Light Stabilizer 783 for Agriculture Film

Characterization
LS 783 is a synergistic mixture of light stabilizer 944 and light stabilizer 622. It is a versatile light stabilizer with good extraction resistance, low gas fading and low pigment interaction. LS 783 is particularly well suited for LDPE, LLDPE, HDPE films, tapes and thick sections and for PP films. It is also the product of choice for thick sections where indirect food contact approval is required.

Chemical name
Poly[[6-[(1,1,3,3-tetramethylbutyl)amino]-1,3,5-triazine-2,4diyl][(2,2,6,6-tetramethyl-4-piperidinyl)imino]-1,6-hexanediyl[(2,2,6,6-tetramethyl-4-piperidinyl)imino]])

LS 622: Butanedioic acid, dimethylester, polymer with 4-hydroxy- 2,2,6,6-tetramethyl-1-piperidine ethanol

Structure(light stabilizer 944)

Molecular weight
Mn = 2000 – 3100 g/mol
Structure( light stabilizer 622)

Molecular weight
Mn = 3100 – 4000 g/mol

Product forms
Appearance:white to slightly yellow pastilles

Guidelines for use
Thick sections*: UV stabilization of HDPE, LLDPE, 0.05 – 1 %; LDPE and PP
Films*: UV stabilization of LLDPE and PP 0.1 – 1.0 %
Tapes: UV stabilization of PP and HDPE 0.1 – 0.8 %
Fibers: UV stabilization of PP 0.1 – 1.4 %

Physical properties
Melting range:55 – 140 °C
Flashpoint (DIN 51758):192 °C

Bulk density
514 g/l

Applications
LS 783 areas of application include polyolefins (PP, PE), olefin copoly- mers such as EVA as well as blends of polypropylene with elastomers, and PA.

Packing and Storage
Package: 25KG/CARTON
Storage: Stable in property, keep ventilation and away from water and high temperature.