Low Molecular Weight Hindered Amine Light Stabilizer(HALS)

Commodity Name:Light Stabilizer 770

Characterization:SH 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:SH 770

 Molecular Weight:480.74

Applications:SH 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:SH 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 SH 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 SH 770 is less dependent on the polymer's thickness.For this reason the use of SH 770 also provides good light stability in articles with higher specific surface,e.g.films and tapes.

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 SH 770 in various substrates and for various applications is available upon request.

Physical and Chemical Properties

 White free flowing powder. Insoluble in water, easily dissolves in methanol, ethanol, methylbenzene, and ketones. Melting point is 63-68 C, density is 1.19.

 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

Handing & 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.

For more detailed information please refer to the material safety data sheet.

 Storage:Store in dry places under 30°C.

 Package:20kgs cardboard drum(inner with plastic bag).