PRODUCT THREESORB™ P THREESORB™ 320 THREESORB™ 326 THREESORB™ 327 Group BPZ BPZ BPZ BPZ Appearance Slightly yellow powder White powder Greenish white powder Light yellow powder Chemical name 2-(2'-hydroxy-5'- methylphenyl) benzotriazole 2-(2'hydroxy-3',5'- ditert.butylphenyl)- benzotriazole 2-(3'-tert-Butyl-2'- hydroxy-5'- methylphenyl)-5- chlorobenzotriazole 2-(2'hydroxy-3',5'- ditert.butylphenyl) -5-chloro benzotriazole CAS No 2440-22-4 3846-71-7 3896-11-05 3864-99-1 Structural formula M.W 225.3 323.4 315.8 357.9 M.P(℃) 128~132℃ 138~140℃ 138~141℃ 154~158℃ LD50 2,000(mg/kg) 2,000(mg/kg) 2,000(mg/kg) 2,000(mg/kg) Application PVC, Styrenics, acrylic resins, PC, PU, UPE, PMMA,Polyacetal (POM), Melammine resins, Epoxy resins Rigid, PVC, Cold crude UPE PP, PE, Unsaturated PC, Styrenics, Acrylic PP,HDPE, PVC, UPE, Styrene-cased thermoplastic, elastomer, PA, ABS, IPS, PVDC, CR rubber   PRODUCT THREESORB™ 770 THREESORB™ 944 THREESORB™ BP-2 THREESORB™ BP-6 Group HALS HALS BP BP Appearance White powder White powder Pale yellow white powder Pale yellow white powder Chemical name Bis (2,2,6,6-tetra- methyl-4 -piperdinylsebacate Poly[[6-[(1,1,3,3, -tetramethylbutyl)amino]- 1,3,5-triazine-2,4- diyl][(2,2,6,6,- hexanediyl[(2,2,6,6,- tetramethyl-4) 2,2',4,4'-tetrahydroxy benzophenone Benzophenone 2,2'-Dihydroxy-4,4'- Dimethoxy Benzophenone CAS No 52829-07-9 71878-19-8 131-55-5 131-54-4 Structural formula M.W 480.7 2,000~3,300 246 274 M.P(℃) 81~85℃ 100~135℃ 196℃ 129~131℃ LD50 〉2,000mg/kg 〉2,000mg/kg     Application PP(tape, Film, thick item), PE (thin and thick item) Polyolefins, olefin copolymers(EVA,blend of PP with elastomer, crosslinked PE) Cosmetics, Dyestuff and pigment(textile,paper,leat her), Plastices(Elastomer, plastic film) Fluorescent Pigment(paint and coating) Paint, Varnish (Urethane,Acryl,and oil paint)Plastic(Plastic,Elastomer, Textile Plastic film)