Colorant-containing solid material and method for manufacturing colorant-containing solid material

Patent metadata

Field	Value
Publication number	US-11292918-B2
Application number	US-201816641058-A
Country	US
Kind code	B2
Filing date	Jul 20, 2018
Priority date	Aug 25, 2017
Publication date	Apr 5, 2022
Grant date	Apr 5, 2022

Abstract

A colorant-containing solid material (1) of the present invention includes a colorant (10) and a matrix (20). The matrix (20) is formed of a silica and a polysilsesquioxane and covers the colorant (10). An absorption intensity derived from a hydrocarbon group that is not directly bonded to a silicon atom, an absorption intensity derived from a bond between a silicon atom and a non-reactive functional group, and an absorption intensity derived from a bond between a silicon atom and a hydroxy group, determined by an infrared spectroscopic analysis based on a KBr pellet method using a Fourier transform infrared spectrophotometer, are denoted as Ia, Ib and Ic, respectively. The colorant-containing solid material (1) satisfies at least one of conditions Ib/Ia≥1.1 and Ib/Ic≥0.6.

First claim

The invention claimed is:

1. A colorant-containing solid material comprising:
a colorant that is not a pigment; and
a matrix that is formed of a silica and a polysilsesquioxane and covers the colorant, wherein,
only polymer having a network composed of Si—O—Si is present as a polymer in the matrix and inside the network of Si—O—Si, and
when an absorption intensity derived from a hydrocarbon group that is not directly bonded to a silicon atom, an absorption intensity derived from a bond between a silicon atom and a non-reactive functional group, and an absorption intensity derived from a bond between a silicon atom and a hydroxy group, determined by an infrared spectroscopic analysis based on a KBr pellet method using a Fourier transform infrared spectrophotometer, are denoted as Ia, Ib, and Ic, respectively, at least one of conditions Ib/Ia≥1.1 and Ib/Ic≥0.6 is satisfied.

2. The colorant-containing solid material according to claim 1 , wherein the conditions Ib/Ia≥1.1 and Ib/Ic≥0.6 are further satisfied.

3. The colorant-containing solid material according to claim 1 , wherein at least one of conditions Ib/Ia≥1.9 and Ib/Ic≥1.2 is further satisfied.

4. The colorant-containing solid material according to claim 1 , wherein a ratio of a mass of the polysilsesquioxane to a mass of the silica in the matrix is 1/9 to 9.

5. The colorant-containing solid material according to claim 1 , wherein
the silica is formed by hydrolysis and dehydration condensation of a tetrafunctional alkoxysilane, and
the polysilsesquioxane is formed by hydrolysis and dehydration condensation of a trifunctional alkoxysilane.

6. The colorant-containing solid material according to claim 1 , wherein the polysilsesquioxane is a polysilsesquioxane in which a hydrocarbon group having 16 or less carbon atoms is bonded to a silicon atom as the non-reactive functional group.

7. The colorant-containing solid material according to claim 1 , wherein the colorant is a dye.

Assignees

• Nippon Sheet Glass Co Ltd

Inventors

• Nakamura Koichiro
• Doshita Kazuhiro
• Horiguchi Haruko

Classifications

• C09C3/063

  Coating · CPC title

• C01P2002/82

  by IR- or Raman-data · CPC title

• C09C3/12 Primary

  Treatment with organosilicon compounds {(C09C3/006 takes precedence)} · CPC title

• C09C1/3063

  Treatment with low-molecular organic compounds · CPC title

• C09C1/30

  Silicic acid · CPC title