an organopolysiloxane represented by the following average unit formula: (R13SiO1/2)a(R12SiO2/2)b(R2SiO3/2)c(SiO4/2)d wherein, R1 are alkyl groups, alkenyl groups, phenyl groups, or hydrogen atoms; R2 is a group recited for R1, a condensed polycyclic aromatic group, or a group containing a condensed polycyclic aromatic group, provided that at least one of R1 or R2 in a molecule is an alkenyl group or hydrogen atom, and at least one R2 in a molecule is a condensed polycyclic aromatic group or a group containing a condensed polycyclic aromatic group; and a, b, c, and d are numbers satisfying: 0.01≦a≦0.8, 0≦b≦0.5, 0.2≦c≦0.9, 0≦d<0.2, and a+b+c+d=1.

## Claims

### Claim 1

A hydrosilylation curable silicone composition comprising, as a main component, an organopolysiloxane represented by an average unit formula:
(R13SiO1/2)a(R12SiO2/2)b(R2SiO3/2)c(SiO4/2)d
wherein, R1 are each independently alkyl groups, alkenyl groups, phenyl groups, or hydrogen atoms; R2 is a group recited for R1, a condensed polycyclic aromatic group, or a group containing a condensed polycyclic aromatic group, provided that at least one of R1 or R2 in a molecule is an alkenyl group or hydrogen atom, and at least one R2 in a molecule is a condensed polycyclic aromatic group or a group containing a condensed polycyclic aromatic group; and a, b, c, and d are numbers satisfying: 0.01≦a≦0.8, 0≦b≦0.5, 0.2≦c≦0.9, 0≦d<0.2, and a+b+c+d=1.

### Claim 2 (depends on 1)

The curable silicone composition according to claim 1, wherein at least 50 mol % of R2 in a molecule are condensed polycyclic aromatic groups or groups containing condensed polycyclic aromatic groups.

### Claim 3 (depends on 1)

The curable silicone composition according to claim 1, wherein the condensed polycyclic aromatic group is a naphthyl group.

### Claim 4

A curable silicone composition comprising at least:
(A) an organopolysiloxane represented by the following average unit formula:
(R113SiO1/2)a(R112SiO2/2)b(R21SiO3/2)c(SiO4/2)d
wherein, R11 are each independently alkyl groups, alkenyl groups, or phenyl groups; R21 is a group recited for R11, a condensed polycyclic aromatic group, or a group containing a condensed polycyclic aromatic group, provided that at least one of R11 or R21 in a molecule is an alkenyl group, and at least one R21 in a molecule is a condensed polycyclic aromatic group or a group containing a condensed polycyclic aromatic group; and a, b, c, and d are numbers satisfying: 0.01≦a≦0.8, 0≦b≦0.5, 0.2≦c≦0.9, 0≦d<0.2, and a+b+c+d=1;
(B) an organopolysiloxane having at least two silicon-bonded hydrogen atoms in a molecule; and
(C) a hydrosilylation reaction catalyst.

### Claim 5

A curable silicone composition comprising at least:
(D) an organopolysiloxane represented by the following average unit formula:
(R123SiO1/2)a(R122SiO2/2)b(R22SiO3/2)c(SiO4/2)d
wherein, R12 are each independently alkyl groups, phenyl groups, or hydrogen atoms; R22 is a group recited for R12, a condensed polycyclic aromatic group, or a group containing a condensed polycyclic aromatic group, provided that at least one of R12 or R22 in a molecule is a hydrogen atom, and at least one R22 in a molecule is a condensed polycyclic aromatic group or a group containing a condensed polycyclic aromatic group; and a, b, c, and d are numbers satisfying: 0.01≦a≦0.8, 0≦b≦0.5, 0.2≦c≦0.9, 0≦d<0.2, and a+b+c+d=1;
(E) an organopolysiloxane having at least two alkenyl groups in a molecule; and
(C) a hydrosilylation reaction catalyst.

### Claim 6

A curable silicone composition comprising at least:
(A) an organopolysiloxane represented by the following average unit formula:
(R113SiO1/2)a(R112SiO2/2)b(R21SiO3/2)c(SiO4/2)d
wherein, R11 are each independently alkyl groups, alkenyl groups, or phenyl groups; R21 is a group recited for R11, a condensed polycyclic aromatic group, or a group containing a condensed polycyclic aromatic group, provided that at least one of R11 or R21 in a molecule is an alkenyl group, and at least one R21 in a molecule is a condensed polycyclic aromatic group or a group containing a condensed polycyclic aromatic group; and a, b, c, and d are numbers satisfying: 0.01≦a≦0.8, 0≦b≦0.5, 0.2≦c≦0.9, 0≦d<0.2, and a+b+c+d=1;
(D) an organopolysiloxane represented by the following average unit formula:
(R123SiO1/2)a(R122SiO2/2)b(R22SiO3/2)c(SiO4/2)d
wherein, R12 are each independently alkyl groups, phenyl groups, or hydrogen atoms; R22 is a group recited for R12, a condensed polycyclic aromatic group, or a group containing a condensed polycyclic aromatic group, provided that at least one of R12 or R22 in a molecule is a hydrogen atom, and at least one R22 in a molecule is a condensed polycyclic aromatic group or a group containing a condensed polycyclic aromatic group; and a, b, c, and d are numbers satisfying: 0.01≦a≦0.8, 0≦b≦0.5, 0.2≦c≦0.9, 0≦d<0.2, and a+b+c+d=1; and
(C) a hydrosilylation reaction catalyst.

### Claim 7 (depends on 1)

The curable silicone composition according to claim 1, further comprising a fluorescent substance.

### Claim 8 (depends on 1)

A cured product produced by curing the curable silicone composition described in claim 1.

### Claim 9 (depends on 1)

An optical semiconductor device formed by covering or sealing an optical semiconductor element with the curable silicone composition described in claim 1.

### Claim 10 (depends on 2)

The curable silicone composition according to claim 2, wherein the condensed polycyclic aromatic group is a naphthyl group.

### Claim 11 (depends on 4)

The curable silicone composition according to claim 4, further comprising a fluorescent substance.

### Claim 12 (depends on 5)

The curable silicone composition according to claim 5, further comprising a fluorescent substance.

### Claim 13 (depends on 6)

The curable silicone composition according to claim 6, further comprising a fluorescent substance.

### Claim 14 (depends on 1)

The curable silicone composition according to claim 1, further comprising an adhesion-imparting agent.

### Claim 15 (depends on 1)

The curable silicone composition according to claim 1, further comprising a reaction inhibitor.