UV Absorber UV-328 for PU/PVC

• Customization: Available
• CAS No.: 25973-55-1
• Formula: C22h29n3o
• Model NO.: CAS NO. 25973-55-1
• EINECS: 247-384-8
• Color: White to Little Yellow
• Kind: UV Absorber
• Appearance: Powder
• Storing: Sealed, Dry and Dark Conditions
• Transport Package: 25kg Carton
• Specification: powder
• Trademark: DEBORN
• Origin: China

Product Description

Chemical Name: 2-(2'-Hydroxy-3',5'-dipentylphenyl)benzotriazole
Synonyms:2-(2H-benzotriaziol-2-yl)-4,6-Di-Tert-Pentylphenol
Molecular Formula:  C22H29N3O    
Molecular Weight:  351.48516    
Structure:


CAS Number :  25973-55-1


Specification:

Appearance	white to light yellow powder
Content	≥ 99%
Melting point	80-83°C
Loss on drying	≤ 0.5%
Ash	≤ 0.1%
Light transmittance	440nm≥96%
	500nm≥97%

Applications:
This product is mainly used in polyvinyl chloride, polyurethane, polyester resin and others. Max absorption wave length range is 345nm.

Dosage:
1. Unsaturated Polyester : 0.2-0.5wt% based on polymer weight
2.PVC:
Rigid PVC : 0.2-0.5wt% based on polymer weight
Plasticized PVC : 0.1-0.3wt% based on polymer weight
3.Polyurethane : 0.2-1.0wt% based on polymer weight
4.Polyamide : 0.2-0.5wt% based on polymer weight

Package and Storage:

1. 25kg carton
2. Stored in sealed, dry and dark conditions

Other products of the UV Absorber Series, for example:
BP-1 (UV-0)
BP-2
BP-3(UV9)
BP-4
BP-5
BP-6
BP-9
BP-12(UV-531)
BP-P
UV-120
UV-234
UV-320
UV-326
UV-327
UV-329
(UV-5411)
UV-360
UV-571
UV-1084
UV-1164
UV-1577
UV-2908
UV-3030
UV-3039
UV-3638
UV-4050H
UV-5050H
UV-1
UV-2