Intermediate film for laminated glass, and laminated glass

Patent metadata

Field	Value
Publication number	US-12202980-B2
Application number	US-202017779292-A
Country	US
Kind code	B2
Filing date	Dec 7, 2020
Priority date	Dec 19, 2019
Publication date	Jan 21, 2025
Grant date	Jan 21, 2025

Abstract

Provided is an interlayer film for laminated glass capable of enhancing the weatherability. The interlayer film for laminated glass according to the present invention contains an anthraquinone dye and a perinone dye.

First claim

The invention claimed is:

1. An interlayer film for laminated glass, containing an anthraquinone dye and a perinone dye,
a weight ratio of a content of the anthraquinone dye to a content of the perinone dye being 2 or more and 15 or less,
the anthraquinone dye containing an anthraquinone dye that is a blue coloring matter,
the perinone dye containing a perinone dye that is a red coloring matter, and
the interlayer film further containing a yellow coloring matter that is an azo pigment or a quinoline dye.

2. The interlayer film for laminated glass according to claim 1 , containing a light stabilizer.

3. The interlayer film for laminated glass according to claim 2 , wherein the light stabilizer is a light stabilizer in which a carbon atom is bonded to a nitrogen atom of a piperidine structure.

4. The interlayer film for laminated glass according to claim 1 , containing a thermoplastic resin.

5. The interlayer film for laminated glass according to claim 1 , containing a plasticizer.

6. A laminated glass comprising:
a first lamination glass member;
a second lamination glass member; and
the interlayer film for laminated glass according to claim 1 ,
the interlayer film for laminated glass being arranged between the first lamination glass member and the second lamination glass member.

7. The interlayer film for laminated glass according to claim 1 , wherein the anthraquinone dye contains an anthraquinone dye of Color Index: Solvent Blue 45.

8. The interlayer film for laminated glass according to claim 1 , containing a polyvinyl acetal resin.

Assignees

• Sekisui Chemical Co Ltd

Inventors

• Okajima Moyuru
• Kishida Reiko
• Tsunoda Ryuta

Classifications

• C09B67/0063

  of organic pigments with only macromolecular substances · CPC title

• C08J5/18

  Manufacture of films or sheets · CPC title

• B32B2307/4026

  within the layer by addition of a colorant, e.g. pigments, dyes · CPC title

• B32B2250/40

  Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA · CPC title

• B32B27/306

  comprising vinyl acetate or vinyl alcohol (co)polymers · CPC title