HS-944 UV-944 CAS 70624-18-9

Structural formula:

Product Description:

Characteristics and uses:

UV-944, also known as light stabilizer HS-944, is a white to light yellow granular or powdery chemical substance with excellent compatibility, extraction resistance and low volatility. Its melting point is between 100-135°C and its molecular weight is between 2000-3100. It is a high relative molecular weight stabilizer. The molecular structure of UV-944 mainly contains a large number of methine groups, so it shows stability during thermal oxygen treatment.

Performance features:

1. Excellent compatibility and extraction resistance.

2. Stable thermal oxygen treatment performance, especially suitable for thin products.

3. It can improve the thermal and oxidative aging resistance of materials.

4.FDA approved for food contact applications.

Application areas:

UV-944 is mainly used in plastic products as a polymeric high molecular weight hindered amine light stabilizer. It is widely used in the following fields:

1. Plastic products such as low-density polyethylene film, polypropylene fiber, polypropylene tape, EVA film, ABS, polystyrene and food packaging.

2. The application effect is particularly significant in polyolefin plastics (such as PP, PE) and olefin copolymers (such as EVA and mixtures of propylene and rubber, etc.).

3. Can be used in fields such as polyphenylene ether compounds, polyoxymethylene, polyamide, polyurethane, soft and hard PVC and PVC blends.

It also has good effects on styrene, rubber and adhesives.

Excellent performance:

The combination of UV-944 and UV absorbers has a coordinated effect, can provide long-term thermal stability, and has an antioxidant effect on polymers. Its special structure makes it suitable for systems requiring low volatility and low migration, especially for applications in films and fiber products.

Packaging specifications:

It is packed in cardboard barrels lined with plastic bags, and the net weight is 25kg, which can also be customized according to customer requirements.

Store in a cool, dry and ventilated place, away from direct sunlight. In a dry area below 25°C, the shelf life is two years.