IP Library Granted Patent US 11,111,346
Granted Patent B2
US 11,111,346 · App. 16/088,925 · Granted Sep 7, 2021

Metal-coated non-spherical resin particles and method for producing same, aligned film of metal-coated non-spherical resin particles and method for producing same, particles, and method for producing particle-aligned film

Inventors: Ryosuke Harada (Shiga, JP); Eiji Tokunaga (Tokyo, JP); Sou Aizawa (Tokyo, JP); Keisuke Seto (Tokyo, JP)
Assignee: SEKISUI KASEI CO., LTD.
C08J7/04C08J3/11C08J3/128C08J5/18C08J7/044C08J2333/12C08J2333/14C08J2367/00
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Quick Facts
Patent No.
US 11,111,346
App. No.
16/088,925
Granted
Sep 7, 2021
Kind
B2
Abstract

The present invention provides non-spherical metal-coated irregularly-shaped resin particles that can improve characteristics, such as light diffusion characteristics and reflection characteristics, when used for optical applications, compared with spherical metal-coated resin particles. Specifically, the present invention provides metal-coated irregularly-shaped resin particles in which part of the surface of irregularly-shaped resin particles is coated with metal.

Claims (23)

1. Metal-coated non-spherical resin particles, in which 20% or more and less than 80% of the surface of non-spherical resin particles is coated with metal,

wherein the sphere-equivalent volume average particle diameter of the non-spherical resin particles is 0.1 to 300 μm

and wherein the non-spherical resin particles have an aspect ratio of 1.2 or more.

2. The metal-coated non-spherical resin particles according to claim 1 , wherein the non-spherical resin particles have a circular outer shape when viewed from a direction in which a project area is the largest, and the non-spherical resin particles have a non-circular outer shape when viewed from a direction in which a project area is the smallest.

3. The metal-coated non-spherical resin particles according to claim 1 , wherein the non-spherical resin particles have (1) multiple flat portions, (2) a flat portion and a curved portion, or (3) a curved portion.

4. The metal-coated non-spherical resin particles according to claim 1 , wherein the non-spherical resin particles have a surface coated with metal and a surface that is not coated with metal.

5. The metal-coated non-spherical resin particles according to claim 1 , wherein the non-spherical resin particles have a hemispherical shape with a hemispherical portion and a flat portion.

6. The metal-coated non-spherical resin particles according to claim 5 , wherein at least part of the surface of the hemispherical portion is coated with metal.

7. The metal-coated non-spherical resin particles according to claim 5 , wherein at least part of the surface of the flat portion is coated with metal.

8. The metal-coated non-spherical resin particles according to claim 1 , wherein the non-spherical resin particles have a biconvex lens shape with a curved portion, or a flat shape.

9. The metal-coated non-spherical resin particles according to claim 8 , wherein only one side convex lens portion of the biconvex lens shape is coated, or only one side portion of the flat shape is coated.

10. Metal-coated non-spherical resin particles, in which 1% or more and less than 100% of the surface of non-spherical resin particles is coated with metal,

wherein the sphere-equivalent volume average particle diameter of the non-spherical resin particles is 0.1 to 300 μm, and

wherein the metal-coated non-spherical resin particles have phototaxis.

11. The metal-coated non-spherical resin particles according to claim 10 , wherein the non-spherical resin particles have an aspect ratio of 1.2 or more.

12. The metal-coated non-spherical resin particles according to claim 10 , wherein the non-spherical resin particles have a circular outer shape when viewed from a direction in which a project area is the largest, and the non-spherical resin particles have a non-circular outer shape when viewed from a direction in which a project area is the smallest.

13. The metal-coated non-spherical resin particles according to claim 10 , wherein the non-spherical resin particles have (1) multiple flat portions, (2) a flat portion and a curved portion, or (3) a curved portion.

14. The metal-coated non-spherical resin particles according to claim 10 , wherein the non-spherical resin particles have a surface coated with metal and a surface that is not coated with metal.

15. The metal-coated non-spherical resin particles according to claim 10 , wherein the non-spherical resin particles have a hemispherical shape with a hemispherical portion and a flat portion.

16. The metal-coated non-spherical resin particles according to claim 15 , wherein at least part of the surface of the hemispherical portion is coated with metal.

17. The metal-coated non-spherical resin particles according to claim 15 , wherein at least part of the surface of the flat portion is coated with metal.

18. The metal-coated non-spherical resin particles according to claim 10 , wherein the non-spherical resin particles have a biconvex lens shape with a curved portion, or a flat shape.

19. The metal-coated non-spherical resin particles according to claim 18 , wherein only one side convex lens portion of the biconvex lens shape is coated, or only one side portion of the flat shape is coated.

Assignments (2)
CHANGE OF NAME Recorded Feb 9, 2021
From: SEKISUI PLASTICS CO., LTD.
To: SEKISUI KASEI CO., LTD.
Reel/Frame 055265/0317 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 27, 2018
From: HARADA, RYOSUKE; TOKUNAGA, EIJI; AIZAWA, SOU; SETO, KEISUKE
To: SEKISUI PLASTICS CO., LTD.
Reel/Frame 046995/0007 →
Priority Claims (1)
JP JP2016-071706 · Mar 31, 2016 · national
Continuity (1)
Related Publication 20200325283A1 · Oct 15, 2020