Composition, coating film, high molecular film, optical filter lens containing metal nano strip

A polymer film, metal nanotechnology, applied in the field of optical filters, can solve the problem of not using metal nanostrips

Inactive Publication Date: 2003-09-10
MITSUBISHI MATERIALS CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the former resin composition having a near-infrared light blocking function is a monomer having an unsaturated double bond, a polymer containing a phosphorus atom, a copper atom, etc. , so that it has a shielding effect on electromagnetic waves and near-infrared light, without using metal nanobars

Method used

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Examples

Experimental program
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Embodiment

[0054] Hereinafter, the present invention will be specifically shown based on Examples and Comparative Examples. The following examples mainly show the light absorption function in the wavelength region of 400nm to 1400nm, but by changing the type, length, composition and other conditions of the metal nanorods, even for the wavelength region up to 2000nm, it is possible to have the same Light absorption function.

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Abstract

A coating layer, an optical filter formed by the coating layer, a polymer film, and an optical filter formed by the polymer film have a selective absorbing function and electromagnetic wave shielding function which are superior with respect to visible rays and near infrared rays. The coating layer and optical filter formed thereby are formed by a coating composition which contains rod-shaped metal particles (metal nanorods) whose main axis is less than 400 nm and whose aspect ratio is larger than 1, and which contains, in accordance with need, a dye, a pigment having a selective absorbing function in a wavelength range of 780 nm or less, and metal nanowires whose main axis is 400 nm or more and whose minor axis is 50 nm or less. The polymer film is formed by the aforementioned coating composition which is dispersed in a binder (resin).

Description

field of invention [0001] The present invention relates to a composition containing metal nanorods (nano rods), a coating film, a polymer film, and an optical lens formed of the polymer film, which have a selective absorption function and an electromagnetic wave shielding function for specific wavelengths belonging to visible light and near-infrared light. Filters (filter plates) and their uses. Background technique [0002] When light is irradiated on metal particles, a resonant absorption phenomenon called plasmon absorption (Plasmon Absorption) occurs. This absorption phenomenon differs in the absorption wavelength depending on the type and shape of the metal. For example, it is known that colloidal gold in which spherical gold particles are dispersed in water has an absorption region around 530 nm, but if the shape of the particles is made into strips with a short axis of 10 nm, the absorption near 530 nm due to the short axis of the strips is eliminated. In addition, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K3/08C08K13/02C09D5/24G02B5/20
CPCC09D5/32C09D201/00G02B1/10G02B5/208G02B5/22
Inventor 平田宽树高田佳明李成圭沟口大刚石原真兴室内圣人
Owner MITSUBISHI MATERIALS CORP
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