UV-944(Oligomeric Hindered Amine Light Stabilizer)

Chemical name : 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 ]] )
Introduction :UV-944 is a high molecular weight hindered amine light stabilizer (HALS). It showsexcellent compatibility, high resistance to extraction and low volatility.
Empirical Formula :[C₃₅H₆₄N₈]_n (n=4-5)
CAS NO : 70624-18-9
Structure :

Physical Properties

Molecular Weight : Mn = 2400-3100

Appearance : light yellow granules

Melting Range : 100–135 °C

Flashpoint : >150 °C

Specific Gravity(20 °C) : 1.01 g/cm³

Volatility Pure substance; TGA, heating rate 20 °C /min in air

Solubility At 20 °C (g/100ml solvent)

Toxicity & Safety

This material is not intended for use in products for which prolonged contact with mucous membranes or abraded skin, or implantation within the human body is specially intended, unless the finished product has been tested in accordance with the Food and Drug Administration and/or other applicable safety testing requirements. Because of wide range of such potential uses, Shinyang,Co,Inc. is not able to recommend this material as safe and effective for such uses and assumes no liability for any such uses.
Storage

This product may be stored for one year in a sealed container. Containers should be stored in a cool, dry area. Extended storage at elevated temperatures or exposure to direct heat or sunlight could reduce product life. Keep containers sealed when not in use. 
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. Prevent contamination of the environment. Avoid dust formation and ignition sources.
Packing

UV-944 is available in powder form in a 25kg (55.1 LB) fiber drum, net weight, with an inner PE liner. 
Important

The information contained herein is believed to be reliable. However, Shinyang, Co,Ltd. makes no warranty, whether expressed or implied, including warranties of merchantability or of fitness for a particular purpose, for the product or products referred to herein. No statements or recommendations contained herein are to be constructed as inducements to infringe any relevant patent, now or hereafter existence. Under no circumstances shall Shinyang, Co,Ltd. be liable for incidental, consequential, or other damages from alleged negligence, breach of warranty, strict liability, or any other legal theory, arising out of the use of handling of the product or products referred to herein. The sole remedy of the buyer and sole liability of Shinyang, Co,Ltd. for any claims shall be limited to the buyers purchase price of the product which is subject of the claim or the amount actually paid for each product, whichever is less. Technical advice furnished by seller shall not constitute a warranty, which is expressly disclaimed, all such advice being given and accepted at the buyers risk.