To catalogue

Hangzhou Hi-Tech Fine Chemical OB-1

CAS Number
1533-45-5
EC Number
216-245-3
Chemical Name
4,4′-Bis(2-benzoxazolyl)stilbene, 44′-Bis(2-benzoxazolyl)stilbene

Hangzhou Hi-Tech Fine Chemical OB-1 is wdely used in ABS, PS, HIPS, PA, PC, PP, EVA and rigid PVC and other plastics. It can withstand high temperature of 375℃, especially suitable for engineering plastic products and fiber products processed at high temperature. When using fluorescent whitening agent OB-1 for PE and soft PVC, special attention should be paid to the control of the dosage. If the dosage is too much, the whitening agent will migrate.

Properties

Physical Form
  • Crystals
  • Powder
  • Solid

Product families

Applications

Automotive & Transportation — Automotive
  • Automotive Lighting
Building & Construction — Building Materials
  • Interior Fixtures

Product Families

Pigments & Colorants — Dyes
  • Specialty Dyes
Elastomers — Elastomer Additives
  • Other Elastomer Additives
Plastics — Polymer Additives
  • Pigments & Colorants

Other characteristics

Color
  • Green, Yellow
  • Green
  • Yellow
Functions
Optical Brightener
Compatible Polymers & Resins

Acrylonitrile Butadiene Styrene (ABS), Ethylene Vinyl Acetate (EVA), High-Impact Polystyrene (HIPS), Polyamides, Polycarbonates (PC), Polypropylenes (PP), Polystyrenes (PS)

Markets
  • Automotive & Transportation
  • Building & Construction
Storage

It is recommended to store in a dry and ventilated warehouse, avoid rain. Keep away from fire and heat sources and avoid exposure to the sun. It is strictly forbidden to directly contact or mix with acid and alkali.

Dye Type
Fluorescent Dyes
PACKAGING
10kg carton packing lined with plastic bag.
Shelf LIfe
Two years
Technology
  • Elastomers
  • Pigments & Colorants
  • Plastics
Main Chemicals
Fluorescent Brightener 393
Packaging Type
Bags
Product Features

It is not soluble in water. It has good heat resistance and is especially suitable for the processing of high melting point resins such as polyester. It has excellent whitening effect and very little addition.

Moleculr Formula
C28H18N2O2
Material Features
  • Heat Resistance
  • High Temperature Strength
  • Whitening
Recommended Dosage
0.0025 - 0.025%, not more than 0.03%.
Compatible Polymers and Resins
  • Acrylonitrile Butadiene Styrene (ABS)
  • Ethylene Vinyl Acetate (EVA)
  • High-Impact Polystyrene (HIPS)
  • Polyamides
  • Polycarbonates (PC)
  • Polypropylenes (PP)
  • Polystyrenes (PS)
Plastics and Elastomers Functions
Optical Brightener

Technical data

Table 1 of 1

3 rows
CharacteristicValueUnit
Melting Point353 - 359℃
Maximum Absorption Spectrum Wave Length374.0nm
Maximum Emission Wave Length434.0nm

The Omnichem website uses cookies. By continuing to use the site, you consent to their use in accordance with our Privacy Policy and to the collection of analytics.