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The Hanson Group UV-944

The Hanson Group UV-944 is a low-dust, polymeric hindered amine light stabilizer (HALS) who provides superb light stability to many polymers and, in addition, gives long-term heat stability to polymers by radical trapping mechanism similar to that of hinder phenol. HXA UV-944’s effectiveness combined with its low volatility and low extractability makes itself the most widely used HALS commercially available.

Functions: Light Stabilizer, Stabilizer

Chemical Family: Hindered Amine Light Stabilizer (HALS)

Compatible Polymers & Resins: Acrylonitrile Butadiene Styrene (ABS), High-Density Polyethylene (HDPE), Linear Low Density Polyethylene (LLDPE) , Low-Density Polyethylene (LDPE), Polyethylenes (PE), Polyvinyl Chloride (PVC)

End Uses: Flexible Packaging, Rigid Films, Rigid Packaging

Technical Data Sheet

Enhanced TDS

Knowde-enriched technical product data sheet

Identification & Functionality

Chemical Family
Hindered Amine Light Stabilizer (HALS)
Plastics & Elastomers Functions
Light Stabilizer,
Stabilizer
Technologies
Elastomers,
Plastics
Product Families
Elastomers — Elastomer Additives
Antioxidants & Stabilizers
Plastics — Polymer Additives
Antioxidants & Stabilizers

Applications & Uses

Markets
Adhesives & Sealants,
Food & Nutrition,
Printing & Packaging
Applications
Printing & Packaging — Packaging
Food & Beverage Packaging,
Other Packaging Materials
Adhesives & Sealants — Packaging & Paper
Tape & Label Adhesives
Food & Nutrition — Processing & Packaging
Other Processing & Packaging Applications
Printing & Packaging — Tapes, Labels & Adhesives
Flexible Packaging Adhesives,
Other Tapes, Labels & Adhesives,
Tapes & Labels
Compatible Polymers & Resins
Acrylonitrile Butadiene Styrene (ABS),
High-Density Polyethylene (HDPE),
Linear Low Density Polyethylene (LLDPE) ,
Low-Density Polyethylene (LDPE),
Polyethylenes (PE),
Polyvinyl Chloride (PVC)
Plastics & Elastomers End Uses
Flexible Packaging,
Rigid Films,
Rigid Packaging
Applications

HXA UV-944 is suitable for those applications which demand particularly high stability for such polymers as PP, HDPE, LDPE, LLDPE, ABS and PVC. It is FDA-cleared for use in food packaging applications including PP and PE with maximum concentration of 0.3%.
In contrast to UV absorbers, HXA UV-944 effectiveness is independent of the polymer’s thickness. For this reason, HXA UV-944 is particularly effective in articles with high specific surface such as coating, fiber, films and tapes.
A percentage of 0.2% - 0.5% of HXA UV-944 is recommended for the purpose of light protection. If desired, it can be incorporated in monomer before polymerization, often with improvement of resin quality. Light stability of polymer can be further enhanced by use of UV absorbers or certain antioxidants.

Properties

Physical Form
Granules,
Powder,
Solid
Odor
Faint
Appearance
White to off-white powder
Color No.
70624-18-9
Typical Properties
ValueUnitsTest Method / Conditions
Molecular Weight2,000 – 3,300--
Softening range100 - 135°C-
Specific Gravity at 20°C1.15--
Vapor pressure at 20°Cmax. 0.01Pa-
Acetone Solubility (g in 100 ml solvent)min. 50--
Dichloromethane Solubility (g in 100 ml solvent)min. 60--
Hexane Solubility (g in 100 ml solvent)40--
Methanol Solubility (g in 100 ml solvent)3--
Styrene (g in 100 ml solvent)min. 50--
Acetic acid ethylester (g in 100 ml solvent)min. 50--
Softening point105 - 135°C-
Volatilesmax. 1.0%-
Ash Contentmax. 0.1%-
Transmittance at 425 nmmin. 90%-
Transmittance at 450 nmmin. 93%-

Regulatory & Compliance

Certifications & Compliance
FDA Compliant

Packaging & Availability

Packaging Type
Drums
Packaging

40 kg net/fiber Drum.

Storage & Handling

Storage

Must be stored in closed containers in dark dry conditions.