CAS No. 70321-86-7

Sunvin 23 is a high molecular weight UV absorber of the hydroxypheny benzotriazole class, showing outstanding light stability to a variety of polymers during its use.

Sunvin 23 features low volatility, exceptional light absorbing characteristic and good compatibility in various substrates.

Sunvin 23 is suitable for high surface area products, like film, etc.

Advantage:
1. Readily soluble in a wide range of organic solvents.
2. Excellent compatibility with variety of the polymers.
3. Low volatility during high processing temperature.
4. Good extraction resistance.
5. Low vapor pressure, very little or no loss during processing.

Applications:
1. Polyvinyl chloride: 0.2-0.5 wt% for rigid PVC based on solids.
2. Polyurethane: 0.3-1.0 wt% for PU based on solids.
3. Polyacrylate: 0.15-0.3 wt% for PS based on solids.
4. Polycarbonate: 0.15-0.3 wt% for PP based on solids.
5. Polyester: 0.2-0.4 wt% for PET based on solids.