Curable composition, cured product, method for using curable composition, photoelement sealing body and method for producing photoelement sealing body

Patent metadata

Field	Value
Publication number	US-9783715-B2
Application number	US-201414771020-A
Country	US
Kind code	B2
Filing date	Feb 27, 2014
Priority date	Feb 28, 2013
Publication date	Oct 10, 2017
Grant date	Oct 10, 2017

Abstract

The present invention relates to: a curable composition comprising a component (A), a component (B), and a component (C), the curable composition comprising the component (A) and the component (B) in a mass ratio (component (A):component (B)) of 100:0.3 to 100:30, a cured product obtained by curing the curable composition, a method for using the curable composition as an optical device-securing adhesive or an optical device sealing material. The present invention provides a curable composition that produces a cured product that exhibits excellent transparency, excellent heat resistance, excellent crack resistance, and high adhesion, a cured product obtained by curing the curable composition, a method for using the curable composition as an optical device-securing adhesive or an optical device sealing material, a sealed optical device in which an optical device is sealed with a cured product of the curable composition, and a method for producing the same. Component (A): a silane compound copolymer (I) that is represented by a formula (a-1), wherein R 1 is a hydrogen atom or the like, X 0 is a halogen atom, a cyano group, or a group represented by OG (wherein G is a protecting group for a hydroxyl group), D is a single bond or the like, R 2 is an alkyl group having 1-20 carbon atoms or the like, Z is a hydroxyl group, an alkoxy group having 1-10 carbon atoms, or a halogen atom, m and n are a positive integer, and o, p, q, and r are 0 or a positive integer, Component (B): at least one silane coupling agent selected from a silane coupling agent that includes a nitrogen atom in its molecule and a silane coupling agent that includes an epoxy group in its molecule, and Component (C): a silane coupling agent that has an acid anhydride structure.

(CHR 1 X 0 -D-SiO 3/2 ) m (R 2 SiO 3/2 ) n (CHR 1 X 0 -D-SiZO 2/2 ) o (R 2 SiZO 2/2 ) p (CHR 1 X 0 -D-SiZ 2 O 1/2 ) q (R 2 SiZ 2 O 1/2 ) r    (a-1)

First claim

The invention claimed is:

1. A curable composition comprising a component (A), a component (B), and a component (C), the curable composition comprising the component (A) and the component (B) in a mass ratio (component (A):component (B)) of 100:10 to 100:30,
the component (A) being a silane compound copolymer (I) that is represented by a formula (a-1),
(CHR 1 X 0 -D-SiO 3/2 ) m (R 2 SiO 3/2 ) n (CHR 1 X 0 -D-SiZO 2/2 ) o (R 2 SiZO 2/2 ) p (CHR 1 X 0 -D-SiZ 2 O 1/2 ) q (R 2 SiZ 2 O 1/2 ) r    (a-1)

wherein R 1 is a hydrogen atom or an alkyl group having 1 to 6 carbon atoms, X 0 is a halogen atom, a cyano group, or a group represented by OG (wherein G is a protecting group for a hydroxyl group), D is a single bond or a substituted or unsubstituted divalent organic group having 1 to 20 carbon atoms, R 2 is an alkyl group having 1 to 20 carbon atoms, or a substituted or unsubstituted phenyl group, Z is a hydroxyl group, an alkoxy group having 1 to 10 carbon atoms, or a halogen atom, m and n are independently a positive integer, and o, p, q, and r are independently 0 or a positive integer,
the component (B) being a 1,3,5-N-tris[(trialkoxysilyl)alkyl] isocyanurate represented by a formula (b-3), or an N,N′-bis[(trialkoxysilyl)alkyl]urea represented by a formula (b-4),

wherein R a are an alkoxy group having 1 to 6 carbon atoms, provided that R a are either identical or different, and t are independently an integer from 1 to 10, and
the component (C) being a silane coupling agent that has an acid anhydride structure.

2. The curable composition according to claim 1 , wherein the silane compound copolymer (I) used as the component (A) has a weight average molecular weight of 800 to 30,000.

3. The curable composition according to claim 1 , wherein the silane compound copolymer (I) used as the component (A) is a compound represented by the formula (a-1) wherein m:n=5:95 to 60:40.

