OB-1 C.I.393 for PVC

Product Name

Optical Brightening Agent OB-1

Chemical Name

2.2’-(4.4’-diphenol vinyl) dibenzoxazol

CAS No.

1533-45-5

C.I. No.

393

Molecular Formula

C₂₈H₁₈N₂O₂

Molecular Weight

414

Technical Index

Appearance:yellowish green powder
Melting Point:357~359°C
Purity:≥99%

Uses

Mainly be used in whitening of polyester and plastic, as well in whitening of Nylon during polymerization.

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

Rate of use: (per 1000kg of substrate)
Polyester: 75-300g
EVA, PP, nylon: 75-200g

Package

25kg per fiber drum