Kowa America Corporation

MicroSpheres

What are MicroSpheres?
Particle size-controlled Methyl methacrylate, styrene, copolymer and phenolic resin.

PMMA microspheres
Acrylic Microspheres

This product series of fine PMMA spherical particles are developed using exclusive polymerization techniques to create world-class acrylic microspheres controlled for particle-size ranges and distributions, and degrees of cross-linkage.

Each series has various grades depending on the average particle size; from the smallest MP-1451 with just 150 nanometer average particle size up to MP-1000 with 400 nm. If you need a specific particle size, please contact us for more information.

Applications examples include creating minimal-residue micropores for electrochemical applications, improve fluidity and viscosity as an additive in inks and toners, embed on a surface for light-diffusion, etc.

PROPERTIES
Series Photo Degree of
crosslinking Particle size
distribution Average particle
size(μm)
MX MX Standard to High Narrow 0.8~30
MZ MZ Ultra high Middle 5~30
MR MR Standard to High Wide 1~10
KMR KMR Ultra high Wide 3
MP MP None Narrow 0.15~0.4

FUNCTION
Anti-glare
Fluidity Adjustment
Light Diffusion
Matting
Nanotechnology
Soft Feel

APPLICATION
Additive
Architectural Coatings
Automotive Coatings
Coatings for Plastics
Industrial Coatings
Metal, Glass, Plastic Coatings
Paint & Coatings-Waterborne
Paint & Coatings-Solventborne
Plastics & Other Flexible Substrates Coatings
Printing Ink
Protective Coatings

PMMA
Acrylic microspheres – Personal Care

INCI: Polymethyl Methacrylate

For added light diffusion properties and fluidity of your formulations.
Chemisnow MP series are of narrow granulometric distribution, Chemisnow MR series show wider dispersion.

PROPERTIES
Item – Particle size
Chemisnow MP-2200 – 0.3~0.5 μm
Chemisnow MR-5C – 5.5~7.5 μm

IDENTIFIERS
CAS# : 9011-14-7
Polymethyl Methacrylate

FUNCTION
Fluidity Adjustment
Light Diffusion

APPLICATION
Foundation
Makeup

Chemisnow MZ Series
cross-linked acrylic middle-dispersing particles

Chemisnow is the brand name for a range of functional spherical fine particles developed through its unique polymerization technology. With the use of these properties, acrylic fine particles can be used for light diffusing agent, matting agent, anti-blocking agent for films, finish appearance enhancement agent, fluidity adjusting agent, and other applications.

PROPERTIES
Product Name – Average Particle Size (µm)
MZ-10HN – 10
MZ-20HN – 20
MZ-30H – 30

FUNCTION
Abrasion Resistance
Additive
Anti-blocking
Anti-glare
Light Diffusion
Matting
Soft Feel

APPLICATION
Additive
Architectural Coatings
Automotive Coatings
Coatings for Plastics
Industrial Coatings
Metal, Glass, Plastic Coatings
Paint & Coatings-Waterborne
Paint & Coatings-Solventborne
Plastics & Other Flexible Substrates Coatings
Protective Coatings

Chemisnow MX Series
cross-linked acrylic mono-dispersing particles

Chemisnow is the brand name for a range of functional spherical fine particles developed through its unique polymerization technology. With the use of these properties, acrylic fine particles can be used for light diffusing agent, matting agent, anti-blocking agent for films, finish appearance enhancement agent, fluidity adjusting agent, and other applications.

PROPERTIES
Product Name – Average Particle Size (µm)
MX-80H3wT – 0.8
MX-150 – 1.5
MX-300 – 3.0
MX-500 – 5.0

FUNCTION
Abrasion Resistance
Anti-blocking
Anti-glare
Light Diffusion
Matting
Soft Feel

APPLICATION
Additive
Architectural Coatings
Automotive Coatings
Coatings for Plastics
Industrial Coatings
Paint & Coatings-Waterborne
Paint & Coatings-Solventborne
Personal Care

Chemisnow MR Series
cross-linked acrylic wide-dispersing particles

Chemisnow is the brand name for a range of functional spherical fine particles developed through its unique polymerization technology. With the use of these properties, acrylic fine particles can be used for light diffusing agent, matting agent, anti-blocking agent for films, finish appearance enhancement agent, fluidity adjusting agent, and other applications.

PROPERTIES
Product Name – Average Particle Size (µm)
MR-1HG – 1.0
MR-2G – 1.0
MR-5C – 6.0
MR-7GC – 6.0

FUNCTION
Abrasion Resistance
Additive
Anti-blocking
Anti-glare
Light Diffusion
Matting
Scratch Resistance
Soft Feel

APPLICATION
Additives for personal care products
Architectural Coatings
Automotive Coatings
Industrial Coatings
Metal, Glass, Plastic Coatings
Paint & Coatings-Waterborne
Paint & Coatings-Solventborne
Plastics & Other Flexible Substrates Coatings
Protective Coatings

BellPearl® Series
Phenolic resin microspheres

BellPearl® Series are non-toxic, high performance phenolic resins with perfectly spherical shape. They are part of KOWA’s Microsphere series which is characterized with high molecular weight and low cross-linking density.

PROPERTIES
S type: A hot melt, self curing type. Soluble in solvents. Used as binder resins for moldings. Also used as thermo-setting resin.
R type: Does not melt with heat. Cured type. Insoluble in solvents. Used as reactive organic filler to, for instance, improve thermal resistance of matrix.
C type: Amorphous carbon particulates obtained by carbonizing R type Bellpearl. Used as filler to improve electric conductivity and frictional properties of matrix.

FUNCTION
Additive
Anti-blocking
Chemical Resistance
Impact Strength
Low Odor
Resins
Water Resistance
Weatherability

APPLICATION
Adhesives
Automotive Coatings
Industrial Coatings

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