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PUREsorb 944 is a high molecular weight hindered amine light stabilizer (HALS). It shows excellent compatibility, high resistance to extraction and low volatility.

Chemical Family: Hindered Amine Light Stabilizer (HALS)

Functions: Light Stabilizer, Stabilizer

Compatible Polymers & Resins: Ethylene Vinyl Acetate (EVA), Polyamides, Polyethylenes (PE), Polypropylenes (PP), Polyurethanes (PU), Polyvinyl Chloride (PVC)

Features: Excellent Compatibility, Extraction Resistant, Good Thermal Stability, High Molecular Weight, Highly Efficient, Low Volatility

End Uses: Film, Indirect Food Contact Applications

Synonyms: Antioxidant 944, Light Stabilizer 944, Poly[[6-[(1,1,3,3-tetramethylbutyl)amino]-1,3,5-triazine-2,4-diyl][(2,2,6,6-tetramethyl-4-piperidinyl)imino]-1,6-hexanediyl[(2,2,6,6-tetramethyl-4-piperidinyl)imino]]

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Knowde Enhanced TDS

Identification & Functionality

Plastics & Elastomers Functions
CAS No.
71878-19-8
EC No.
615-678-9
Chemical Structure

PUREsorb 944 - Chemical Structure

Features & Benefits

Key Attributes

PUREsorb 944 imparts excellent light stability to thin articles, particularly fibers and films. In thick cross sections it is specifically suitable for polyethylene articles. In addition, its use is recommended for applications requiring indirect food contact approval. PUREsorb 944 is highly effective as a long-term thermal stabilizer in thin and thick articles and shows good extraction resistance.

Applications & Uses

Plastics & Elastomers End Uses
Product Applications

PUREsorb 944 areas of application include polyolefins (PP, PE), olefin copolymers such as EVA as well as blends of polypropylene with elastomers. In addition, in certain instances PUREsorb 944 is highly effective in polyacetals, polyamides, polyurethanes, flexible and rigid PVC, as well as PVC blends and in certain styrenic elastomer and adhesive specialty applications.

Films (LDPE & LLDPE) 0.10 - 1.0%
Fibers (PP) 0.10 - 1.4%
Tapes (HDPE & PP) 0.10 - 0.8%
Thick section (HDPE, LDPE, LLDPE & PP) 0.05 - 1.4%

 

Properties

Color
Appearance
White to slightly yellowish white to slightly yellowish granules and powder
Physical Properties
ValueUnitsTest Method / Conditions
Melting Range100 - 135°C
Vapor Pressure1010000.0Pa
Flash Pointmin. 150°C
Specific Gravity (at 20°C)1.01g/cm3
Solubility
ValueUnitsTest Method / Conditions
Acetone (at 20°C)min. 50g/100g
Ethyl Acetate (at 20°C)min. 50g/100g
Methanol (at 20°C)3.0g/100g
Methylene Chloride (at 20°C)min. 50g/100g
Chloroform (at 20°C)min. 50g/100g
Toluene (at 20°C)min. 50g/100g
n-Hexane (at 20°C)40.0g/100g
Water (at 20°C)max. 0.01g/100g

Storage & Handling

Product Handling

In accordance with good industrial practice, handle with care and avoid unnecessary personal contact. Avoid continuous or repetitive breathing of dust. Use only with adequate ventilation. Avoid dust formation and ignition sources.