wavelength nm	T %
440	≥97
550	≥98

2-£¨2'-Hydroxy-3'-tert-butyl-5'-methylphenyl£©-5-chlorobenzortriazole

C₁₇H₁₈N₃OCL

315.5

[3896-11-5]

SBUV-326

Light yellow fine crystal

wavelength nm	T %
425	≥97
500	≥98

Toxicity is low.Rat LD₅₀>5g/kg body weight taking orally.

As the ultraviolet absorption agent,it is available to polyolefin,polyvinyl chloride as well as plexiglass and ABS resin etc.The max.absorbing wavelength range is 270-380nm.

The chemical stability is good.It can be stored and transported according to the general chemical matter regulation.

2-£¨2'-Hydroxy-3',5'-di-tert-butylphenyl£©-5-chlorobenzotriazole

C₂₀H₂₄N₃OCl

357.9

[3864-99-1]

SBUV-327

Slightly yellow powder

wavelength nm	T %
440	≥97
500	≥98

Toxicity is low.Rat LD₅₀=5g/kg body weight taking orally.

As the ultraviolet absorption agent,it is available to polyolefine,It is also availabe to PVC,Polycarbonate,polyurethane,plexiglass and many kinds of paint.The max.absorbing wavelength range is 270-380nm.

The chemical stability is good.It can be stored and transported according to the general chemcial matter regulation.

2-£¨2'-Hydroxy-3',5'-dipentylphenyl£©benzotriazole

C₂₂H₂₉N₃O

351.5

[21615-48-6]

SBUV-328

White to light yellow powder

wavelength nm	T %
440	≥97
500	≥98

Toxicity is low.FDA(USA)has permitted it to be used as the foodstuff packing material.

As the ultraviolet absorption agent,it is avaiblable to polyolefine,polystyrene,PVC,polyurethane,polyester etc.It is execellent in benzotriazole kind of uv absorber.The max.absorbing wavelength is 345nm.The general consumption is about 1%.

The chemical stability is good.It can be stored and transported according to the general chemcial matter regulation.

2-£¨2'-Hydroxy-5'-tert-octylphenyl£©benzotriazole

C₂₀H₂₅N₃O

323

[3147-75-9]

SBUV-329

White powder

wavelength nm	T %
440	≥96
500	≥99

The product is notoxicity basically.LD₅₀>10g/kg body weight taking orally.

As the ultraviolet absorption agent,it is available to polyolefine,polystyrene,plexiglass,polycarbonate,ABS resin etc.The general consumption is 0.01-1%.

The chemical stability is good.It can be stored and transported according to the general chemcial matter regulation.

2-Hydroxy-4-n-octoxybenzophenone

C₂₁H₂₆O₃

326

[1843-05-6]

SBUV-531

Light yellow crystal

wavelength nm	T %
450	≥90
500	≥95

Toxicity is low.Rat LD₅₀>12g/kg body weight taking orally.

As the ultraviolet absorption agent,it is chiefly used in polyolefin,and it is available to alkene base resin,polystyrene,polyester and polyamide etc too.The max.absorbing wavelength range is 300-375nm.The general consumption is 0.2-0.6%.

The chemical stability is good.It can be stored and transpoted according to the general chemical matter regulation.

Bis(2,2,6,6-tetramethyl-4-piperidine)sebacate

C₂₈H₅₂O₄N₂

Properties

It is a white or very pale yellowish crystalline powder. Melting point 80-86¡ãC,relative density 1.05(at 20¡ãC).It's light stabilizer result is superior to general ultraviolet absorber. It can strengthen heat resistance using together with Antioxidant. It can also strengthen light resistance using together with light stabilizer.

Purity

Volatile matter

Melting point

81-86¡ãC

Transmissirity

425nm 97%min 500nm 98%min

Usage

As light stabilizer, particularly, it is used for polypropylene, polyethylene, polyethylene, ABSresins, Polyester and Polyurethane and so on. It has good light stabilizer property.

Isopropyl thioxanthone(mixture of 2-and 4-isomers)

C₁₅H₁₃NOS

241

[5495-84-17] and [83846-86-0]mixture

SBPI-ITX

yellow crystal powder

It is used in transparent or colour UV-photocurable ink,binder and paint.It is generally used with the amine synergist(EDAB)together.It is used with the anion initiator together,and also acts as the effect of sensitizer.It is suggested that the adding amount is 0.2-2% w/w.

The chemical stability is good.It can be stored and tansported according to the general chemcial matter regulation.