PHORET™ | Binder for Electronic Material
Product Description
PHORET™ is a functional acrylic polymer that has been developed using the synthesis technology of Soken in order to meet demands for high transparency, functionality, and compatibility with other materials.
In addition to our existing products, we can also accommodate customized design, development, production, and industrialization of materials on a contract basis to meet specific customer requirements.
Features provided by PHORET™
- Flexibility
- Thermosetting
- Adhesion to substrates
- Firing properties
- UV curability
- Self crosslinking
- Heat resistance
- Chemical resistance
- Printability
- High refractive index
- Yellowing resistance
- Developability
Features
- High to low viscosity
- Transparent liquid with excellent compatibility and dispersibility
- Alkali-soluble, with adjustable acid value, hydroxyl value, and molecular weight
- Adjustable balance of heat resistance and compatibility
Principal molecular structure
Applications
- Binders for functional coatings
- Photolithography resists
- Primers for various substrates
Application case studies
PHORET™ is widely used in electronic and optical materials, including coating, resist, and paste applications. It is soluble in alkali, has excellent developability, and can be used as a photolithography resist binder with optimal combinations in terms of molecular weight and acid value. Its high transparency, substrate adhesion, high refractive index, and yellowing resistance make it suitable for electronic and advanced material applications as a functional coating binder.
Advantages of using PHORET™
- Homogeneous pigment dispersion
- Improved adhesion to substrates
- High heat yellowing resistance
Grade (product no.)
*Can be scrolled horizontally
| Product no. | Solvent type | Non-volatile content (%) | Viscosity (mPa-s 25°C) | Content of functional group | Functionality | Applications |
|---|---|---|---|---|---|---|
| ZAH-310 | PMA | 34 to 36 | 1300 to 2000 | AV=93 to 99 | Dispersibility, Alkali solubility | Color filters, Pigment dispersants |
| ZAH-106 | PMA | 34 to 36 | 50 to 150 | AV=61 to 67 | ||
| ZAH-110 | PMA | 34 to 36 | 100 to 400 | AV=93 to 99 | ||
| ZAH-115 | PMA | 34 to 36 | 1500 to 3000 | AV=140 to 150 | ||
| GS-80ES | EtAc | 30 | 2500 to 5000 | ー |
- Notes:1: Propylene glycol methyl acetate (PMA)
2: Functional group hydroxyl value and acid value units: mgKOH/g - Note: The above properties and values are for reference only, and are subject to change without notice.
Heat resistance evaluation
*Can be scrolled horizontally
| Resin type | Transmittance (%) | Heat yellowing resistance (%) | ||||
|---|---|---|---|---|---|---|
| Initial | After heat resistance | |||||
| 400nm | 350nm | 400nm | 350nm | 400nm | 350nm | |
| ZAH-110 | 97.7 | 95.1 | 94.1 | 83.9 | -3.8 | -11.8 |
| ZAH-115 | 97.8 | 96.7 | 93.8 | 83.6 | -4.2 | -13.5 |
| ZAH-310 | 97.8 | 96 | 93.9 | 83.6 | -4 | -13 |
- Transmittance (%): Transmittance of the coating film at 400 and 350 nm is measured with a spectrophotometer
Substrate: Glass plate
Coating conditions: Approx. 35 μm, dry; drying conditions: 120°C x 5 min - Heat yellowing resistance (%):(Transmittance after heat resistance - initial transmittance) / initial transmittance x 100
Heat resistance conditions: 250°C x 1 hour
- Note: The data listed are for reference only and are not standard values.
In addition, there is no guarantee that the listed uses will not infringe on any patents.