EDB (Ethyl 4-(dimethylamino)benzoate) Amine Synergist
CAS Number: 10287-53-3
EDB (Ethyl 4-dimethylaminobenzoate) is a tertiary amine co-initiator and synergist widely used with Type II photoinitiators (benzophenone, thioxanthone) in UV adhesive and coating formulations. It donates a hydrogen atom to excited photoinitiator triplet states, dramatically accelerating surface and bulk cure rate and reducing oxygen inhibition. EDB also improves the yellowing resistance compared to aliphatic amine synergists, making it preferred for clear and light-colored UV adhesive systems.
Technical Specifications
| color | ≤2 (Gardner) |
| purity | ≥98% |
| moisture | ≤0.1% |
| appearance | Colorless to pale yellow liquid or low-melting solid |
| meltingPoint | 13–16 °C |
Applications
- Synergist with benzophenone in UV adhesives
- Surface cure enhancer in UV coatings
- Co-initiator in clear UV-curable sealants
- Oxygen inhibition reducer in acrylate systems
- UV-curable printing ink formulations
Key Features
- Dramatically reduces oxygen inhibition at the surface
- Better yellowing resistance than aliphatic amines
- Effective synergist with Type II photoinitiators
- Liquid at near-ambient conditions for easy incorporation
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CAS Number
10287-53-3
Category
Adhesive / Sealant AdditivesAvailability
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