Adhesive composition for high-power optical fiber

Patent metadata

Field	Value
Publication number	US-9765246-B2
Application number	US-201515120250-A
Country	US
Kind code	B2
Filing date	Feb 19, 2015
Priority date	Feb 20, 2014
Publication date	Sep 19, 2017
Grant date	Sep 19, 2017

Abstract

An object of the present invention is to provide an adhesive composition for a high-power optical fiber having a low pull-in amount. The adhesive composition for a high-power optical fiber of the present invention contains: a compound (A) having an aromatic ring and a reactive silicon-containing group; a glycidyl compound (B); and a compound (C) having a silsesquioxane cage structure.

First claim

The invention claimed is:

1. An adhesive composition for a high-power optical fiber comprising: a compound (A) having an aromatic ring and a reactive silicon-containing group; a glycidyl compound (B); and a compound (C) having a silsesquioxane cage structure,
wherein
a proportion (A/(A+B+C)) of a content of the compound (A) in a total content (A+B+C) of the content of the compound (A), a content of the glycidyl compound (B), and a content of the compound (C) is from 20 to 70 mass %;
a proportion (B/(A+B+C)) of the content of the glycidyl compound (B) in the total content (A+B+C) is from 20 to 70 mass %; and
a proportion (C/(A+B+C)) of the content of the compound (C) in the total content (A+B+C) is from 5 to 40 mass %.

2. The adhesive composition for a high-power optical fiber according to claim 1 , further comprising an imidazole compound (D).

3. The adhesive composition for a high-power optical fiber according to claim 1 , wherein the reactive silicon-containing group is a hydrolyzable silicon-containing group.

4. The adhesive composition for a high-power optical fiber according to claim 1 , wherein the compound (A) is obtained by reacting an epoxy compound (e) with a compound (f) having a reactive group that reacts with the epoxy group contained in the epoxy compound (e).

5. The adhesive composition for a high-power optical fiber according to claim 4 , wherein the epoxy compound (e) is an aromatic epoxy compound, and the compound (f) is an iminosilane compound.

6. The adhesive composition for a high-power optical fiber according to claim 4 , wherein the epoxy compound (e) is an epoxysilane compound, and the compound (f) is an aromatic amine compound.

7. The adhesive composition for a high-power optical fiber according to claim 4 , wherein the compound (f) has an amino group or an imino group, and the number of equivalent of active hydrogen in the amino group or the imino group is from 0.1 to 1.0 equivalent relative to the amount of epoxy group contained in the epoxy compound (e).

8. The adhesive composition for a high-power optical fiber according to claim 1 , wherein the compound (C) is obtained by subjecting at least one type of silane selected from the group consisting of epoxysilane, aminosilane, vinylsilane, methacrylsilane, acrylsilane, and mercaptosilane to condensation.

9. The adhesive composition for a high-power optical fiber according to claim 2 , wherein the reactive silicon-containing group is a hydrolyzable silicon-containing group.

10. The adhesive composition for a high-power optical fiber according to claim 2 , wherein the compound (A) is obtained by reacting an epoxy compound (e) with a compound (f) having a reactive group that reacts with the epoxy group contained in the epoxy compound (e).

11. The adhesive composition for a high-power optical fiber according to claim 3 , wherein the compound (A) is obtained by reacting an epoxy compound (e) with a compound (f) having a reactive group that reacts with the epoxy group contained in the epoxy compound (e).

12. The adhesive composition for a high-power optical fiber according to claim 9 , wherein the compound (A) is obtained by reacting an epoxy compound (e) with a compound (f) having a reactive group that reacts with the epoxy group contained in the epoxy compound (e).

13. The adhesive composition for a high-power optical fiber according to claim 5 , wherein
the compound (f) has an amino group or an imino group, and
the number of equivalent of active hydrogen in the amino group or the imino group is from 0.1 to 1.0 equivalent relative to the amount of epoxy group contained in the epoxy compound (e).

14. The adhesive composition for a high-power optical fiber according to claim 6 , wherein
the compound (f) has an amino group or an imino group, and
the number of equivalent of active hydrogen in the amino group or the imino group is from 0.1 to 1.0 equivalent relative to the amount of epoxy group contained in the epoxy compound (e).

15. The adhesive composition for a high-power optical fiber according to claim 2 , wherein the compound (C) is obtained by subjecting at least one type of silane selected from the group consisting of epoxysilane, aminosilane, vinylsilane, methacrylsilane, acrylsilane, and mercaptosilane to condensation.

16. The adhesive composition for a high-power optical fiber according to claim 3 , wherein the compound (C) is obtained by subjecting at least one type of silane selected from the group consisting of epoxysilane, aminosilane, vinylsilane, methacrylsilane, acrylsilane, and mercaptosilane to condensation.

17. The adhesive composition for a high-power optical fiber according to claim 4 , wherein the compound (C) is obtained by subjecting at least one type of silane selected from the group consisting of epoxysilane, aminosilane, vinylsilane, methacrylsilane, acrylsilane, and mercaptosilane to condensation.

18. The adhesive composition for a high-power optical fiber according to claim 5 , wherein the compound (C) is obtained by subjecting at least one type of silane selected from the group consisting of epoxysilane, aminosilane, vinylsilane, methacrylsilane, acrylsilane, and mercaptosilane to condensation.

19. The adhesive composition for a high-power optical fiber according to claim 6 , wherein the compound (C) is obtained by subjecting at least one type of silane selected from the group consisting of epoxysilane, aminosilane, vinylsilane, methacrylsilane, acrylsilane, and mercaptosilane to condensation.

Assignees

• Yokohama Rubber Co Ltd

Inventors

• Kageyama Hirokazu
• Kimura Kazushi
• Mitachi Seiko

Classifications

• C08L83/04

  Polysiloxanes · CPC title

• G02B6/3861

  Adhesive bonding (adhesives in general C09J) · CPC title

• C09J183/14

  in which at least two but not all the silicon atoms are connected by linkages other than oxygen atoms (C09J183/10 takes precedence) · CPC title

• C09J183/00

  Adhesives based on 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; Adhesives based on derivatives of such polymers · CPC title

• G02B6/36

  Mechanical coupling means (G02B6/255, G02B6/42 take precedence) · CPC title