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Optical Brightener OB

Categories：

Plastic antioxidant

Features:Brilliant bluish whitening effects; excellent heat resistance; high chemical stability; good compatibility in a wide range of resin.

Email:icason@icason.com

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Chemical Name:

2,5-Thiophenediylbis(5-tert-butyl-1,3-benzoxazole)

Formula: C26H26N2O2S

CAS# 7128-64-5

Specification:

Appearance

Slight greenish yellow powder

Dosage

0.01-0.05%

Melting point

196-200℃

Purity

≥99%

Solubility

(g/100 g solution) at 20° C:

Acetone

0.5

Chloroform

14

Dimethylformamide

0.8

Dioxane

2

n-Hexane

0.2

Methanol

＜0.1

Methylethylketone

1.3

Tricresylphosphate

0.8

Xylene

5

Application:

>Features:Brilliant bluish whitening effects; excellent heat resistance; high chemical stability; good compatibility in a wide range of resin.

>Optical Brightener OB is used as an brightener and to offset the yellowness of a polymer and yield a whiter appearance. Mainly used as thermoplastic (PVC, PS, PE, PP, ABS) optical brightener. Also for coatings, printing inks, paints, dyes, manufactured fibers, synthetic leather, waxes, fats, and oils. Recommend indoor use only.

>If OB must be used in combination with a UV absorber, the absorption spectrum of the latter must leave an open window in the near UVA for the optical brightener ob.

>Recommended concentrations:0.02-5% depend on the application and degree of desired whiteness.

Key words:

Thermoplastic elastomers

Previous:

Fluorescing whitening agents OB-1

Next:

Antioxidant 1035

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