Hangzhou Sunny Chemical Corp.Ltd.

No.79 Jiaogong Road

Phone: 86-571-8821-2363
E-Mail: info@sunnychemical.comThis e-mail address is being protected from spam bots, you need JavaScript enabled to view it


Hangzhou Sunny Chemical Corp.Ltd.
Polymer additives are added with small amounts to protect polymers’ performance by preventing loss of mechanical strength, cracking, crazing, yellowing, and loss of gloss due to day-to-day exposure to air and light.
Our polymer additives, including UV absorbers, Antioxidants, Photoinitiators, Optical Brightener Agents (O.B.A.) and Colorants.
The recommended polymer additives hold the following advantages:
1) Excellent chemical stability
2) Excellent heat stability
3) Good compatibility with polymer
4) Low volatility
5) Low toxicity and small pollution
UV absorber ( Benzophenone):
UV-9 : 2-Hydroxy-4-methoxy benzophenone
CAS No. 121-57-7
Against Cyasorb UV 9
Formula C14H12O3
Molecular weight 228.25

UV-531 : 2-Hydroxy-4-octoxy benzophenone
CAS No. 1843-05-6
Against Cyasorb 531
Formula C21H26O3
Molecular weight 326.43

UV absorber ( Benzotriazole)
UV-P : 2-(2′-Hydroxy-5′-methylphenyl)-Benzotriazole
CAS NO. 2440-22-4
Against Tinuvin P

UV-326 : 2-(2′-Hydroxy -3′ -tert-butyl-5′-methylphenyl)-5-chloro benzotriazole
CAS NO. 3896-11-5
Against Tinuvin 326 (Ciba)

UV-327 : 2-(2′-Hydroxy -3′ ,5′-ditert-butylphenyl)-5-chloro benzotriazole
CAS NO. 3864-99-1
Against Tinuvin 327

UV-328 : 2-(2′-Hydroxy -3′ ,5′-ditert-butylphenyl)- benzotriazole
CAS NO. 25973-55-1
Against Tinuvin 328

UV-329 : 2-(2′-hydroxy-5′-tert-octyllphenyl)benzotriazole
CAS NO. 3147-75-9
Against Tinuvin 5411 (Ciba)

UV absorber (HALS)
Horsorb 292 : Bis(1,2,2,6,6-pentamethyl-4-piperidyl)sebacate
and 1-(Methyl)-8-(1,2,2,6,6-pentamethyl-4-piperidinyl)sebacate
Against Tinuvin 292 (Ciba-Geigy); Eversorb 93 (Everlight)
CAS NO.: 41556-26-7 and 82919-37-7

Horsorb 622 : Poly[1-(2′-Hydroxyethyl)-2,2,6,6-tetramethyl-4-hydroxy piperidylsuccinate
Against Tinuvin 622 (Ciba-Geigy);
CAS NO.: 65447-77-0