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Shanghai Deborn Co., Ltd.

Tinuvin 791, UV-791, Hals 791 manufacturer / supplier in China, offering Ultraviolet Absorbent UV-791, Glycidyl Methacrylate, Methyl Paraben Used as Preservatives and so on.

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Ultraviolet Absorbent UV-791

FOB Price: Get Latest Price
Min. Order: 50 kg
Port: Shanghai, China
Transport Package: 25kg/Carton
Payment Terms: L/C, T/T, D/P
Basic Info
  • Model NO.: UV-791
  • Kind: Light Stabilizer
  • Trademark: DEBORN
  • Origin: China
  • Color: White
  • Appearance: Granulars
  • Specification: 98%
Product Description
Ultraviolet absorbent UV-791
   Characterization                                  UV 791 is a synergistic mixture of light stabilizer 944 and Tinuvin 770.
It is an excellent light stabilizer especially for PP thick sections, which offers
excellent surface protection. It also shows high stabilization efficiency in PP
tapes.
 
CAS NO.                                                71878-19-8 / 52829-07-9
Chemical name 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]])
 
Structure                                           light stabilizer 944
 
        
Ultraviolet Absorbent UV-791
                         
Molecular weight                              Mn = 2000 3100 g/mol
Structure                                           Tinuvin 770
 
and

 
Ultraviolet Absorbent UV-791
 Molecular weight                              481 g/mol
 
Product forms                                        Appearance: white to slightly yellow granules, odorless
 
 
Guidelines for use                                  Thick sections*:              UV stabilization of PP                                0.1 0.8 %
Tapes:                          UV stabilization of PP                                0.1 0.8 %
 
* The presence of a UV absober (e. g. Tinuvin 326/328 or Chimassorb 81) is recommended in unpigmented or slightly pigmented articles or to improve the light fastness of certain organic pigments.
 
Physical properties                           Melting range:                              approx. 55 °C start
Specific gravity (20 °C):                    1.0 1.2 g/cm3
Flashpoint:                                   > 150 °C
Vapor pressure (20 °C):                    < 0.01 Pa
 
 
 
Applications                                          UV 791 areas of application are PP, blends of polypropylene with elastomers and PA: It can also be used in styrenic polymers, e. g. ABS, impact polystyrene, etc.
 
 
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