Description

brightening agent

1.bright color
2.high quality
3.quick delivery
4.low price

Optical Brightener OB

CAS No. ********5 Place of Origin Shandong, China (Mainland) Type Other Usage Other Brand Name ZJC Model Number OB color Yellowish or yellowish green crystal powder Purity *9.5

Typical Properties:

Chemical Name: 2,*-(2,*-Thiophenediyl) Bis[*-(1,*-dimethylethy)]
Benzoxazole
Molecular Formula: C*7H*7O2N2S
Molecular Weight: **3
CAS No.: ********5
C.I.: **4

Specifications:

Appearance: Yellowish or yellowish green crystal powder
Assay: *9% min.
Melting Point: ******3
Ash: 0.3% max.
Volatile Content: 0.3%max.
Particle size: **0 meshes
Max. Absorption Wavelength: **5nm(in ethanol)

Application:

It can be used to whiten PVC, polystyrene, polypropylene, PA, PMMA, PE,PP, Paint, coating, printing ink and so on.

 

is used widely in the plastic market. Because of its excellent brightening ability,good thermal stability,and compatibility with many polymers.

Typical Properties:

Chemical name: 2,*-(1,*-Ethenediyldi*4, *-phenylene) bisbenzoxazole
Molecular weight: **4.4
CAS No.: ********5
C.I.: **3

Specifications:

Ash %                       0.3max
Empirical Formula             C*8H*8N2O2
Melting Point(DTA),C          ******9
Appearance                  Yellowish Green Powder
Odor                         Free of odor
Volatile Content %             0.3max
Assay %                      *9min
Particle Size                  **0 meshes

Application:

For whitening of polyester and nylon; also used in ABS, PS, HIPS, PA, PC, PP, EVA, PVC, etc.

Rate of use: (per ***0kg of substrate)
Polyester: *****0g
EVA, PP, nylon: *****0g

Packing:

*5kg / fiber drum with PE liner