4. The curable composition according to claim 1 , the curable composition comprising the component (A) and the component (C) in a mass ratio (component (A):component (C)) of 100:0.01 to 100:30.

5. A curable composition comprising a component (A′), a component (B), and a component (C), the curable composition comprising the component (A′) and the component (B) in a mass ratio (component (A′):component (B)) of 100:10 to 100:30,
the component (A′) being a silane compound copolymer (II) that is produced by condensing a silane compound mixture that comprises at least one silane compound (1) represented by a formula (1) and at least one silane compound (2) represented by a formula (2),
R 1 —CH(X 0 )-D-Si(OR 3 ) u (X 1 ) 3-u   (1)

wherein R 1 is a hydrogen atom or an alkyl group having 1 to 6 carbon atoms, X 0 is a halogen atom, a cyano group, or a group represented by OG (wherein G is a protecting group for a hydroxyl group), D is a single bond or a substituted or unsubstituted divalent organic group having 1 to 20 carbon atoms, R 3 is an alkyl group having 1 to 10 carbon atoms, X 1 is a halogen atom, and u is an integer from 0 to 3,
R 2 Si(OR 4 ) v (X 2 ) 3-v   (2)

wherein R 2 is an alkyl group having 1 to 20 carbon atoms, or a substituted or unsubstituted phenyl group, R 4 is an alkyl group having 1 to 10 carbon atoms, X 2 is a halogen atom, and v is an integer from 0 to 3,
the component (B) being a 1,3,5-N-tris[(trialkoxysilyl)alkyl] isocyanurate represented by a formula (b-3), or an N,N′-bis[(trialkoxysilyl)alkyl]urea represented by a formula (b-4),

wherein R a are an alkoxy group having 1 to 6 carbon atoms, provided that R a are either identical or different, and t are independently an integer from 1 to 10, and
the component (C) being a silane coupling agent that has an acid anhydride structure.

6. The curable composition according to claim 5 , wherein the silane compound copolymer (II) used as the component (A′) has a weight average molecular weight of 800 to 30,000.

7. The curable composition according to claim 5 , the curable composition comprising the component (A′) and the component (C) in a mass ratio (component (A′):component (C)) of 100:0.01 to 100:30.

8. The curable composition according to claim 1 , wherein the component (C) is a 3-(trialkoxysilyl)propylsuccinic anhydride.

9. The curable composition according to claim 1 , the curable composition being an optical device-securing composition.

10. A cured product obtained by curing the curable composition according to claim 1 .

11. The cured product according to claim 10 , the cured product being an optical device-securing material.

12. A method for using the curable composition according to claim 1 as an optical device-securing adhesive.

13. A method for using the curable composition according to claim 1 as an optical device sealing material.

14. A sealed optical device comprising an optical device and a cured product of the curable composition according to claim 1 , the optical device being sealed with the cured product.

15. A method for producing a sealed optical device comprising forming the curable composition according to claim 1 to have a desired shape so as to enclose an optical device to obtain a formed article that includes the optical device, and curing the curable composition by heating.

16. The curable composition according to claim 5 , wherein the component (C) is a 3-(trialkoxysilyl)propylsuccinic anhydride.

17. The curable composition according to claim 5 , the curable composition being an optical device-securing composition.

18. A cured product obtained by curing the curable composition according to claim 5 .

19. A method for using the curable composition according to claim 5 as an optical device-securing adhesive.

20. A method for using the curable composition according to claim 5 as an optical device sealing material.

21. A sealed optical device comprising an optical device and a cured product of the curable composition according to claim 5 , the optical device being sealed with the cured product.

22. A method for producing a sealed optical device comprising forming the curable composition according to claim 5 to have a desired shape so as to enclose an optical device to obtain a formed article that includes the optical device, and curing the curable composition by heating.

Assignees

• Lintec Corp

Inventors

• Matsui Masami
• Kashio Mikihiro

Classifications

• C08L83/08

  containing silicon bound to organic groups containing atoms other than carbon, hydrogen and oxygen · CPC title

• C08K5/544

  containing nitrogen · CPC title

• C08K5/5435

  containing oxygen in a ring · CPC title

• C08G77/26

  nitrogen-containing groups · CPC title

• C08G77/24

  halogen-containing groups · CPC title