Polymetalloxane, method for producing same, composition thereof, cured film and method for producing same, and members and electronic components provided with same

Patent metadata

Field	Value
Publication number	US-11795064-B2
Application number	US-201615772881-A
Country	US
Kind code	B2
Filing date	Nov 17, 2016
Priority date	Nov 26, 2015
Publication date	Oct 24, 2023
Grant date	Oct 24, 2023

Abstract

Disclosed is a polymetalloxane including a constituent unit represented by the following general formula (1), which stably exists in a transparent and uniform state in a solution and can form a homogeneous cured film:

wherein R 1 is an organic group and at least one of R 1 is an (R 3 3 SiO—) group, R 3 is optionally selected from specific groups, R 2 is optionally selected from specific groups, when plural R 1 , R 2 , and R 3 exist, they may be the same or different, M represents a specific metal atom, m is an integer indicating a valence of a metal atom M, and a is an integer of 1 to (m−2).

First claim

The invention claimed is:

1. A polymetalloxane formed by polycondensation of a compound represented by general formula (2) or a hydrosylate thereof:

wherein
R 4 is selected from all methyl or all ethyl,
R 5 is selected from a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, when plural R 4 and R 5 exist, they may be the same or different,
M represents a metal atom selected from the group consisting of Ti, Zr and Sn,
m is an integer indicating a valence of a metal atom M, and
n is an integer of 1 to (m−1),
where the polymetalloxane consists of a constituent unit represented by the following general formula (1) as a repeating unit and having a weight average molecular weight of 10,000 or more:

wherein:
R 1 is a hydroxy group, an alkoxy group having 1 to 4 carbon atoms or an (R 3 3 SiO—) group selected from the group consisting of a trimethylsiloxy group and a triethylsiloxy group,
R 2 is selected from a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, or a group having a metalloxane bond, and

wherein:
when plural R 1 , R 2 , and R 3 exist, they may be the same or different,
M represents a metal atom selected from the group consisting of Ti, Zr and Sn,
m is an integer indicating a valence of the metal atom M,
a is an integer of 1 to (m−2), and
content of the (R 3 3 SiO—) group, represented by the ratio of the number of mols of Si atoms to the number of mols of M atoms of the polymetalloxane, is 10 mol % or more and 100 mol % or less.

2. The polymetalloxane according to claim 1 , wherein at least one of R 1 in the polymetalloxane is a hydroxy group.

3. A composition comprising the polymetalloxane according to claim 1 and a solvent selected from the group consisting of alcohols, esters, ethers and ketones.

4. A composition comprising the polymetalloxane according to claim 1 and inorganic particles.

5. A cured film of the polymetalloxane according to claim 1 .

6. A cured film of the composition according to claim 3 .

7. A method for producing a cured film, which comprises the step of heating the polymetalloxane according to claim 1 .

8. A member comprising the cured film according to claim 5 .

9. The member according to claim 8 , wherein the member is a lens.

10. An electronic component comprising the member according to claim 8 .

11. The electronic component according to claim 10 , which is a touch sensor, an image sensor, an organic EL element or an organic EL lighting.

12. A building material comprising the polymetalloxane according to claim 1 .

13. A column packed with the polymetalloxane according to claim 1 .

14. A radionuclide generator comprising the column according to claim 13 .

15. A method for producing a cured film, which comprises a step of heating the composition according to claim 3 .

16. The polymetalloxane according to claim 1 , wherein the polymetalloxane has a weight average molecular weight of 46,000 or more.

17. The polymetalloxane according to claim 16 , wherein when the polymetalloxane is heated at a temperature of 300° C. for 5 minutes to obtain a cured film and a refractive index of the cured film at a wavelength of 550 nm is measured, the refractive index is 1.87 or more and 2.10 or less.

Assignees

• Toray Industries

Inventors

• Kamogawa Masao
• Suwa Mitsuhito
• Mitsui Hiroko
• Nakamichi Miki

Classifications

• C01G25/006 Primary

  Compounds containing zirconium, with or without oxygen or hydrogen, and containing two or more other elements · CPC title

• H05B33/22 Primary

  characterised by the chemical or physical composition or the arrangement of auxiliary dielectric or reflective layers · CPC title

• H10P76/2041

  Photolithographic processes · CPC title

• B32B9/00

  Layered products comprising a {layer of a} particular substance not covered by groups B32B11/00 - B32B29/00 · CPC title

• C07F7/0836

  Compounds with one or more Si-OH or Si-O-metal linkage · CPC title