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Tiangang® HS-791

Synergistic Mixture of Oligomeric Hindered Amine light stabilizer

Chemical name Tiangang® HS-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]}, and
Tiangang® HS-770:  Bis(2,2,6,6-tetramethyl-4-piperidyl)-sebaceate
CAS number Preparation: 71878-19-8/70624-18-9 (US) and 52829-07-9
Tiangang® HS-791 is a synergistic mixture of Tiangang® HS-944 and Tiangang® HS-770. It is a highly effective radical scavenger belonging to the Hindered Amine Light Stabilizers (HALS) family of stabilizers. It is an excellent UV stabilizer for various thick applications of PP, PP/EPDM and PP/PE/EPDM blends (TPOs), such as automotive bumpers, garden furniture, tapes and woven sacks.

Typical properties

  Appearance Relative Density
@ 20oC
Melting range
Flash point
Tiangang® HS-791PW White to slightly yellow powder 1.0 – 1.2 g/cm3 55~140 > 150
Tiangang® HS-791FB White to slightly yellow granules

Safety & handling

Tiangang® HS-791 The use of proper protective equipment is recommended. Excess exposure to the product should be avoided. Wash thoroughly after handling. Store the product in a cool, dry, well-ventilated area away from incompatible materials.
DisclaimerThe information supplied is presented in good faith and has been derived from sources believed to be reliable. Since conditions of use are beyond our control, all risks are assumed by the user. No representation is expressed or implied, and nothing herein shall be construed as permission or recommendation to practice a patented invention without license.