UV 531 , Tinuvin 531 for ABS resin / polyurethane / phenolic resin
, CAS No. 1843 - 05 – 6
Quick Detail :
UV531 protects polymers from UV radiation , helping to preserve the
original appearance and physical integrity of molded articles ,
films , sheets , and fibers .
- Name : UV531
- Chemical name : 2 - Hydroxy - 4 - n - octoxybenzophenone
- CAS No. : 1843 - 05 - 6
UV531 significantly improves the resistance of clear coatings to
failures upon exposure to sunlight such as discoloration , cracking
, loss of gloss and loss of adhesion . Its performance in outdoor
applications can be improved further by use in synergistic
combination with a hindered amine light stabilizer ( HALS ) such as
UV292 or UV123 . Use of UV 531 should be reserved for applications
where expectations of the final coating’s durability are moderate
since the light stability of 2 - hydroxy - benzophenone derivatives
is known to be limited .
UV531 is an effective light stabilizer for a variety of plastics
and other organic substrates such as polycarbonate , PE , PVC , ABS
resin , polyurethane , phenolic resin , paraffin and rubber .
|Appearance||Light Yellowish Powder or Flake|
|Assay (GC)||99% min|
|Transmittance||450nm 95.0% min|
|500nm 97.0% min|
Competitive Advantage :
Protects organic polymers as well as pigments from UV light ,
improving and preserving the technical and visual performance .
Hongkun is one of the biggest manufacturers of UV Absorber in China
with the same quality of BASF , and the application effect has been
proved by many customers .