UV-Absorber

THREESORB™

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)