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 Origin |
China |
| Model Number |
CAS Number 52829-07-9 |
Product Name : Light Stabilizer 770
Low Molecular Weight Hindered Amine Light Stabilizer (HALS)
Characterization 770 is a hindered amine light stabilizer (HALS) for applications demanding particularly high light stability. It provides excellent light stability for thick sections but can also be used for articles with a high surfacearea such as films and tapes.
Chemical Name Bis (2, 2, 6, 6-tetramethyl-4-piperidyl) sebaceate
CAS Number 52829-07-9
Structure 770
Molecular Weight 480.74
Applications 770 is recommended to be used in polypropylene, impact modified PP (TPO), EPDM, polystyrene, impact poystyrene, ABS, SAN, ASA and polyurethanes and is also effective in polyamides and polyacetals.
Features / Benefits 770 is a low molecular weight hindered amine light stabilizer that provides excellent light stability for thick sections and films in the recommended substrates. Benefits of using 770 is the high light-stabilizing performance, particularly in PP thick sections. It has broad compatibility and can be easily dispersed.
Compared to conventional UV-absorbers, the effectiveness of 770 is less dependent on the polymer? thickness. For this reason the use of 770 also provides good light stability in articles with higher specific surface, xxxxx and tapes.
Combined with other HALS 770 is part of other synergistic blends, xxxxx
791
Guidelines for use The recommended concentrations range between 0.1% and 0.5%, depending on the substrate, processing conditions and application. The optimum level is substrate and application specific. Extensive performance data of 770 in various substrates and for various applications is available upon request.
Physical and Chemical Properties
Appearance and behaviour White crystalline powder or granules, odorless
PH-value (1% suspension in water 20~25°C) 9.67
Melting / freezing temperature 80~86°C
Density (20°C) 1.05g/cm3
Flash point >150°C
Ignition temperature 330°C
Water solubility (20°C) ＜1mg/L
Vapor pressure (20°C) 1.3 E-8 Pa
Partition coefficient (Log Pow, 20~25°C) 0.35
Handling & Safety In accordance with good industrial practice, handle with care and unnecessary personal contact. Avoid contact with eyes. Avoid release to the environment. Avoid dust formation and ignition sources.
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