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LS-783(Light Stabilizer 783)CAS: 71878-19-8

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Synonyms: Sanol 944;Sanol LS 944;Tinuvin 944;UV 944;C 944;CH944;Chimassorb 944FD;Chimassorb 944LD;Chimassorb 994LD;Chimassorb LS 944LD;GW 944;GW 944Z;HALS944;Lowilite 94;Poly[[6-[(1,1,3,3-tetramethylbutyl)amino]-s-triazine-2,4-diyl][(2,2,6,6-tetramethyl-4-piperidinyl)imino]hexamethylene[(2,2,6,6-tetramethyl-4-piperidinyl)imino]];Sanduvor 3944; Classification: Other Chemicals
EINECS: Molecular Formula: (C35H66N8)n
Melting Point: 136-140 °C(lit.) Boiling Point:
Stability: Water Solubility:
Refractive index: Flash Point:
Purity: Appearance:
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 LS-783(Light Stabilizer 783)


The active substance is a mixture of:Poly[[6-[(1,1,3,3-tetramethylbutyl)amino]-s-triazine-2,4-diyl]-[(2,2,6,6-tetramethyl-4-piperidyl)imino]-hexamethylene-[(2,2,6,6-tetramethyl-4-piperidyl)imino]] and Butanedioic acid, dimethylester, polymer with 4-hydroxy -2,2,6,6-tetramethyl-1-piperidine ethanol. It is a kind of universal light stabilizer.


CAS NO : 71878-19-8+65447-77-0

Appearance :slightly yellow powder or granule

Melting point: 50-140  Flash point:192(DIN 51758)

Transmittance:425 nm≥90   500 nm≥94


Has good resistance to pull. Low gas fume polychromasia. Low pigment interaction.


Can be used in polyolefin, EVA and olefin copolymer PP blend with elastomer.

Packing:LS-783 is available in a 25kg fiber drum or 25kg carton.

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