Characterization YS 326 is an UV absorber ofthe hydroxyphenlbenzotriazole class which is used for theprotection of plastic materials and coating from the degradationthough UV light.

Chemical Name2-(2''-Hydroxy-3''-tert-buty-5''-methyl-phenyl)-5-chlorobenzortiazole
CAS Number 3896-11-5
Structure YS 326
Applications YS 326 is especially suited forpolyolefins, cold cured polyesters and wood lacquers.

Features / Benefits YS 326 has a wide range ofindirect food approvals in polyolefins. It has a low volatility athigh temperatures and high resistance to thermal degradation andcan therefore be used without significant loss or decomposition inthe polyolefin compounding and moulding process.
In the use for the UV protection of polyester resins, YS 326 doesnot form colored complexes with the metallic salts used for thecuring process of these resins.