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Near Infrared Cut Particles

Overview

A resin particle with near-infrared light reflection properties. The near-infrared light reflection helps prevent photoaging, and the particles also are expected to improve texture. Suitable in various cosmetic formulations such as sun screen, etc.

Features

(1) Excellent light reflection properties from ultraviolet rays to near-infrared rays.
(2) The spherical particle shape contributes to excellent spreadability.

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Characteristic Comparison

Average Particle Size (µm)

Oil Absorption (ml/100g)

Shape

Near Infrared Cut Particles

150

Spherical

MBP-8

140

Porous Spherical

Light Reflective Property

Measured the light reflection properties of coatings including the Near Infrared Cut Particles with a spectrophotometer. Light reflection properties were confirmed in the range of ultraviolet to near-infrared wave lengths.

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Particle Size Control(Micron, Submicron)
Particle Shape Configuration(Hollow structure, Porus structure, etc.)
Composition Variation(PET, Biodegraable, Biomasuu)
Particle Characteristic Control(Refractive index, Softness)
Stability Improvement(Solvent resitance, UV resistance)
Functionality Improvement(Thermal Conductivity, Functional Group Addition)
Other Technologies
For Cosmetics

Soft Particle Series

Our wide range of products with different compositions offers particles with various softness. The particles increase scratch resistance and adds texture to the coating surface.

Cosmetic ingredients

Grades with residual monomers removed by advance purification processes are available for cosmetic applications. The spherical shape of the “TECHPOLYMER” can improve spreadability of foundations, create a soft-focus effect, and change the texture. Porous particles that can be used as adsorbents, and elastic particles that adds soft feel are also available.

Particle Size Control

“TECHPOLYMER” is available in the size from submicron, micron, and up to millimeter* sizes. The wide product range offers the most suitable size for your application.
* The millimeter sizes are available as a separate product called the “DUOMASTER”.

Particle Shape Configuration

We have successfully established shape configuration technology which enables the control of interior and exterior structure of the particles to develop non-spherical particles, hollow, and porous particles. Non-spherical particles are expected to obtain special optical properties from the special shapes in applications. The porous and hollow particles improve properties such as light diffusion, low permittivity, absorption. These particles are lower specific density according to the air voids within the structure.

Hollow Structure

Porous Structure

Highly Porous Particles

Biconvex Lenticular

Hemispherical

Monodispersed Type

Other Non-Spherical

Composition Variation

Sekisui Kasei has developed various new “TECHPOLYMER” grades that offer new functions and features. We can also develop custom grades for Customer’s special needs. Please contact us to discuss your applications.

Particle Characteristic Control

“TECHPOLYMER” offers a wide range of grades with the properties controlled to suit various applications. For display applications (liquid crystal), many grades are offered by adjusting the refractive index of the particles in order to obtain the desired light diffusion effect. For paints and coatings, various grades are being used in which the hardness of the particles has been adjusted to improve the texture of the coating.

Stability Improvement

“TECHPOLYMER” grades to withstand harsher conditions with higher resistance are available.
Contributes to higher productivity and quality stability of the final product enabling a wider choice of material to use.

Functionality Improvement

Developing high functionality particles by compositing “TECHPOLYMER” with other functional materials.
Other than the functionality of the material, the following are expected from composited particles.

Improvement in handling
Improvement of dispersibility in the matrix
Reduction in the amount of additives

In addition, particles with the characteristics of both the “TECHPOLYMER” and the functional material can be created such as the following:

Anti-blocking property (“TECHPOLYMER”) and conductivity (conductive material)
Light diffusion (“TECHPOLYMER”) and wavelength control (wavelength control material)
Impact resistance (“TECHPOLYMER”) and conductivity (conductive material)

Other Technologies

Capable of customizing our products with various technologies to offer our customers more solutions for their product development.
The following are few examples of our technologies.
Other customizations maybe available, please do not hesitate to contact us.

For Cosmetics

For cosmetic applications, we offer grades that have been highly purified to remove residual monomers. Capable of customizing our products with various technologies to meet your needs. Please contact us.

TECHPOLYMER Sample Request