UV234 Tinuvin 234 Lowilite 234 Ultraviolet Absorbers 234 , CAS
No.70321 - 86 - 7
Quick Detail :
UV234 is a high molecular weight ultraviolet light absorber ( UVA )
of the hydroxyphenyl benzotriazole class, imparting outstanding
light stability to a variety of polymersduring its use .
- Name : UV234
- Chemical name : 2 - ( 2H - Benzotriazol - 2 - yl ) - 4 , 6 - bis (
1 - methyl - 1 - phenylethyl ) phenol
- CAS No. : 70321 - 86 - 7
- Function : Low volatility , Exceptional light absorbing
characteristics and good compatibility
UV234 features low volatility , exceptional light absorbing
characteristics and good compatibility in various substrates . This
makes the product especially suitable for applications
characterized by high surface area , such as films and fiber. It
protects organicpolymers as well as pigments from UV light,
improving and preserving the technical and visual performance of
such applications .
UV234 is highly effective for polymers usually processed at high
temperature such as polycarbonate , polyesters , polyaceta l,
polyamides , polyphenylene sulfide , polyphenyleneoxide , aromatic
copolymers , thermoplastic polyurethane and polyurethane fibers ,
whereloss of UVA is not tolerated as well as for polyvinylchloride
, styrene homo- and copolymers . Applications include molded
articles , films , sheets and fibers .
|Assay (GC)||99% min|
|Transmittance||460nm 97.0% min|
|500nm 98.0% min|
Competitive Advantage :
Protects organic polymers as well as pigments from UV light ,
improving and preserving the technical and visual performance .
Food Contact Approvals in most polymers .
Hongkun is one of the biggest manufacturers of UV234 in China with
the same quality of BASF , and the application effect has been
proved by many customers .