Characterization TINUVIN 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 surface area such as films and tapes.
Chemical name Bis(2,2,6,6,-tetramethyl-4-piperidyl)sebaceate
CAS number 52829-07-9
Structure TINUVIN 770
HN OC(CH2)8
O
CO NH
O
Molecular weight 481 g/mol
Applications TINUVIN 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 TINUVIN 770 is a low molecular weight hindered amine light stabilizer that provides excellent light
stability for thick sections and films in the recommended substrates. Benefit of using TINUVIN 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 TINUVIN 770 is less dependent on the
polymer’s thickness. For this reason the use of TINUVIN 770 also provides good light stability in articles
with higher specific surface, e.g. films and tapes.
Combined with other HALS TINUVIN 770 is part of other synergistic blends, e.g. TINUVIN 791
Product forms Code: TINUVIN 770 DF
Appearance: white crystalline granules
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 TINUVIN 770 in various substrates and for various applications is available
