ESLEAM® AD Series – Comb‑Type Polymer Dispersants for Fine Inorganic Powders
About the ESLEAM® AD Series
The ESLEAM® AD Series is a lineup of comb‑type functional polymer dispersants designed for the stable dispersion of fine inorganic powders used in electronics and ceramic applications.
These polymers are engineered with two optimized structural units: affinity units that strongly adsorb onto inorganic particle surfaces, and solubility‑control units that enhance compatibility with a wide range of solvents while providing steric repulsion.
This dual‑unit architecture delivers excellent dispersing performance, particularly for fine inorganic particles smaller than 1 µm, while contributing to viscosity reduction and long‑term dispersion stability.
These polymers are engineered with two optimized structural units: affinity units that strongly adsorb onto inorganic particle surfaces, and solubility‑control units that enhance compatibility with a wide range of solvents while providing steric repulsion.
This dual‑unit architecture delivers excellent dispersing performance, particularly for fine inorganic particles smaller than 1 µm, while contributing to viscosity reduction and long‑term dispersion stability.
Structure
ESLEAM® AD Series consists of comb‑type functional polymers designed with adsorption‑oriented affinity groups and solubility‑control segments.
This molecular structure enables effective surface interaction with fine inorganic powders and maintains stable dispersion behavior across various solvent systems
Features
- Excellent dispersibility for fine inorganic powders, preventing aggregation
- Reduces system viscosity and improves dispersion stability
- Dual‑unit polymer design combining strong surface affinity and steric repulsion
- 100 % active materials, free from impurities such as alkali metals
- Outstanding solubility across a wide range of organic solvents and water (depending on grade)
- Superior thermal decomposition performance, with complete decomposition at approximately 400 °C under nitrogen atmosphere
Applicable Pigments
| Pigment Type | Particle Size | Solvent Compatibility |
|---|---|---|
| Metals, carbon, carbides | < 1 µm | Water / Organic solvents |
Product Specifications & Solubility Table
| Product Name | Viscosity (mm²/s, 25°C) | Solid Content (%) | Water | Ethanol | Butyl Carbitol | Turpineol | PGMEA | Toluene |
|---|---|---|---|---|---|---|---|---|
| AD‑3172M | 600 | 100 | Soluble | Soluble | Soluble | Soluble | Soluble | Soluble |
| AD‑374M | 500 | 100 | Slightly soluble | Soluble | Soluble | Soluble | Soluble | Soluble |
| AD‑508E | 1,700 | 100 | Insoluble | Soluble | Soluble | Soluble | Soluble | Soluble |
| AD‑3284M | 900 | 100 | Slightly soluble | Soluble | Soluble | Soluble | Soluble | Soluble |
| AD‑3285E (Under development) | 1,500 | 100 | Insoluble | Soluble | Soluble | Soluble | Soluble | Soluble |
| AD‑370 *(Under development) | 60 | 100 | Soluble | Soluble | Soluble | Soluble | Soluble | Soluble |
Notes
Solubility definitions:
- Soluble = fully soluble
- Slightly soluble = slight haze / partially soluble
- Insoluble = not soluble
Testing conditions:
- All solubility evaluations were conducted using 5 wt% solutions at 25°C.
Applications
- Dispersants for fine inorganic powders
- Electronic materials
- Ceramic materials
- Advanced dispersion systems for metals, carbon, and carbide powders
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