Composition, film, cured film, optical sensor, and method for producing film

Patent metadata

Field	Value
Publication number	US-10678131-B2
Application number	US-201816123492-A
Country	US
Kind code	B2
Filing date	Sep 6, 2018
Priority date	Mar 14, 2016
Publication date	Jun 9, 2020
Grant date	Jun 9, 2020

Abstract

A composition includes at least one of particles having an average primary particle diameter of 50 to 150 nm or particles having an average major axis length of 50 to 150 nm, and a resin, in which the composition has an L* in an L*a*b* color space of CIE 1976 of 35 to 75 in a case of forming a film with a thickness of 3 μm using the composition. A film; a cured film; an optical sensor; and a method for producing a film each use the composition.

First claim

What is claimed is:

1. A composition comprising:
at least one of inorganic particles having an average primary particle diameter of 50 to 150 nm or inorganic particles having an average major axis length of 50 to 150 nm; and
a resin,
wherein a content of the inorganic particles is 30% to 60% by mass with respect to the total solid content of the composition and
the composition has an L* in an L*a*b* color space of CIE 1976 of 35 to 75 and an average transmittance in a wavelength range of 400 to 700 nm of 1% to 50% in a case of forming a film with a thickness of 3 μm using the composition.

2. The composition according to claim 1 ,
wherein the composition is a curable composition.

3. The composition according to claim 1 ,
wherein the inorganic particles include a white pigment.

4. The composition according to claim 1 ,
wherein the inorganic particles include titanium oxide.

5. The composition according to claim 1 ,
wherein the resin is an alkali-soluble resin.

6. The composition according to claim 1 , further comprising:
a radically polymerizable compound; and
a polymerization initiator.

7. The composition according to claim 1 , further comprising a coloring inhibitor.

8. The composition according to claim 1 , further comprising a chain transfer agent.

9. The composition according to claim 1 , further comprising at least one of a dispersant or a dispersion aid.

10. A film formed using the composition according to claim 1 .

11. The film according to claim 10 ,
wherein the film has a thickness of 10 μm or less.

12. A cured film formed by curing the film according to claim 10 .

13. An optical sensor comprising the cured film according to claim 12 .

14. A method for producing a film, comprising:
exposing the composition according to claim 1 through a mask with a pattern; and
developing the exposed composition to form a pattern.

15. The composition according to claim 1 ,
wherein the concentration of the solid content of the composition is 30% to 60% by mass.

16. The composition according to claim 1 ,
wherein the composition includes at least one of inorganic particles having an average primary particle diameter of 80 to 130 nm or inorganic particles having an average major axis length of 80 to 130 nm.

17. A film comprising:
at least one of inorganic particles having an average primary particle diameter of 50 to 150 nm or inorganic particles having an average major axis length of 50 to 150 nm; and
a resin,
wherein the film has an L* in an L*a*b* color space of CIE 1976 of 35 to 75 and an average transmittance in a wavelength range of 400 to 700 nm of 1% to 50%.

18. The film according to claim 17 ,
wherein the film includes at least one of inorganic particles having an average primary particle diameter of 80 to 130 nm or inorganic particles having an average major axis length of 80 to 130 nm.

Assignees

• Fujifilm Corp

Inventors

• Taguchi Yoshinori
• Takahashi Hidenori

Classifications

• C08F222/1045

  of aromatic tetraalcohols · CPC title

• C08F2/48

  by ultraviolet or visible light · CPC title

• G03F7/033

  the binders being polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. vinyl polymers · CPC title

• C09D7/40

  Additives · CPC title

• C09D7/66

  characterised by particle size · CPC title