Resin composition, optical filter, and method for manufacturing optical filter

Abstract

To provide a resin composition capable of forming a resin layer with superior adhesion to phosphoric acid-based or fluorophosphate-based glass.SOLUTION: The present invention provides a resin composition for directly forming a resin layer on phosphoric acid-based or fluorophosphate-based glass, the resin composition containing (A) a resin, (B) a metal alkoxide or a condensate thereof (where the metal is at least one selected from the group consisting of Ti, Zr, and Al), and / or a reaction product of the component (A) and the component (B).SELECTED DRAWING: None

Claims

1. A resin composition for directly forming a resin layer on a phosphoric acid-based or fluorophosphoric acid-based glass, comprising: A resin composition comprising: (A) a resin; and (B) a metal alkoxide or a condensate thereof (wherein the metal is at least one selected from the group consisting of Ti, Zr and Al), and / or a reaction product of the component (A) and the component (B).

2. 2. The resin composition according to claim 1, further comprising (C) at least one member selected from the group consisting of a silane coupling agent, a hydrolyzate thereof, and a hydrolysis condensate thereof.

3. 2. The resin composition according to claim 1, wherein the content of Ti atoms, Zr atoms or Al atoms is 0.01% by mass or more and 2.0% by mass or less based on 100% by mass of the solid content of the resin composition.

4. The resin composition according to claim 1, wherein the resin of component (A) has an ester bond.

5. 5. The resin composition according to claim 4, wherein at least a portion of the metal alkoxide or condensate thereof of the component (B) reacts with an ester bond contained in the resin of the component (A) and bonds to the resin.

6. 2. The resin composition according to claim 1, further comprising (D) at least one dye selected from the group consisting of a near-infrared absorbing dye, an ultraviolet absorbing dye, and a visible light absorbing dye.

7. a phosphoric acid-based or fluorophosphoric acid-based glass substrate; 7. An optical filter comprising: a resin layer formed directly on the substrate and cured from the resin composition according to claim 1.

8. The optical filter according to claim 7, further comprising a dielectric film.

9. An imaging device comprising the optical filter according to claim 7.

10. A step of blending (A) a resin and (B) a metal alkoxide or a condensate thereof (wherein the metal is at least one selected from the group consisting of Ti, Zr, and Al) to obtain a resin composition; A step of applying the resin composition onto a phosphoric acid-based or fluorophosphoric acid-based glass substrate to form a coating film of the resin composition; and heating the coating film to form a resin layer on the substrate by curing the resin composition. A method for producing an optical filter, characterized in that in the step of forming the resin layer, the coating film is heated in a state in which an alkoxide group bonded to a Ti atom, a Zr atom or an Al atom of the metal alkoxide or its condensate is present in the resin composition.

11. The method for producing an optical filter according to claim 10, wherein in the step of obtaining the resin composition, (C) at least one selected from the group consisting of a silane coupling agent, a hydrolyzate thereof, and a hydrolysis condensate thereof is further blended.

12. The method for producing an optical filter according to claim 10, wherein in the step of obtaining the resin composition, the component (A) and the component (B) are mixed and stirred for one hour or more.

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