Mô tả

Optical Brightener OB
Chemical Name 2.5-bis(5-tertbutyl-2-benzoxazolyl)thiophene
Molecular Formula C26H26SO2N2
Molecular Weight 430.575

Structure
CAS Number 7128-64 -5
Specification

Appearance: Light green powder
Assay: 99.0% min
Melting Point: 196 -203°C
Volatiles Content 0.5% max
Ash content: 0.2% max

Applications

It is used in thermoplastic plastics. PVC, PE, PP, PS, ABS, SAN, SB, CA, PA,
PMMA, acrylic resin., polyester fiber paint, coating the brightening of printing ink. .

Usage: (With plastic raw material weight percentage)
PVC Whitening: 0.01 ~ 0.05%
PVC : To improve brightness: 0.0001 ~ 0.001%
PS : 0.0001 ~ 0.001%
ABS: 0.01 ~ 0.05%
Polyolefin colorless matrix: 0.0005 ~ 0.001%
White Matrix: 0.005 ~ 0.05%

Packing

25 kg / fiber drum